T90 1.91 inch IPS Screen IP67 Waterproof Smart Watch, Support Bluetooth Call Non-invasive Blood Sugar 1. Functions: Bluetooth calls, non-invasive blood sugar measurement, METO function, body temperature monitoring, blood oxygen monitoring, breathing training, stress monitoring, womens health (period tracking), heart rate monitoring, blood pressure monitoring, sleep monitoring, sedentary reminders and other health functions 2. Sports function: stepcaloriedistance, multi-sport mode. Super long battery life standby. Multi-dial switching, incoming call information reminder, silent alarm clock, 1.91 high-definition 320*386 full touch large screen, music control, calculator, games. 3. Other functions: stopwatch, flashlight, countdown, step counting, calories, distance, sleep monitoring, exercise mode, call reminder, alarm clock reminder, raising hand to brighten the screen, social sharing (WeChat, QQ, Facebook, Twitter), etc., shake Photograph 4. Screen size: 1.91 HD 320x386 full touch large screen 5. Screen type: IPS HD TFT 6. Bluetooth: 5.0BLE (low power consumption) 7. Battery capacity: 260mAh 8. Charging method: Magnetic charging 9. Charging time: about 3-4H 10. Battery life: 3-5 days in use, 20+ days in standby 11. Control mode: full-screen touch control, mobile APP control 12. Language: - Watch languages: Chinese, English, Japanese, Russian, German, Spanish, Italian, French, Portuguese. - APP language: (Android: H Band, Apple: H Band Lite): Russian, Hungarian, Turkish, German, Italian, Czech, Slovak, Japanese, French, Polish, Persian, Simplified Chinese , Traditional Chinese, English, Portuguese, Spanish, Vietnamese, Arabic, Korean 13. Material: - Housing: metal alloy - Bottom shell: PC+ABS+medical 316 steel sheet - Strap: Eco-friendly silicone 14. APP: Hband 15. Main control chip: ultra-low power consumption dual-mode 7013A 16. Body temperature sensor: contact body temperature sensor 17. Blood oxygen: infrared light + red light, true blood oxygen 18. Gravity sensor: Rohm KXTJ3