1. Screen: 1.32 inches, Resolution: 360 x 360 2. System support: Android 5.0 and above, IOS 9.0 and above, support Bluetooth 4.0 3. Charging time: about 2H 4. Standby time: 5-7 days for normal use, 30 days for standby 5. Charging method: Magnetic suction 6. Battery Type: Lithium Polymer 7. Battery capacity: 200mAh 8. Main functions: Bluetooth call, encoder, body temperature, heart rate, blood pressure, blood oxygen, sleep, step counting, exercise, calorie consumption, raising hand to brighten the screen, turning the wrist to brighten the screen, alarm clock, incoming calls, text messages, WeChat, QQ, Stopwatch, music control, remote control photography, weather, screen brightness adjustment, APP movement track
