Jsbaby H40 Smart Watch for Men Women User Manual

**Jsbaby H40 Smart Watch for Men Women User Manual

**

FAQ

Can I replace the band? What kind of bands fit it?

Yes, the strap of this smart watch can be replaced, if you want to change the strap, the size of this watch band is 20mm, ayou can choose according to the size.

Does the smart watch come with a charger? How long does it take to full

charge?

Yes, there is a magnetic suction fast charging wire that takes two hours to fully charge and can be used for 7 days.

Can you use your phones GPS?

Yes, you can choose to start outdoor activities, running, swimming, biking, walking and more on the Dafit app, keep track of your steps and record your walking route, provided the location is turned on.

Is the smartwatch dust proof and waterproof?

Does this have a step counter?

Pedometers and digital fitness trackers can help count the steps. Smart devices will count the steps for all activities that generate steps, such as walking, running, going up and down stairs and even doing housework.

Does it measure in miles as well as steps?

Yes. it will tell you how far you move and how many steps you walked.

Can it check overnight heart rate and spo2?

Yes, it can be measured and is very accurate and detailed.

Can smartwatch vibrate on high heart rate?

Yes, it has a security warning. The smartwatch will tell you when your heart rate is too high. You can set the maximum limit of your phone Answer yourself. When this limit is exceeded or not reached, this smart watch will vibrate to protect you.

Android level required?

(1) For better experience, please download the latest Dafit app: (2) To install the App. please make sure that the operating system of your mobile phone is Android 5.1 ( and above), or ios 8.0 ( and above).

How can I connect the watch or bracelet?

‘Why does Bluetooth keep disconnecting?

(1) Make sure the distance between the phone and device does not exceed 7 m, otherwise the signal may be too weak: (2) Make sure there is nothing between the phone and device that might obstruct the Bluetooth signal, for example, your body or metal objects such as jewelry: (3) Make sure the device battery has sufficient power to use Bluetooth and keep screen lit: (4) Make sure your phone's Bluetooth is working. Try closing all apps, and then disable and reenable Bluetooth.

How is Heart Rate measured?

The watch strikes a beam of light onto the skin. As the heart pumps blood, blood vessels are filled with blood. Since blood tends to absorb Answer green light and reflect red light, the heart reflects lights of different colors when it contracts and relaxes. The watch records the Heart Ratesimply by detecting these reflected lights.

‘Why does Blood Pressure measured with the watch deviate from that measured

with a sphygmomanometer?

The deviation between the watch and the sphygmomanometer in terms of the Blood Pressure measured is caused by multiple factors.The sphygmomanometer measures the Blood Pressure in the brachial artery while the watch measures the Blood Pressure in the two main branches of the arterioles. If you use the watch and a sphygmomanometer to measure the Blood Pressure at the same time, as the blood flow in the arteries is in a centrifugal direction, the cuff puts pressure on the area below the middle of your elbow when the sphygmomanometer is measuring, so that the blood cannot lowsmoothly to the arterial branches below temporarily. The increased tension in the blood vessels will cause a larger deviation of upper and lower blood pressure measurements.

How do I receive notifications on my watch?

How can I check the battery level of the watch?

How does this smartwatch download music?

The smartwatch cannot download and store music. This smart watch is only suitable for controlling the music switch or playback pause of the phone, the real music is played by the phone, and the sound is transmitted through the smart watches.

How to improve the accuracy of the smartwatches' data tracking?

Do you have to always have the app open for the watch to work properly?

You don't have to keep an app open on your phone. The smartwatch is connected to Bluetooth, and as long as Bluetooth is turned on, the smartwatch can use all the time.

Do the smartwatches tell you when you ovulate?

Yes, this smart watches pay attenion to women, there are three reminder modes of menstrual management, pregnancy preparation, and gender health. First of all, you need to set the corresponding time and day on your phone, and then open the need to remind mode, and the smartwatch will remind you one day before the date you need to remind.

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