Amazfit GTR 4 Limited Edition User manual

Amazfit GTR 4 Limited Edition

USER MANUAL

Connection and Pairing

Use your phone to scan the following QR code, and download and install the Zepp app. For a better user experience, update the app to the latest version as prompted.

Note: Your mobile phone must run on Android 7.0 or iOS 12.0 or higher.

Initial pairing:

When the watch is started for the first time, the QR code used for pairing displays on the screen.
Open the Zepp app on your phone, log in to the app, and scan the QR code on the watch to pair your phone with the watch.

Pairing with a new phone:

1. Open the Zepp app on your old phone and synchronize data with the watch.
2. On the old mobile phone, go to Profile > Amazfit GTR 4 Limited Edition page and tap the Unpair button at the bottom to unpair. If it is an iPhone, after unbinding in the Zepp app, you need to unpair the phone and watch. Go to Settings > Bluetooth, find the Bluetooth name corresponding to the watch, and tap the button on the far right of the Bluetooth name. After entering the page, tap Ignore This Device.
3. Restore the factory settings of the watch, and then pair the watch with your new phone as described in the initial pairing procedure.

Updating Watch System

Keep the watch connected to your phone, open the Zepp app, and go to Profile > My devices > Amazfit GTR 4 Limited Edition > System Update to view or update the system of your watch.
We recommend that you tap Update Immediately when your watch receives a system update message.

Wearing

1. Wear the watch strap not too tight or too loose, and leave enough space for the skin to breathe. This makes you feel comfortable and allows the sensor to function.
2. When measuring blood oxygen, wear the watch correctly. Avoid wearing the watch on the wrist joint, keep your arm flat, maintain comfortable (appropriately tight) fitting between the watch and the wrist skin, and keep your arm still throughout the measurement process. When affected by external factors (arm sag, arm sway, arm hair, tattoo, etc.), the measurement result may be inaccurate or the measurement may fail with no output.
3. We recommend that you tighten the watch strap during workout and loosen it afterwards.

Basic Operations

Commonly used gestures and buttons

next step
Press and hold the watch face| Activates watch face selection and watch face settings
Cover the screen| Turns off the screen
Swipe from left to right| On most sub level pages, returns to the upper level page
Swipe up or down on the screen| Scrolls or switches pages
Rotate the digital crown| Scrolls or switc hes pages
Press and hold the upper button for five seconds or longer| Powers on, accesses the restart page, and performs force restart

Control center

Swipe down on the watch face page to enter the Control Center, where you can access system features of the watch.
Supported features include Power Saving mode, DND, Sleep mode, Theater mode, Calendar, Volume, Keep Screen On, Brightness, Settings, Flashlight, Bluetooth, Wi-Fi, Screen Lock, Find My Phone, and Eject Water.

Find the phone

1. Keep the watch connected to your phone.
2. On the watch face page, swipe down to go to the control center, and tap Find My Phone .Your phone will vibrate. Tap the ring button, and your phone will ring.

3. In the app list, tap Find My Phone, and your phone will vibrate. Tap the ring button, and your phone will ring.

Find the watch

Keep the watch connected to your phone, open the Zepp app, go to Profile > My devices > Amazfit GTR 4 Limited Edition, and tap Find Watch. Then, your watch will vibrate and ring. (The default setting is to vibrate only, and the alert tone needs to be set manually: Go to Watch Settings > Sound and Vibration > Ring for Alert to turn on the switch.)

Watch Face

Watch face compilations

Some watch faces support editing compilations . With compilations , you can view steps, calories, weather, and other information, and edit the information as needed.

Edit watch face compilations:

1. After waking up the watch, press and hold the watch face to enter the watch face selection page, where you can choose other watch faces or edit the compilations.
2. Swipe left or right on the screen to preview the watch faces currently available.

The Edit button is displayed at the bottom of a watch face that supports compilations. Tap the button to go to the page for editing the compilations of this watch face.

3. Select the compilation to edit. Tap a compilation, or swipe up or down on the screen to switch between compilations.
4. After editing, press the upper button to complete editing and enable the watch face.

Always On Display

If this feature is enabled, the screen still displays time and some information of the watch face in standby mode, which greatly reduces the battery life.

Set Always On Display:

1. After you wake up your watch, press the upper button to access the app list. Then, go to Settings > Display > Always On.
2. Select the screen style and enable status for Always On Display.

Add watch faces

In addition to the built-in watch faces, you can choose online watch faces as desired from the watch face store in the Zepp app and synchronize them to the watch. You can also use a photo you took using your phone or use an image in the album as a custom background watch face.

Add online watch faces:

1. Keep the watch connected to your phone, open the Zepp app, and go to Profile > My devices > Amazfit GTR 4 Limited Edition > Watch Faces.
2. Select one or more watch faces, and then synchronize them to the watch to give yourself multiple options.

Add customized watch faces:

Keep the watch connected to your phone, open the Zepp app, go to Profile > My devices > Amazfit GTR 4 Limited Edition > Watch Faces > Custom Background, and tap your preferred style to change background by selecting a photo from your phone’s Albums or taking a photo with your phone’s camera..

Change watch faces

1. After waking up the watch, long press the watch face to enter the watch face selection screen.

2. Swipe left or right on the screen to preview watch faces available on the watch, including built-in watch faces and synchronized online watch faces.
3. Tap the desired watch face to replace the current watch face.

Delete watch faces

When the storage space on the watch is almost full, you will need to delete some of the watch faces to make room for new ones (retain at least one watch face).

1. After waking up the watch, long press the watch face to enter the watch face selection screen.
2. Swipe left or right on the screen to preview watch faces available on the watch, including built-in watch faces, synchronized online watch faces, and customized watch faces.

3. Swipe up on the screen. For watch faces with a button, you can tap the button to delete the watch face.

State points

The state point is displayed on the top of the watch face to indicate the functions currently enabled on the watch, such as the Theater Mode turned on in the watch or the Countdown app running in the background.

The supported display states are:

• Low battery
• Battery saver mode
• DND mode
• Sleep mode
• Theater mode
• Stopwatch (tap the state point to go to the app)
• Countdown (tap the state point to go to the app)
• Music playing (tap the state point to go to the app)
• In workouts (tap the state point to go to the app)
• Charging

Notifications and Calls

App alerts

Keep the watch connected to your phone to receive the phone app alerts on your watch. On the watch face page, you can swipe up to view the latest 20 alerts in the notification center.

Clearing all notifications:

There is a Clear button at the bottom of the notification list. Tap it to clear all  notifications.

Or, after the watch restarts, notifications will be automatically cleared.

Clearing a single notification:

When a notification is pushed, or after you open a specific notification from the notification list, you can delete the notification by pressing the delete button at the bottom.

Setting method:

Keep the watch connected to your phone, open the Zepp app, go to Profile > My devices > Amazfit GTR 4 Limited Edition > Notifications and Reminders > App Alerts, and enable alerts for apps as needed.

