Fangrui Product Details 1. E21 1.69 Inch Color Screen Smart Watch, Ip68 Waterproof,support Heart Rate Monitoringblood Pressure Monitoringblood Oxygen Monitoringsleep Monitoringfemale Physiology Reminder 2. About Product 3. Battery Capacity: 200mah 4. Waterproof Level: Ip68 Waterproof 5. Bluetooth Version : Bluetooth 5.0 6. Resolution:240*280 7. Charging Method:magnetic Charging 8. System: Android System 4.4 Version Or Above,ios System 8.0 Version Or Above 9. Standby Time:about 20-25 Days 10. Usage Time:about 7 Days 11. App:tefiti 12. Watch Support Languages:chinese, English, Korean, Japanese, German, Spanish, French, Italian, Portuguese, Arabic, Russian, Dutch, Indonesian, Hindi, Polish, Turkish 13. App Support Languages: 14. Android: English, Arabic, Czech, French, German, Indonesian, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Traditional Chinese, Turkish, Romanian, Hindi 15. Iosenglish, Arabic, Czech, French, German, Indonesian, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Traditional Chinese 16. Function 17. Heart Rate Monitoring,blood Pressure Monitoring,blood Oxygen Monitoring 18. Step,distance,calorie 19. Sleep Monitoring (sleep Time, Sleep Quality) 20. Multi-sport Modes:walking,running,cycling,skipping Rope,badminton,basketball,football,swimming Etc. 21. Social App Message Reminder:qq, Wechat, Nailing, Wang Zhen, Sina Weibo, Lnstagram, Linkeln, Snapchat, Bursts, Facebook, Skype, Twitter, Whatsapp, Line, Kakaotalk 22. Stopwatch,sedentary Reminder, Alarm Clock Reminder, Drinking Water Reminder, Shake Photo, Female Physiology Reminder 23. Wechat Sports Access, Sports Goal Setting, Fitness Information Sharing 24. Weather, Raise Hands And Brightening Screen, Find Mobile Phone, Call Rejection, Do Not Disturb Mode