About Product
1. Bluetooth version: BLE 4.0
2. Battery capacity: 90mAh
3. Standby time: about 3 weeks
4. Working time: about 1 week
5. System requirements: Android 5.0 and above IOS 9.0 or above

Features
1. Step/calorie/heart rate/mileage/continuous heart rate monitoring/blood pressure/stopwatch/sports mode/calendar/dial to listen to the phone/shake the photo/find the phone/information view/social sharing reminder/sleep detection/alarm/task reminder