Note:

• To enable this feature on an Android phone, you need to add the Zepp app to the allowlist or auto-run list in the phone’s background so that the app always runs in the background. If the Zepp app is terminated by the phone’s background process, the watch will be disconnected from your phone, and you cannot receive app notifications on the watch.
• For iOS, there are limited apps that can be set in the Notifications and Reminders just after the watch is activated. As the phone receives the notification messages from more apps, more apps will be displayed in the Notifications and Reminders of the Zepp app.

Bluetooth calling

• Once this feature is enabled, pair the watch with your phone via Bluetooth and maintain the connection to receive calls on the watch.
• While the watch and your phone are connected via Bluetooth, you can also make Bluetooth calls on the watch through the Phone app.

Bluetooth calling setup methods:

Method one: Start the Zepp app, go to Profile > Amazfit GTR 4 Limited Edition

App Settings > Phone, enable Bluetooth calls, and pair the watch and your phone via Bluetooth as instructed.

Method two: On your phone, go to Settings > Bluetooth to pair the watch with your phone:

1. On your phone, go to Settings > Bluetooth, and enable Bluetooth to make the phone discoverable. On the watch, go to the app list, tap Settings > Bluetooth, and ensure the Bluetooth is enabled.
2. Find the watch in the search results for available devices on your phone, and tap to pair the devices.

Incoming Call Alerts

To enable this feature, open the Zepp app, and go to Profile > Amazfit GTR 4
Limited Edition > App Settings > Phone > Incoming call. Once the feature is enabled, and while the watch and phone are connected, the watch will display a prompt when the phone receives a call, and you can ignore or hang up the call on the watch.

Morning Updates

With Morning Updates enabled, the device will push updates every morning. You can quickly view information such as today’s weather, workout status, health status, and personal affairs, and get prepared for the new day.
You can enable or disable the Morning Updates feature on the device under Settings > Preferences > Morning Updates. You can also tap Content Settings to adjust the content and display order in Morning

Updates.

The above settings can also be accessed in the Zepp app under Profile > Amazfit GTR 4 Limited Edition > Watch Settings > Morning Updates while keeping the watch connected to the phone.

Shortcuts

Shortcut Cards

Swipe right on the watch face to go to the Shortcut Cards page, where you can easily use and view various features and information:
You can add frequently used feature cards to the Shortcut Cards page for more convenient access, such as your latest event, next alarm, or recent BPM data.
You can also open the Zepp app and go to Profile >My devices> Amazfit GTR 4 Limited Edition > Shortcut Cards, where you can set shortcut cards to display and their display order.

Quick Access Apps

Swipe left on the watch face to view quick access apps. Quick access apps allow you to conveniently access watch features. You can add your frequently used apps and features, such as “Heart Rate”.

Change quick access apps:

1. After waking up the watch, press the upper button to open the app list. Go to Settings > Preferences > Widget, and swipe up or down on the screen to view the apps that can be added to Quick Access Apps.
2. When the number of “Current apps” reaches the upper limit, but you want to add new apps, remove redundant apps first, and then add the ones you need.

Press buttons for quick start-up

You can go to Watch > Settings > Preferences > Long Press Upper Button/Press Lower Button > select the app to be quickly launched, and then you can quickly open the previously set app by operating the corresponding button.

Triggering methods:

• Press and hold the upper button.
• Press the lower button.

Workouts

Workout modes

The watch supports over 150 workout modes, including running & walking, cycling, swimming, outdoor sports, indoor sports, dance, combat sports, ball sports, water sports, winter sports, leisure sports, board & card games, and others.

Workout list

1. Tap Workout in the watch App list or press the corresponding button on the watch face (if quick start-up is set for workouts) to go to the workout list.
2. Select the workout to start in the workout list.
3. Select More Workouts to view all workout modes and start a workout.

4. Tap to edit the workout list, where you can add, delete, and sort workouts.

Choose a workout

In the workout list, swipe up or down on the screen or rotate the digital crown to select the workout to start.

Start a workout

After entering the workout preparation page, for the workouts that require positioning, the device will automatically search for a GPS signal. The red status bar indicates that the watch is searching for a signal, and it will turn green once the signal is found. We recommend that you tap the workout icon to enter the workout after a successful GPS positioning, which can improve the accuracy of the workout data calculation.

For workouts that do not require positioning, you can directly tap the green status bar on the workout preparation page to start the workout.

Workout operations

Turn pages during a workout

During a workout, you can either swipe up or down on the screen or rotate the digital crown to turn pages. Swipe left or right to turn the pages left and right. On the left side of the workout data page, you can pause or end the workout. On the right side of the workout data page, you can control the music playback of the watch app or the mobile phone.

Workout screen lock status

After auto screen lock is enabled, the screen will turn off during workouts/in AOD mode/when the screen times out, and the status bar will display the icon.

In this state, the touch screen cannot be operated. You need to press the button to unlock the touch screen before you perform any operation, or you can directly press the button to perform workout operations.

For swimming, the touch screen will be continuously disabled during the workout, and can only be used after you pause or finish the workout by pressing the button.

Button definitions during workouts:

• When the screen is locked, press the lock icon to unlock.
• When the screen is unlocked, press the upper button to pause/start the workout.
• When the screen is unlocked, press the lower button to start a new lap/set.

Workout operations page

1. Pause/resume
Tap to enter the workout pause/resume page.
2. End
Tap to end the current workout and save the data.
3. Workout Assistant
Tap to modify some of the workout assistant settings (can be modified on the page when pause the workout).
4. Resume later
Press to save the current workout and return to the watch face. Enter the workout app again to return to the workout pause page.
5. More
Press to modify some of the settings.

Workout settings

On the workout preparation page, you can swipe up to go to the workout settings page to set the current workout mode. The related parameters vary depending on the workout mode.

Workout assistant

The workout assistant provides auxiliary tools for your workout, including the workout goals, workout alerts, auto laps, auto pause, cadence assistant, and virtual pacer. Auxiliary features provided by the workout assistant vary depending on workouts.

Workout goals

You can set workout goals, such as the duration, distance, calories, and effect in Workout Goal. The watch displays the current goal progress in real time during workouts. A message displays upon you achieve the preset workout goal. Workout goals vary depending on workouts.

Workout alerts

In this setting, you can set various reminders according to your needs, such as Distance Reminder, Heart Rate Reminder, etc. Workout alerts vary according to the workout.

1. Distance reminder
The watch vibrates and displays the duration that you use for each full kilometer/mile during the workout.
Go to Workout Mode > Settings > Assistant > Workout Alerts > Distance, set a target distance, and enable this feature.

2. Safe heart rate reminder
During a workout, if the watch detects that your heart rate exceeds the safe heart rate value you have set, it will vibrate and display a message on the screen. In this case, you need to slow down or stop.
Go to Workout Mode > Settings > Assistant > Workout Alerts > Safe Heart Rate, set a safe heart rate value, and enable the feature.

3. Heart rate range alert
During a workout, if the watch detects that your heart rate does not fall within the configured heart rate range, it will vibrate and display a message on the screen. In this case, you need to speed up or slow down to ensure that your heart rate is within the configured range.
To set the feature, go to Workout Mode > Settings > Assistant > Workout Alerts

Heart Rate Zone, set a heart rate zone, and enable this feature.

