YK02 1.43 inch AMOLED Screen Smart Watch, BT Call Heart Rate Blood Pressure Blood Oxygen 1. Health functions: Supports Bluetooth calls, non-invasive blood sugar measurement, MET function, blood oxygen monitoring, breathing training, stress monitoring, women's health (menstrual tracking), heart rate monitoring, blood pressure monitoring, sedentary reminder, etc. 2. Sports function: supports stepcaloriedistance counting, multi-sport modes. 3. Other functions: stopwatch, flashlight, countdown, step counting, calories, distance, sleep monitoring, exercise mode, incoming call reminder, alarm clock reminder, raise your hand to light up the screen, social sharing (WeChat, QQ, Facebook, Twitter), shake to take pictures wait. 4. Using a 1.43-inch AMOLED round screen with full viewing angle, the colors are vivid and delicate, and exciting content appears on the screen. 5. Equipped with a 280mAh large-capacity lithium battery, which has a long battery life and can be used for a long time. Parameters: 1. Main control chip: Ultra-low power consumption dual-mode Jerry 7013A 2. Gravity sensor: ROHM KX-1057 3. Optoelectronic chip: Tianyi Hexin HX3602 4. Blood oxygen: infrared light + red light blood oxygen 5. Waterproof level: IP67 6. Compatible systems: Android 6.0 or above, iOS 10.0 or above 7. Screen size: 1.43-inch AMOLED round screen full viewing angle 8. Screen type: AMOLED 466 x 466 9. Bluetooth: BLE 5.3 10. Speaker: 1609 large magnetic 11. Battery capacity: 280mAh 12. Charging method: magnetic charging 13. Charging time: about 2-3H 14. Battery life: 5-7 days of use 15. Standby time: 30-40 days 16. Control method: full-screen touch control, mobile APP control 17. Appearance material: Shell PC+ABS 18. Strap: environmentally friendly siliconeleather strap 19. Watch supports languages: Chinese, English, Japanese, Russian, German, Spanish, Italian, French, Portuguese 20. APP supports languages: Russian, Hungarian, Turkish, German, Italian, Czech, Slovak, Japanese, French, Polish, Persi