1. Battery capacity: 91 mAh
2. Bluetooth version: Bluetooth 4.2
3. Bluetooth connection distance: about 10m
4. Up to 7 days in a typical scenario
5. Charging time: about 100 minutes
6. Waterproof rating: support 5ATM waterproof
7. Compatible with Android 4.4, iOS 9.0 and above
8. Function: message reminder, blood oxygen detection, sleep monitoring, heart rate detection, timer, remote control photo, weather push, etc.
9. Plug in the USB interface to charge, easy to use
10. Size: 56x18.5x12.5mm
11. Weight about 12g (without wristband)
