Q71 Pro 1.28 inch TFT Screen Steel Strap Smart Watch, Support Bluetooth Call Menstrual Cycle Reminder 1. Bluetooth: Bluetooth 5.0 version 2. Battery type: polymer battery 3. Battery capacity: 240mAh 4. Charging method: charging stand 5. Charging time: 1.5 hours 6. Battery life: more than 15 days in standby 7. CPU: Realtek8762CK+BK3266 8. Sensor: Triaxial sensor 9. Heart rate chip: 3301 10. Waterproof level: life waterproof 11. System compatibility: support Android 4.4, IOS 8.4 and above systems 12. Screen size: 1.28 inches TFT, resolution: 240*240 13. Material: Zinc Alloy 14. 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 15. 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 16. 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. 17. Dimensions: 26x45x13mm 18. Weight: 50g