4. Pace alert
You can set a maximum/minimum pace value. If your pace exceeds the preset value, the watch will vibrate and display a message.
Go to Workout Mode > Settings > Assistant > Workout Alerts > Fastest/Slowest Pace, set a pace, and enable or disable this feature.
Additionally, the watch also supports alerts for the following: high speed, trips, speed, stroke frequency, cadence, time, calorie, drinking, energy intake, return, and rest period.

Cadence assistant

You can set the cadence per minute and the reminder frequency. During a workout,  the watch can sound or vibrate according to the set cadence, so that you can control your cadence.
Go to Workout Mode > Settings > Assistant > Cadence Assistant, set the cadence per minute and the reminder frequency, and enable this feature.

Virtual pacer

After you set a pace value of the virtual pacer, the current pace, the distance leading/lagging the virtual pacer, and your position in relation to the virtual pacer can be displayed during workouts.
Go to Outdoor Running/Treadmill > Settings > Assistant > Virtual Pacer, set the pace of the virtual pacer, and enable this feature.

Auto lap

This feature is available for some workouts. You can set the auto lap distance in the workout settings, and the watch will start an auto lap and remind you each time you reach the set distance during a workout. Also, when the screen is on and unlocked during a workout, you can press the lower button of the watch to manually start a lap.
The watch also records the workout details of each lap for both manual laps and auto laps. After the workout ends, you can view details of different laps.
Go to Workout Mode > Settings >Assistant > Auto Lap, and set the auto lap distance. Manual laps do not require any setting.

Auto pause

Enable or disable Auto pause. After the function is enabled, the workout will be automatically paused when the workout speed is too low. When the speed increases to a certain threshold, the workout can be resumed. You can also resume the working during the pause. The auto pause threshold can be customized for some workouts.
Go to Workout Mode > Settings > Assistant > Auto Pause

Navigation

Back to start point

In this exercise, you can return to the starting point of this exercise through navigation, and support returning by a straight line and returning to the original path. This function is only applicable to some outdoor activities where GPS tracks are generated during exercise.

Straight-line return

When this function is enabled, the track page of the device will connect a straight line based on your current position and the starting point of this exercise, and you can return to the starting point of this exercise by following this straight line guide.

Go to Workout Mode > Exercise paused > Navigation > Back to start point > Straight-line return

Note: The straight-line return route is drawn purely based on GPS location points, and it is impossible to judge impassable landform features such as mountains, rivers, canyons, and buildings. Please navigate according to the actual situation.

TracBack

When this function is enabled, the track page of the device will be navigated according to the route track you have passed, and you can return to the starting point of this exercise by pressing this track navigation.

Go to Workout Mode > Exercise paused > Navigation > Back to start point > TracBack

Track Navigation

Transfer the route track to the device through the Zepp App. You can activate the stored route track and navigate during exercise. After enabling it, the track page will give you the correct route guidance during exercise. This feature is only available for some outdoor workouts.
Go to Workout Mode > Settings > Navigation > Choose a route > Use route

Track Import

Track files in GPX, TCX, KML and other formats can be uploaded to the Zepp App , and then sent to the device through the App, and the route can be used for navigation on the device.

1. Save track：Go to select track file > Open with the Zepp App > Save track
2. Send the track to watch: Go to Zepp APP>Profile>More>My route> Choose a route then click the icon of on the right corner>Send to device

Training

Interval training

This feature is available for some workouts. On the watch, you can directly edit the training stage, rest stage and loops of interval training. When you use interval training, it will be performed according to settings you did. After this stage is completed, the training automatically goes to the next stage.

You can edit the training stages and rest stages by distance, time, and trips as well as in a customized way. The items for editing vary according to the workout.
Go to Workout Mode > Settings > Training > Interval training

More

Edit data items

You can edit data items during workouts, including editing the workout data and charts, deleting, adding or sorting data pages.
Optional values of the data page format include 1, 2, 3, 4, 5 or 6 data items per page.
More than 150 workout data items are supported (specific supported data items vary by workouts).
More than 8 types of real-time charts are supported, including pace, elevation, and more.
Up to 10 pages of data/workout charts can be added.

3D data mode

You can enable or disable the function for some workouts in workout settings. If the function is enabled, the watch calculates distance using 3D data, as shown in the preceding figure. As shown in the picture, after 3D distance is enabled, the slope distance of the route will be calculated, the altitude and slope changes will be considered, and the calculated distance will match the actual distance of the route. If 3D distance is not enabled, the projected distance will be calculated based on the route traversed, namely the 2D distance shown in the picture.

Wrist side

For some workouts, such as tennis, you need to wear the device on the hand that holds the racket, and workout data is more accurate when you wear the watch on the preset side.
If the right hand is used to hold the racket, you need to wear the watch on that hand. Go to Tennis/Rowing Machine > Settings > More > Wrist side for settings.

Swimming pool length

Refers to the length of lanes in your swimming pool. The watch calculates swimming data based on the lane length you set.
Set the corresponding lane length for each pool so that the watch can accurately evaluate your swimming data.

Go to Pool Swimming > Settings > More > Lane Length for settings.

Recalibrate

In the treadmill workout mode, if the distance recorded by the watch and the actual distance are still significantly different after multiple calibrations, try recalibrating the treadmill recording algorithm to record treadmill data more accurately.

Go to Treadmill > Settings > More > Recalibrate for settings.

Down swing direction

For some workouts, for example, golf, you need to wear the device on the hand in the direction of down swing direction, so that workout data is more accurate.
If the down swing direction is to the left (i.e. hitting the ball from right to left), the watch needs to be worn on the left hand.
Go to Golf Swing > Settings > More > Down Swing Direction for settings.

Track length & track selection

In the track run workout, it is necessary to set the track length and track lane, which can make the workout data more accurate.
Go to Track run> Settings > More >Track run settings>Runway distance & Track Selection for settings.

Special workout modes – swimming

Workout terms

Trip: Refers to the lane length in pool swimming mode.
Stroke: Refers to a complete stroke motion while you are wearing the watch.
Stroke rate: Refers to the number of strokes per minute.
DPS: Refers to the distance of a complete stroke.

SWOLF: It is an important indicator of swimming scores, which comprehensively evaluates your swimming speed. SWOLF in pool swimming mode = Duration of a single lap (in seconds) + Number of strokes in a single lap. In open-water swimming mode, SWOLF is calculated using a lap distance of 100 meters. A smaller SWOLF score indicates higher swimming efficiency.

Stroke recognition

The watch recognizes strokes in swimming modes and displays the main stroke you use.

similar proportion

Touch screen during swimming

To protect the touch screen from unintentional touches and water interference, the watch automatically disables the touch screen function after you start swimming. In this case, you can control the workout with the watch buttons. After the workout ends or is paused, the watch will update and re-enable the touch screen feature.

