Take Lexin Bracelet 5 as an example, it has no power off button, and the bracelet will automatically turn off when it runs out of power. Lexin Bracelet 5 has 15 exercise modes, built-in heart rate sensor, which can give heart rate warning, in addition to sleep monitoring and offline payment functions.

Precautions for using bracelets:

1, Lexin bracelet 5 has a call reminder function. It is normal for the bracelet to vibrate for 5 seconds. The delay of 5 seconds is to prevent telephone harassment.

2. The bracelet can be connected to the mobile phone via Bluetooth, and the time of the bracelet will be automatically updated.

3. The bracelet cannot be found in the Bluetooth list of the mobile phone. It may be that the distance between devices is too far, which exceeds the Bluetooth transmission distance.

4. After wearing the bracelet, move 10 step or more to start it automatically.

5. When using the heart rate function, the sensor needs to be attached to the skin before it can be used. If the heart rate cannot be measured, the sensor may be damaged.

Data expansion: Lexin was established in 2002, focusing on smart health, and currently focuses on two major directions: "smart wear" and "mobile medical care". Its products include wearable sports bracelets (watches), electronic health scales, fat measuring instruments, electronic sphygmomanometers and other hardware devices, providing integrated software and intelligent hardware solutions for sports slimming, chronic disease management and other fields. In 20 14, Lexin Medical cooperated with WeChat strategically and became the first intelligent hardware brand to access WeChat.