1. Waterproof rating: IP68 2. Bluetooth distance: greater than or equal to 10M 3. Battery life: 5--7 days (depending on the usage scenario) 4. Charging time: less than or equal to 2H 5. With smart phone system: Android 5.1, IOS 8.2 and above support Bluetooth 4.4 BLE system 6. CPU: Realtek8762CK, BK3266 7. RAM (random access memory): 128KB 8. ROM (read only memory): external 64BIT 9. Heart rate sensor: 3300 10. Acceleration sensor: SC7A20 11. Bluetooth: BLE5.0 12. Display: 1.57 inch IPS display, resolution: 200*320 13. Battery: 180mah polymer battery 14. Charging interface: 2PIN thimble interface 15. Watch firmware language: Simplified Chinese, Traditional Chinese, English, French, German, Japanese, Spanish, Italian, Russian, Czech, Portuguese, Turkish, Greek, Vietnamese, Thai, Arabic, Polish, Dutch, Latin Denmark, Romania 16. APP language: Simplified Chinese, Traditional Chinese, English, French, German, Japanese, Spanish, Italian, Russian, Czech, Portuguese, Turkish, Greek, Vietnamese, Thai, Arabic, Polish, Dutch, Latin Denmark, Romania 17. Function: Bluetooth call, watch phone book, exercise monitoring, sleep monitoring, heart rate detection, blood pressure detection, breathing exercise, exercise mode, body temperature measurement, alarm clock, sedentary reminder, target reminder, call/message reminder, stopwatch, remote photo , Music control, weather, etc. 18. Material: aluminum alloy 19. Strap specification: 22mm silicone strap (removable and replaceable) 20. Dimensions: 46.2x30.4x10mm 21. Weight: 34g