F400 1.55 Inch Screen Smart Watch Support ECG Blood Oxygen Blood Sugar 150+ Sports Mode 1. Excellent design: The metal case is formed by multiple CNC processes, the side is brushed, and the bezel is equipped with high-gloss vacuum plating to highlight the craftsmanship. The mineral glass mirror is highly transparent, wear-resistant, scratch-resistant and timeless, and the display details are vivid and vivid. 2. The 1.55-inch high-definition touch screen, high-pixel display resolution, and professional sharp screen display technology make each picture clear and vivid. 3. Important functions: ECG measurement, body composition analysis, blood composition analysis (uric acid, blood lipids), red light 24-hour blood oxygen, HRV report, 24-hour scientific sleep, fourth-generation blood sugar, all-day stress monitoring, SOS alarm, fall alarm 4. Conventional functions: step counting, distance, calories, calls, voice assistant, heart rate, blood pressure, temperature test, meizitang, breathing training, stopwatch, timer, calculator, time and date setting, mini-games, female menstrual period tracking, music playback, music control, remote photography, weather display, wrist-raising screen, mobile phone search... etc. 5. Dial configuration: built-in 5 dials + 1 dial market dial + 1 custom dial 6. More than 150 sports modes 7. The APP supports 35 languages, watch supports 20 languages Parameters: 1. Support mobile phone operating system: IOS 10.0 or above, Android 5.0 or above 2. Main control chip: JL7013A 3. Storage space: 16Mb+128MB 4. Gsencor sensor: Rohm KXTJ3-1057 5. Health sensor: VP555EP full-function three-in-one chip 6. Motor: ERM vibration motor 7. Waterproof level: IP67 8. Screen specifications: 1.55" round screen Resolution: 360x360 (sRGB high color gamut) 9. Screen type: IPS LCD OCA full touch 10. Bluetooth: Bluetooth 5.3 11. Battery: polymer lithium-ion battery 3.7V 380 mAh 12. Charging method: magnetic charging cable 13. Charging power: 5V1A (cannot be charged with fast ch