Workout GPS positioning

If you select Outdoor workouts, wait until GPS positioning is successful on the Workout preparation screen. Then, tap: green status bar to begin the workout. This allows the watch to record complete workout data and prevents data inaccuracy due to workout tracking loss.

Positioning guide:

If you receive a prompt to update the AGPS after selecting a workout, start the Zepp app on your phone and connect it with the watch to update AGPS. Then, select a workout again. This operation reduces the time spent searching for a signal and avoids search failure.

If, during the positioning process, the GPS signal icon continues to flicker, an open area can offer you faster positioning for a better GPS signal, as nearby buildings may block and weaken the signal, extending the positioning time and even causing positioning failure.

After successful positioning, the red status bar will turn to green color. The GPS signal shows the current GPS signal strength.
AGPS is a kind of GPS satellite orbit information which helps the watch accelerate the GPS positioning process.

Auto workout identification

A total of 8 workout types can be identified, namely walking, indoor walking, outdoor running, treadmill, outdoor cycling, pool swimming, elliptical, and rowing machine.
Automatic workout identification is a process where the watch automatically determines the workout type and records a single workout after related workout characteristics are compiled with and your workout continues for a period.

You can set this in Settings > Workouts > Workout Detection.

Type: After you select a workout type, the automatic identification feature is enabled for the workout.
Sensitivity: Higher sensitivity indicates a shorter recognition time. Recognition time is prolonged if the sensitivity is low. Set as required.

• Continuous workout status monitoring will greatly reduce the battery life. When no workout is selected, the workout identification function is not enabled. If the watch detects an ongoing workout, some data cannot be synchronized with the app.

Voice broadcast during workout

Voice broadcast is support when workout alerts or workout laps are triggered or when you pause, continue, end a workout or go to the workout history. The broadcast content includes workout data summary and operation reminders.
Go to Settings > Sound and Vibration > Voice Broadcast > Workout to enable this feature.

Workout history

When a workout ends, the workout record will automatically be saved to the Workout History app. If you end the workout when the workout time is too short, the watch will ask you whether to save it. Due to the limited storage space, it is recommended that you synchronize the workout data to the app soon after completing a workout; otherwise, the workout data may be overwritten.

Workout history on the watch

Workout history includes the workout data, workout trace (for workouts which support GPS), lap/set data, workout goal completion, and other information.
When a workout ends, the screen will immediately jump to the workout history details page, or you can view recent workout history details in the Activities app. The watch can save up to 100 recent workout records.

Personal Best

The best records from certain types of workouts will be saved, including longest distance, longest workout time, and so on.

Workout history on the app

Workout history on the app shows a wider range of workout data. Dynamic route and sharing features are also supported.

Open the Zepp app, tap    in the upper right corner of the home page, and go to  Workout History.

Physical indicators for workouts

The watch provides a variety of physical indicators for workouts. You can use evaluation scores as a reference for your workouts. These indicators can be viewed in workout records or the Workout status app, including current training load, total recovery time, VO₂ Max, and training effect.
You can find a detailed explanation of current training load, full recovery time, and VO₂ Max in the Workout Status app.

TE

Training Effect (TE) is an indicator for measuring the effect of a workout on improving the aerobic capacity. When you work out while wearing the watch, the TE score starting from 0.0 increases as the workout progresses. The TE score ranges from 0.0 to 5.0, and different score ranges indicate different effects. A higher TE score indicates a greater workout intensity. It signifies a higher body load, but a better TE. However, you should consider whether your body load is too high when the TE score reaches 5.0.

recovery training.
2.0 – 2.9| This workout helps maintain aerobic capacity.
3.0 – 3.9| This workout significantly helps improve aerobic capacity.
4.0 – 4.9| This workout remarkably improves heart lung ability and aerobic capacity.
5| Post workout recovery is required for non athlete user s.

capacity.
5| Post workout recovery is required for non athlete users.

The TE score is evaluated based on your profile, as well as your heart rate and speed during your workout. A low TE score does not indicate a problem during your workout, but instead signifies that the workout is too easy and has no significant effect on improving aerobic capacity (for example, a low TE score for 1-hour of jogging).

How is it obtained?

Once a workout for which heart rate data is monitored ends, the watch displays the TE score of the workout and provides related comments or suggestions. You can also review the TE score of each workout record in the future.

Workout status

Workout status includes training load, full recovery time, and VO₂ Max. The device calculates these metrics based on your personal information and data generated during the workout. As you wear the device and data accumulates over time, we will gain a better insight into your physical and workout data, and the accuracy of evaluation gradually improves.

Maximum oxygen uptake (VO₂ Max)

VO₂ Max indicates the amount of oxygen consumed by the body during maximum- intensity workouts, which is an important indicator of the body’s aerobic capacity. As one of the most important reference indicator for endurance athletes, high-level VO₂ Max is the prerequisite for high-level aerobic capacity.

VO₂ Max is a relatively personal indicator, which has different reference standards for users with different genders and in different age groups. The device evaluates your athletic capacity based on your profile and the heart rate and speed during your workouts. Also, VO₂ Max changes with your athletic capacity. However, everyone has a VO₂ Max value, which varies by individual body conditions.

VO₂ Max values map to seven athletic ability levels: Novice, Elementary, Ordinary, Medium, Good, Excellent, and Superior.

How to obtain the data:

1. Correctly enter your profile in the app.
2. Run outdoors for at least 10 minutes while wearing the watch and ensure that your heart rate reaches 75% of your maximum heart rate.

How to view the data:

You can view the current VO₂ Max in the watch’s workout status app. You can also view the VO₂ Max history and variation trends in the app.

Training load

The training load score is calculated based on your Excess Post-Exercise Oxygen Consumption (EPOC). A higher score indicates a longer workout time and a greater workout intensity. The training load score is calculated as your total training load over the past 7 days, which represents the burden brought to your body from the recent workouts.
There are three training load ranges: low, moderate, and high.
If the training load is low, it will not help much to improve your athletic ability. However, if the training load is relatively high or too high, you may feel too tired, meaning it is not conducive to effectively improving your ability and may also cause injury risks. If you want to continuously improve your athletic ability within a tolerance range, it is recommended that you keep the training load score within the moderate range.
The moderate range of the training load score depends on your recent and long- term workout data, and will become increasingly accurate as you use it.

How to obtain training load:

After the workout mode is enabled on the device, you can obtain the training load of the current workout once you reach the minimum training load level. The training load over the past 7 days can be viewed in the workout status application of the watch.

How to view the training load:

The training load can be viewed in the workout status application of the watch. You can view your historical training load and change trends in the app.

Total recovery time

Total recovery time is the recommended time for the complete recovery of the body. After each workout, recovery suggestions will be offered based on the heart rate of the latest workout to help you better recover and reasonably arrange your workout to avoid injury.

slightly higher intensity training.
19 – 35 hours| You can train as usual and you can prepare to strengthen your regimen again.
36 – 53 hours| Appropriately reducing the intensity of your training will allow you to gain workout benefits from your last training, and you should do recovery workouts to relieve physical fatigu.
54 – 9 6 hours| Proper rest will allow you to get the benefits of the workout from your last high intensity training.

