1. Support mobile phone system: IOS 8.0 or above / Android 4.4 or above 2. Master: Nordic n52832+TI1291 3. Waterproof grade: IP67 4. Display screen: 0.96 inch TFT screen, resolution: 80*160dbi 5. Bluetooth version: 4.0 6. Material: PC+ABS+PU 7. Battery: polymer battery 8. Battery capacity: 100 mAh 9. Standby time: 30 days, about 5 days in normal use 10. Charging method: USB direct charging 11. Charging time: 2 hours 12. Functions: body temperature monitoring, blood pressure monitoring, electrocardiogram monitoring, heart rate monitoring, heart rate alarm, AI auxiliary diagnosis report, sleep monitoring, alarm clock reminder, sedentary reminder, SMS reminder, WeChat reminder, QQ reminder, incoming call reminder, turning wrist to brighten the screen , reject calls, exercise running mode, USB direct charging, find bracelet, exercise pedometer, exercise track, calories, weather forecast, WeChat exercise, information storage, etc. 13. APP supports languages: Chinese, Traditional, English, Japanese, German, Russian, Italian, French, Spanish, Portuguese, Thai, Czech, Greek, Polish, Vietnamese, Turkish, Romanian, Hungarian English, Danish, Finnish, Arabic, Ukrainian, Hebrew, Persian, Irish, Slovak, Norwegian, Korean, Croatian, Swedish 14. The watch supports languages: Chinese, English 15. Product size: 225x20x13mm 16. Product weight: 30g