ET585 2.04 inch Nylon Strap IP68 Waterproof Smart Watch, Support ECG Blood Composition Measurement 1. Functions: Bluetooth calls, ECG electrocardiogram, micro-physical examination function, HRV detection, emotion detection, fatigue detection, non-invasive blood sugar monitoring, blood composition measurement (uric acid and blood lipid function), (body composition) body fat BMI measurement, meiosis function, SOS emergency call function, blood oxygen monitoring, blood pressure monitoring, breathing training, women's health (menstrual tracking), heart rate monitoring, sleep monitoring, body temperature monitoring, sedentary reminder, etc., NFC access control, stepcaloriedistance, multi-sports mode, alarm clock, screen display function, weather forecast, smart voice assistant, game, flashlight, music playback and control 2. APP: Hband 3. Main control chip: ultra-low power consumption 7013A 4. Blood oxygen: infrared light + red light true blood oxygen 5. Gravity sensor: Rohm KXTJ3-1057 6. Photoelectric chip: VP555ER 7. ECG chip: VP555ER 8. Vibration: silentvibration 9. Waterproof level: IP68 10. Compatible systems: Android 5.0 and above, iOS 10.0 and above 11. Screen size: 2.04 inches 368x448 12. Screen type: AMOLED 13. Bluetooth: 5.3BLE (low power consumption) 14. Battery capacity: 530 mAh 15. Charging method: magnetic charging 16. Battery life: 5-10 days of use, 20+ days of standby 17. Control method: full-screen touch control, mobile phone APP control 18. Language: Watch: Chinese, English, Japanese, Russian, German, Spanish, Italian, French, Portuguese, Polish, Korean. APP: Danish, Russian, Croatian, Hungarian, Hindi, Indonesian, Turkish, Hebrew, Greek, German, Italian, Czech, Slovak, Japanese, French, Polish, Persian, Thai, Swedish, Simplified Chinese, Traditional Chinese, Romanian, Finnish, English, Dutch, Portuguese, Spanish, Vietnamese, Arabic, Korean, Malay 19. Material: Casing: Alloy metal Case: PC+ABS+heart rate lens Strap: Nylon strap