Eject Water

Manually turn on the eject water

Open Watch > Control Center > Eject Water to start the water ejection process. The watch will beep and any remaining water in the speaker will be drained. In the process of ejecting water, you can press any button to exit.
Automatically turn on the eject water after exercise
After the water sports are over, it will automatically start ejecting water, and you can press any button to exit. The exercise record will be displayed after the water is ejected.

Activities and Health

One-tap measurement

This device supports heart rate, blood oxygen, stress, and respiration rate monitoring. You can quickly check the status of various health indicators by using the One-tap measuring feature. The measurement data will be saved under each feature’s data records.
Wake up the watch, press the upper button on the watch face page to go to the app list, and swipe up or down on the screen to select and open the One-tap Measuring app, and then tap to start measurement. Setting the One-tap Measuring app as a quick access app allows you to easily perform one-tap measurements.

Sleep

Sleep quality has an important impact on human health.

When you are wearing the device while sleeping, it will automatically record sleep information. The device can record night sleep and naps. The device identifies sleep based on the sleep schedule. Sleep time that overlaps with the schedule of the day

will be recorded as main sleep of the day. If no schedule is set, sleep during 00:00 to 08:00 will be identified as main sleep by default. Sleep that is more than 60 minutes apart from main sleep will be recorded as naps. Sleep less than 20 minutes will not be recorded.
Wake up the watch, press the upper button on the watch face page to go to the app list, and swipe up or down on the screen to select and open the Sleep app. In the Sleep app on the watch, you can view night sleep duration, sleep stages, sleep score, naps, and other information. More information can be viewed after synchronizing to the app. Setting the Sleep app as a quick access app allows you to easily view the sleep status.

Sleep Schedule

In Sleep Schedule, you can set different bedtime and wake-up time for every day of the week. The device will turn on the sleep mode, prompt you to go to bed, wake you up at the scheduled time, and monitor your sleep based on the scheduled time period, helping you develop good sleep habits.

Open the Sleep app, swipe down to the last page, go to sleep settings, and tap Sleep Schedule to set a sleep schedule. When the phone and watch are connected, you can also open the Zepp app, click in the upper right corner of Home page > tap Sleep > Regularity > Sleep Schedule to complete settings.

Assisted Sleep Monitoring

Open the Sleep app, swipe down to the last page, and go to sleep settings to enable assisted sleep monitoring. If the system detects that you are wearing the device during sleep, it will automatically record more sleep data, such as REM sleep stages.

Sleep Breathing Quality Monitoring

Open the Sleep app, swipe down to the last page, and go to sleep settings to enable sleep breathing quality monitoring. If the system detects that you are wearing the device during sleep, it will automatically monitor your breathing quality to help you better understand your sleep status.
When the phone and watch are connected, assisted sleep monitoring and sleep breathing quality monitoring settings can also be accessed in the Zepp app under Profile >My devices> Amazfit GTR 4 Limited Edition > Health Monitoring>Sleep > Sleep breathing quality monitoring.

PAI

PAI is used to measure a person’s physiological activity and reflect overall physical condition. It is calculated based on a person’s BMP, the intensity of daily activities, and physiological data.
Wake up the watch, press the button on the watch face page to go to the app list, and swipe up or down on the screen to select and open the PAI app. In the PAI app on the watch, you can view information such as your PAI score in the past seven days and today’s PAI score. Synchronize the data to the app to view more information. Setting the PAI app as a quick access app allows you to easily view your PAI score.
By maintaining a certain intensity of daily activities or workouts, you can obtain your PAI score. According to the results of the HUNT Fitness Study*, maintaining a PAI above 100 helps reduce the risk of cardiovascular death and increase life expectancy.

For more information, open the Zepp app and go to   > PAI > PAI Q&A.

• The HUNT Fitness Study is a sub-project of the HUNT study, led by Professor Ulrik Wisloff at the School of Medicine, Norwegian University of Science and Technology. It has lasted over 35 years and involved more than 230,000 participants.

Heart rate

Heart rate is an important indicator of physical condition. Highly-frequent heart rate measurement helps capture more heart rate changes and provide a reference for a healthy lifestyle. To ensure measurement accuracy, you need to wear the watch correctly according to the tips, and ensure that the part next to your skin is clean and free of sunscreen smear.

Wake up the watch, press the button on the watch face page to go to the app list, and swipe up or down on the screen to select and open the Heart Rate app. In the Heart Rate app on the watch, you can view your most recently measured heart rate value, all-day heart rate curve, resting heart rate, heart rate interval distribution and other information. Synchronize the data to the app to view more information. Setting the Heart Rate app as a quick access app allows you to easily measure your heart rate.

When the phone and watch are connected, the following heart rate settings can also be accessed in the Zepp app under Profile >My devices> Amazfit GTR 4 Limited Edition > Health Monitoring.

Manual heart rate measurement

Wake up the watch, press the upper button on the watch face page to go to the app list, and swipe up or down on the screen to select and open the Heart Rate app, and then tap  to manually measure your heart rate. When the measurements are done, the device will stay on the Heart Rate screen and continue to measure and update the data.

Auto heart rate monitoring

1. Open the Heart Rate app, swipe up to the last page, and go to Settings > Auto Heart Rate Monitor to adjust the monitoring frequency. The watch automatically measures your heart rate at the set frequency and records changes in heart rate throughout the day.
2. Heart rate changes are more intense when you are working out. Enable the activity detection feature to allow the watch to automatically increase measuring frequency when it detects an activity so that more heart rate changes can be recorded.

Heart rate alerts

In a resting state (except sleep), the device will notify you if your heart rate goes above or below the limit for 10 minutes.

1. When the Auto Heart Rate Monitoring frequency is set to 1 minute, the heart rate alert feature can be enabled.
2. In the settings for high and low heart rate alerts, the alert value can be adjusted or alerts can be disabled.

Blood oxygen

Blood oxygen is an important physiological indicator of respiration and circulation.
Wake up the watch, press the upper button on the watch face page to go to the app list, and swipe up or down on the screen to select and open the SpO2 app, where you can view your most recently measured blood oxygen value and all-day blood oxygen status. Synchronize the data to the app to view more information. Setting the SpO2 app as a quick access app allows you to easily measure your blood oxygen.
When the phone and watch are connected, the following blood oxygen settings can also be accessed in the Zepp app under Profile > Amazfit GTR 4 Limited Edition > Health Monitoring.

Manual blood oxygen measurement

Wake up the watch, press the upper button on the watch face page to go to the app list, and swipe up or down on the screen to select and open the Blood Oxygen app, then tap to manually measure your blood oxygen. When the measurements are done, the device will stay on the Blood Oxygen screen and continue to measure and update the data.

Auto blood oxygen monitoring

Go to the Blood Oxygen app, swipe up to the last page and go to Settings page to enable Auto Blood Oxygen Monitor. In a resting state, the watch will automatically measure your blood oxygen and record changes in blood oxygen levels throughout the day.

