HT5 1.57 inch IPS Touch Screen IP68 Waterproof Smart Watch, Support Sleep Monitoring Heart Rate Monitoring Body Temperature Monitoring Bluetooth Call 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, callmessage 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