1. Compatible system: Android 4.4 and above, iOS 8.2 and above 2. Spo2 chip: Ti high-performance analog front-end AFE4404+2*OSRAM 2703 PD+OSRAM three-in-one LED 3. Body temperature sensor: CT1711 array 4. ECG chip: Ti chip 129 5. Optoelectronic chip: Ti AFE4404 + dual OSRAM 2703 6. Waterproof level: IP68 7. Screen: 1.70 inches high-definition TFT color screen, resolution: 240*280 8. Bluetooth: 4.2BLE (low power consumption) 9. Battery capacity: 200mAh 10. Charging method: magnetic (with short circuit protection circuit) 11. Charging time: about 3-4H 12. Battery life: 7-15 days of use, 30-40 days of standby 13. Watch languages: Chinese, English, Traditional, Japanese, French, German, Italian, Spanish, Russian, Portuguese, Malay, Korean, Polish 14. APP languages: Chinese, Traditional, English, Japanese, German, Russian, Italian, French, Spanish, Portuguese, Thai, Czech, Greek, Polish, Vietnamese, Turkish, Romanian, Hungarian , Danish, Finnish, Arabic, Ukrainian, Hebrew, Persian, Irish, Slovak, Norwegian, Korean, Croatian, Swedish 15. Shell material: metal alloy + stainless steel, bottom shell material: PC + ABS + medical 316 steel sheet 16. Function: Multi-sports mode, heart rate monitoring, blood pressure monitoring, ECG function, AI medical diagnosis, body temperature monitoring, blood oxygen monitoring, breathing rate, remote care of relatives and friends, shake to take pictures, information reminder, music control, stopwatch, step counter Wait 17. Size: 255x36x10.8mm