Low blood oxygen alerts

Go to the Blood Oxygen app, swipe up to the last page and go to Settings page to enable Low blood O2 Alert, or can access it in Zepp APP > Profile >My devices> Amazfit GTR 4 Limited Edition > Health Monitoring > Blood Oxygen > Low blood O2 Alert. In a resting state (except sleep), the device will notify you if your blood oxygen falls below the limit for 10 minutes.

1. After Auto Blood Oxygen Monitor is enabled, enable the Low blood oxygen alerts feature.
2. In the settings for low blood oxygen alerts, the alert value can be adjusted or alerts can be disabled.

Precautions for blood oxygen measurement

1. Wear the watch a distance of one finger away from the carpal and remain still.
2. Wear the band tightly, with an appropriate sense of pressure.
3. Place your arm on a tabletop or a stationary surface, with the watch screen facing up.
4. Maintain still during measurement and focus on the measurement.
5. Factors such as hair, tattoo, shaking, low temperature, and incorrect wearing of the watch may affect measurement results, and even lead to measurement failure.
6. The measurement range of the watch is 80%-100%. This feature is for reference only and should not be used as a basis for medical diagnosis. If you feel unwell, please seek medical advice.

Stress

The stress index is calculated based on changes in heart rate variability. It is a reference for health status evaluation. You should rest more when the index is high.
Wake up the watch, press the upper button on the watch face page to go to the app list, and swipe up and down to select and open the Stress app. In the Stress app on the watch, you can view your most recently measured stress value, all-day stress status, stress interval distribution, and pressure status over the last seven days. Synchronize the data to the app to view more information. Setting the Stress app as a quick access app allows you to easily measure your stress.

When the phone and watch are connected, the following stress settings can also be accessed in the Zepp app under Profile > Amazfit GTR 4 Limited Edition > Health Monitoring.

Manual stress measurement

In the Stress app, tap   to manually measure your stress. When the measurements are done, the device will stay on the Stress screen and continue to measure and update the data.

Auto stress monitoring

Open the Stress app, swipe up to the last page, and go to stress settings to enable Auto Stress Monitoring. This will automatically measure the stress every five minutes to show you stress changes throughout the day.

Stress Relief Reminder

In a resting state (except sleep), the device will notify you if your stress level goes above the limit for 10 minutes.

1. After Auto Stress Monitoring is enabled, enable the Stress Relief Reminder feature.
2. In stress settings, enable Stress Relief Reminder, and then you can receive reminders.

Activity

Maintaining a certain amount of daily activity is very important for your physical health.
Wake up the watch, press the upper button on the watch face page to go to the app list, and swipe up or down to select and open the Activity app. The daily activity is composed of three main indicators: Activity Indicator (which can be set as steps or calories), fat burning, and standing. In Activity on the watch, you can view the all-day activity distribution chart. Setting the Activity app as a quick access app allows you to easily check the progress of your main indicators.
The watch also automatically records other activity data, including resting consumption, walking time, sitting time, Stair climbing, and distance, which can be viewed in the Activity app.

Goal notifications

The watch displays a notification when any main indicator of the daily activity reaches the set target value.
1. Open the Activity app, swipe up to the last page, and go to activity settings to enable Goal Reach Notifications. When the phone and watch are connected, these settings can also be accessed in the Zepp app under Profile

My devices> Amazfit GTR 4 Limited Edition > Notifications and Reminders > Goal notifications.

2. In Activity settings, you can also set daily goals for steps and calories. While the phone is connected, these settings can also be accessed in the Zepp app under Profile > More > My Goals.

Stand Reminders

To reduce the harm caused by remaining sedentary, the watch encourages you to move and be active every hour while you are awake. The daily goal is that you are active for 12 hours a day.
While you are awake, if no activity detected for more than one minute during the first 50 minutes of an hour, the watch will remind you to move around. When you receive a stand reminder, you can still achieve the standing goal of the current hour as long as you move before the next hour arrives.
Open the Activity app, swipe up to the last page, and go to activity settings to enable Stand Reminders. When the phone and watch are connected, these settings can also be accessed in the Zepp app under Profile > My devices> Amazfit GTR 4 Limited Edition > Notifications and Reminders > Stand Reminders.

Cycle Tracking

Tracking the menstrual cycles helps you understand your own physiological rhythms.
Wake up the watch, press the upper button on the watch face page to go to the app list, and swipe up or down on the screen to select and open the Cycle Tracking app. In the Cycle Tracking app on the watch, you can view information such as menstrual cycle records and predictions. More information can be viewed after synchronizing the data to the app. Setting the Cycle Tracking app as a quick access app allows you to easily view your menstrual cycle state and records.
Before using the Cycle Tracking app, you need to enter the start time of your most recent period, the duration of the period, and the duration of your menstrual cycle. You can also enter this data on the Zepp app and synchronize it to the watch. You can also modify these settings and data in the Zepp app when needed.

When the phone and watch are connected, the following settings can also be accessed in the Zepp app by clicking tap in the upper right corner of Home page > Cycles > Settings.

Manually record the menstrual cycle

In the Cycle Tracking app, tap to manually record the menstrual cycle tracking data.

1. If you have not recorded this menstrual cycle, tap to record the start date of the current period.

2. If you have recorded this menstrual cycle, tap to record the start date of the next period.
3. If you need to extend your period after the set end time, you can tap the record again within 30 days, as the last period has not ended, or synchronize the data to the app, and then modify it.

Menstrual cycle prediction

The Cycle Tracking app will intelligently predict your period, fertile period, and ovulation day based on your data. This feature is not a substitute for contraception or medical advice.
Open the Cycle Tracking app, swipe up to the last page, and enter the menstrual cycle settings to start the menstrual cycle prediction.

Menstrual cycle reminder

Before the start of your period, the watch will send you a notification at 9:00 PM on the set date.

1. When menstrual cycle prediction is turned on, enable the menstrual cycle reminder.
2. For the period reminder and ovulation date reminder that you set in the Cycle Tracking app, you can adjust the reminder date or disable the reminder feature.

Breathe

It helps you relieve stress by guiding you to breathe slowly and deeply.
Wake up the watch, press the upper button on the watch face page to go to the app list, and swipe up or down on the screen to select and open the Breathe app. Tap to start breathing relaxation. Setting the Breathe app as a quick access app allows you to easily start breathing relaxation.

Voice Features

Offline voice

1. Offline voice allows you to control most of watch features even though the watch and phone are disconnected.

Offline voice wake-up mode:

Go to Settings > Preferences > Offline Voice Control > Wake-up Mode.

(1) Respond in 5 seconds after you turn your wrist.
(2) Respond in 5 seconds after the screen lights on.
(3) Respond during screen light-up.

2. Select “Respond in 5 seconds after you turn your wrist” and “Respond in 5 seconds after the screen lights on” to enable offline voice. After turning your wrist or lighting the screen, the “recognizing offline voice” icon appears. Then, you can run offline voice commands to use a specific feature.

