1. Bluetooth Chips: Nodic Nrf51822.
2. Waterproof Rating: IP66.
3. Compatible with Android 4.4 and above, iOS 8.0 and above.
4. APP Name: WearFit.
5. Dynamic heart rate monitoring.
6. Blood pressure & blood oxygen monitor.
7. Touch screen function.
8. Special Features: Sleep monitor, Record for pedometer, Calorie, Miles, Time, Sedentary reminder, Trends of sport, clock.
9. Other functions: Call / SMS, WeChat, QQ APP Reminder, Alarm Clock.
10. Display Screen: 0.66 inch OLED Display.
11. Built-in 80mAh battery.
12. Charge about 2 hours, long standby time about 10 days.