1. Material: metal, leather, electronic original price 2. Functions: exercise mode, activity record, lock screen control, exercise data, time display, heart rate monitoring, power display, blood oxygen/blood pressure/heart rate/sleep monitoring, call reminder, message reminder, alarm clock reminder, call function, weather push , music control, stopwatch, alarm clock 3. Support system: Android 5.0 or above, iOS10.0 or above 4. Supported languages: English, Chinese, French, German, Spanish, Italian, Russian, Portuguese, Turkish, Vietnamese, Thai, Arabic, Polish, Dutch, Persian, Greek, Malay 5. Main control chip: 6621AG 6. Memory: 64Mb 7. Bluetooth version: 5.2 8. Screen display: 1.32-inch TFT screen 9. Resolution: 360x360 10. Battery capacity: 250mAh lithium battery 11. Charging time: 3 hours 12. Standby time: 14 days 13. Use time: about 7 days 14. Operation mode: touch + button 15. Charging interface: wireless charger 16. Sensor: G-sensor 3 axis 17. Waterproof grade: IP67