Fangrui Product Details 1. Q71 Pro 1.28 Inch Tft Screen Steel Strap Smart Watch, Support Bluetooth Call Menstrual Cycle Reminder 2. Bluetooth: Bluetooth 5.0 Version 3. Battery Type: Polymer Battery 4. Battery Capacity: 240mah 5. Charging Method: Charging Stand 6. Charging Time: 1.5 Hours 7. Battery Life: More Than 15 Days In Standby 8. Cpu: Realtek8762ck+bk3266 9. Sensor: Triaxial Sensor 10. Heart Rate Chip: 3301 11. Waterproof Level: Life Waterproof 12. System Compatibility: Support Android 4.4, Ios 8.4 And Above Systems 13. Screen Size: 1.28 Inches Tft, Resolution: 240*240 14. Material: Zinc Alloy 15. The Watch Supports Languages: English, Simplified Chinese, Japanese, German, French, Spanish, Russian, Italian, Portuguese, Turkish, Czech, Greek, Vietnamese, Polish, Dutch, Latin, Romanian , Traditional Chinese, Thai, Danish, Korean, Arabic, Hebrew, Hungarian 16. App Supports Languages: Danish, Ukrainian, Russian, Bokmal, Norwegian, Indonesian, Turkish, Hebrew, Greek, German, Italian, Latin, Czech, Japanese, French, Polish, Persian, Thai, Swedish, Simplified Chinese, Traditional Chinese, Romanian, Finnish, English, Dutch, Portuguese, Spanish, Vietnamese, Arabic, Korean 17. Functions: Bluetooth Calling, Music Playback, 24-hour Heart Rate Monitoring, Massive Dial Switching, Full Touch, Smart Photo, Physiological Period, Password, Calculator, One-key Sos, Adjustable Screen Time, Call Reminderrejection, Message Storage, Multi-sport Mode, Changing Standby Interface, Stopwatch, Address Book, Call Record, Exercise Record (pedometer, Calorie Burn, Mileage), Information Reminder, Etc. 18. Dimensions: 26x45x13mm 19. Weight: 50g