3. If you select Respond during screen light-up, you can use offline voice commands directly before the recognizing offline voice icon appears.
4. Offline voice (overseas version) supports 4 languages: Simplified Chinese, English, German, and Spanish. Go to Settings > Preferences > Offline Voice Control > Offline Voice Language to modify the language.
5. Offline voice commands:

Go to Settings > Preferences > Offline Voice Control > View All Voice Commands to see all offline voice commands the watch supports.

(1) You can directly say “Open + application name”, such as: “Open Heart Rate”,
“Open Stress”, “Open Blood Oxygen”, and “Open Temperature”.
(2) When the watch is playing music, you can say “Start playing”, “Pause playing”, “Play previous song, “Play next song”, “Repeat song”, and more.
(3) When you want to work out, you can say “Start walking”, “Start outdoor running”, “Start outdoor cycling”, “Start climbing”, and more.
(4) When you want to set an alarm or timer, you can say “Alarm at 8 o’clock” or “Timer for 1 minute”.

Alexa

1. With your watch connected to your phone, start the Zepp app, choose Profile > Add accounts > Amazon Alexa, and log in to the Amazon account to authorize Alexa. After successful authorization, you can start Alexa by pressing and holding the upper button for one second, or using the shortcut card.
2. Zepp accounts registered in the following countries and regions can use Alexa:

United States, United Kingdom, Ireland, New Zealand, Canada, Germany, Austria, India, Japan, Australia, France, Italy, Spain, Mexico, Brazil.

3. Alexa supports 14 languages: Canadian French, Canadian English, Indian English, Mexican Spanish, Brazilian Portuguese, German, Italian, Japanese, France French, Australian English, American Spanish, American English, British English, and Spain Spanish. Go to Settings > Preferences > Alexa Language to modify the language.
4. Alexa support skills include Smart home commands, Weather, Alarm, Timer, Reminder, Jokes, Lists, Search, Translation, etc. When “Listening” is displayed, try saying:

Ask the time: “What time is it?”
Check dates: “Alexa, when is [holiday] this year?” or “What is the date?”
Check the weather: “Alexa, what’s the weather like?” or “Alexa, will it rain today?” or “Alexa, will I need an umbrella today?” or “What is the weather in Seattle today?”
Set an alarm: “Alexa, set an alarm for 7 a.m.” or “Alexa, wake me up at 7 in the morning.”
Cancel an alarm: “Alexa, cancel my alarm for 2 p.m.”
Set a timer: “Alexa, timer” or “Alexa, set a timer for 15 minutes.” or “Alexa, set a pizza timer for 20 minutes.”
Create a reminder: “Alexa, reminder” or “Alexa, remind me to check the oven in 5 minutes.”
Ask for a joke: “Alexa, tell me a joke.”
Create a shopping list: “Alexa, add eggs to my shopping list” or “Alexa, I need to buy laundry detergent.”
Check your shopping list: “What is on my shopping list?”
Create a to-do list: “Add swimming to my to-do list.”
Check your to-do list: “What’s on my to-do list?”
Check calendar events: “Alexa, what’s on my calendar for tomorrow?”
Ask a general question: “Alexa, how tall is Yao Ming?” or “Alexa who is Steve Jobs?”
Translation: “Alexa, how do you say Hello in French?”
Choose between female- and male-sounding voices: “Alexa, change your voice”

Multimedia Features

Local music playback:

Support playing the local music stored in the watch through the watch speaker or connect to the Bluetooth audio headset/stereo.
1. Add songs: Open the Zepp app and go to Profile >My devices> Amazfit GTR 4 Limited Edition > App settings > Music. On the Music page, select .mp3 music files to transfer from your phone to the watch. Once the transfer is completed, you can

play music on the watch.

Note: To transfer files, you need to connect to the watch’s hotspot. While connected to the hotspot, the phone cannot connect to other networks. After the file transfer is completed, the watch will turn off the hotspot, and the phone will automatically connect to the previous network.
The Music page displays the name and composer of a song. On this page, you can play the previous song, play the next song, pause, change the playback mode, and adjust the volume. Tap “+” to add songs to My Favorites.

3. On the Music home page, swipe up to the second Music page to switch the music mode, view the playlist, connect to Bluetooth audio devices, and more.

Music remote controller:

Keep the watch connected with your phone. When playing music on your phone, you can start or pause the music, switch to the previous or next song, and perform other operations on the music app of your watch.

Modifying settings on an Android phone:

Keep the watch connected to your phone. Open the Zepp app, go to Profile > My devices> Amazfit GTR 4 Limited Edition > Notifications and Reminders. At the top of the page that appears, tap the
“Access to read notifications not enabled” message to go to the Notification Settings page, and grant notification permission to the Zepp app. If this message is not displayed, the permission has been granted.

Note:
To enable this feature on an Android phone, you need to add the Zepp app to the allowlist or auto-run list in the phone’s background so that the app always runs in the background. If the Zepp app is terminated by the phone’s background process, the watch will be disconnected from your phone and you will be unable to control music playback.

Voice memos

The watch can record, play recordings, manage recording files, and store files locally or transfer them to the phone.
1.Wake up the watch, press the upper button on the watch face page to go to the app list, and swipe up or down on the screen to select and open the Voice Memos APP,  on the bottom of the Voice Memos homepage, tap to start recording, and tap while recording to end it and save the recording file.

2. On the bottom of the Voice Memos homepage, tap to enter the recording list page, where you can play and delete the recording files.

3. With the watch connected to the phone, open the Zepp app, go to Profile

My devices> Amazfit GTR 4 Limited Edition > Voice memo, and select the recording file to transfer to the phone. After the transfer is completed, you can play the recording on the phone.

Note: To transfer files, you need to connect to the watch’s hotspot. While connected to the hotspot, the phone cannot connect to other networks. After the file transfer is completed, the watch will turn off the hotspot, and the phone will automatically connect to the previous network.

Convenient life

Membership Card

How to add the membership card to the watch:

1. Enter the membership card page, tap “Add” to go to the scan page, and align the QR code/barcode of your membership card with the scan box.
2. Or, you can take a screenshot or photo of your membership card barcode/QR code in advance and save it in Photos in your mobile phone. Tap “Photos” and select the saved membership card barcode/QR code photo.
3. After successful scanning, enter your membership card name and card number, select the preferred color of the card face, tap the “Save” button, and your membership card is added successfully.

Notes:
Due to the limited storage in the watch, only a maximum of 20 membership cards can be added to the same account.
We only support Code 128, Code 39, QR code, UPC A, EAN 13, and EAN 8.

Watch Apps

Apps refer to watch features that can be used separately, such as workouts, heart rate, and weather.
Wake up the watch, press the upper button to go to the app list, swipe up or down on the screen to browse the app list, and tap an app to start it.

Alarm

You can add alarms in the Zepp app and on the watch. Up to 10 alarms can be added. Alarm supports repeat wake-up and smart wake-up. When Alarm is enabled, the watch will calculate the best time to wake you from light sleep within 30 minutes before the set time.
The watch will remind you when the set alarm time arrives, and you can choose to turn it off or reminder you later. If you choose Remind Me Later, the watch will remind you after 10 minutes. You can only use this feature 5 times per alarm. If you have not performed any operation, the watch reminds you later by default.

