1. Product model: M2102W1
2. Screen: 1.6 inches AMOLED resolution 320*360
3. Watchband material: TPU
4. Adjustable length of strap: 125-205mm
5. Sensor Optical heart rate sensor (including blood oxygen), acceleration sensor, gyroscope, geomagnetic sensor, ambient light sensor
6. Waterproof rating: 5ATM
7. Wireless connection: Bluetooth5.0 (Bluetooth Low Energy)
8. Battery: 225mAh lithium ion polymer battery
9. Typical usage mode: 12 days battery life
10. Satellite positioning: support BDS/GPS/GLONASS/GALILEO
11. Working temperature: -10 to 45 degree Celsius
12. System language: support simplified Chinese, English
13. Support system: Android 5.0 or iOS 10.0 and above
14. Functions: sleep monitoring, blood oxygen monitoring, heart rate monitoring, 117 sports modes, timer, alarm clock, weather, stopwatch, call reminder, message reminder, find mobile phone, flashlight, compass, Alipay scan code payment, etc.
15. Product net weight: 31g
16. Product size: 39.1*34.4*9.98 mm (without watchband)