Calendar

Keep the watch connected to your phone, open the Zepp app, and go to Profile

My devices> Amazfit GTR 4 Limited Edition > App settings > Calendar, where you can create or edit schedule. You can also synchronize up to 200 events for today and the next 30 days to the watch. At the same time, the Zepp app will read events from the system calendar of the phone and synchronize them to the app’s event list, but app events can not be synchronized to the system calendar of the phone.
When you tap the calendar on the watch to go to the event list, it will display the events for today and the next 30 days. When the specified time arrives, an event reminder will pop up on the watch, which you can choose to turn it off or remind you later. If you choose Remind Me Later, the watch will remind you after 10 minutes.

To-Do List

Keep the watch connected to your phone, open the Zepp app, tap Profile >My devices> Amazfit GTR 4 Limited Edition > App settings > To-Do List, and you can create or edit to-dos and set a reminder time or repetition for to-dos. Up to 60 to-dos can be added.
When the specified reminder time arrives, the to-do reminder will pop up on the watch, after which you can perform operations such as Done, Remind me in 1 hour, Remind me later, and Ignore.

Pomodoro Tracker

The Pomodoro Tracker app allows you to manage time scientifically and set the concentration time in a cycle. This allows you to strike a balance between your work and breaks with minimum interruptions and make time management more intuitive and effective. By default, each work period lasts 25 minutes and is followed by a 5-minute break. You can create the custom work time and break time. During the work time, the watch will automatically enter the DND mode.

World clock

In Profile >My devices> Amazfit GTR 4 Limited Edition > App settings > World clock, you can add clocks of different cities in the Zepp app, and then synchronize them to the watch to view the time in those cities in real time. Up to 20 different cities can be added. At the same time, the watch provides some default cities, so that you can quickly add cities to the world clock list on the watch.

Stopwatch

The stopwatch can time up to 23 hours, 59 minutes, and 59 seconds with an accuracy of 0.01 seconds. The watch can count up to 99 times during the timing. While counting, the time difference between the current and last counts is also recorded.

Countdown

The Countdown app provides 8 shortcuts for quick setup. Also, you can manually set a Countdown with a maximum time of 23 hours, 59 minutes and 59 seconds. The watch will remind you when the Countdown ends.

Camera Remote

When the phone’s camera is turned on, you can take pictures remotely using the watch. You can choose to take a photo immediately or take a photo with a delay of 3 seconds. If you choose the 3-second delay, the phone will take a photo 3 seconds after you tap the camera button.
If the phone is an iOS device, you need to pair the watch with the phone’s Bluetooth before use. If it is an Android device, in the Zepp app, go to Profile >My devices> Amazfit GTR 4 Limited Edition > Lab > Camera Settings and complete the settings as instructed.

Weather

In the Weather app, you can view the following:

• Today’s weather (including temperature, temperature curve, weather conditions, wind force, and humidity).
• Air quality (only applicable to cities in China).
• Daily life index, including outdoor workouts index, UV index, pollen allergy index (only applicable to cities in China), fishing index (cities outside China), and car wash index.
• Weather forecast for the next 5 days.

The weather data needs to be synchronized through the mobile network. Therefore, you need to keep the watch connected to your phone to keep weather information up to date.

• You can add up to 5 locations and temperature units (Celsius/Fahrenheit) in the Zepp app.
• You can view the locations that have been added on the watch.

Sun & Moon

In the Sun & Moon app, you can view the following:

• Sunrise and sunset time.

Tap the reminder button on the page to enable/disable the sunrise/sunset reminder.

• Moonrise and moonset time, and moon phase.
• For tides, you can view hourly tidal data in coastal and port areas.

Compass

In the Compass app, complete calibration following the animated instructions.
After the compass calibration is completed, the bearing and angle pointed to by the current 12 o’clock direction on the watch face will be displayed.
Tap the button in the middle of the screen to lock the current 12 o’clock position. Then, when you change the direction, the interface will display the angle between the new 12 o’clock direction and the previous 12 o’clock direction.

Barometer

In the Barometer app, you can view the following:

• Air Pressure Page

Displays the current barometric pressure of your current location and the pressure curve over the last 4 hours.
On the air pressure page, you can enable the storm alert feature and set a threshold value. Once enabled, the system will alert you when a sudden change in air pressure is detected.

• Altitude Page

Displays the altitude value of your current location and the altitude curve over the last 4 hours.
Support calibration through manual elevation input and positioning.

Temperature

The built-in watch sensor measures the real-time temperature of the contact position. For the most accurate temperature measurement, make sure the bottom shell of the watch is fully in contact with your wrist for more than 10 minutes. When worn on the wrist, the watch measures skin temperature, which is impacted by environmental and other factors. It is not the same as the axillary temperature. Open the Zepp app and modify the temperature unit in Profile > Settings > Units.

App installation and uninstallation

You can download and install more apps in the app store.

1. Installing an app: Keep the watch connected to your phone. Open the Zepp app, go to Profile>My devices > Amazfit GTR 4 Limited Edition > App settings>More>Go to store>App store, select a target app to download and install it, or update an installed app to the latest version.
2. Uninstalling an app: With the watch and phone connected, in the Zepp app, go to Profile > Amazfit GTR 4 Limited Edition > App store > Mine > Installed, tap More to enter the app management page, and then tap the delete button and select apps to uninstall them.

Watch Settings

Units

Keep the watch connected to your phone, open the Zepp app, and go to Profile > More > Settings > Units, where you can set the units for distance, weight and temperature. During data synchronization, the watch automatically follows the settings in the app.

Time format

Keep the watch connected to your phone. During data synchronization, the watch automatically follows the system time and time format of your phone, and displays the time in a 12-hour or 24-hour format.
If you select the 12-hour or 24-hour format on the watch in Settings > Watch Face & Time, the time format of the watch will not change with the mobile phone once set.

Date format

The default date format displayed on the watch is “year/month/day”. In Settings > Watch Face & Time, you can change the date format to “month/day/year” or
“day/month/year”.

WLAN settings

You can select and join a wireless network in the watch under Settings > WI- FI. To join a password-protected wireless network, open the Zepp app, select the required network on the watch while keeping the watch and the phone connected, join the wireless network, and enter the password in the pop-up field on the Zepp app.

Bluetooth settings

On your watch, go to Settings > Bluetooth, find your Bluetooth audio device, and tap Pair.
Note: If you cannot connect your watch to a paired Bluetooth device, cancel pairing and pair them again.

Setting a password

You can set the watch password in the watch under Settings > Preferences > Off-wrist Lock. When the system detects that you are not wearing the watch, it will automatically lock the watch with a password. You will need to enter the password before you can continue to use the watch.

Wearing direction

In the watch, go to Settings > Preferences > Wearing Direction to change the orientation between the buttons and the watch face, so that you can wear the watch as you like.

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