Product Parameters: 1. Model: iKUNKONG F100 2. Dimensions: 33.7mm in diameter, 11.5mm in thickness 3. Screen: AMOLED HD 4. Screen size: 1.70inch 5. Resolution: 240*280 AMOLED HD 6. Chip: Realtek 8762DW 7. PPG Chip: OSRAM (osram) 2703 8. Laser: Dual probe 650nm laser 9. Blood Oxygen Chip: OSRAM (osram) 2703+HX3690 10. Temperature Sensor: CT1711 array 11. G-sensor: STK8321 12. Bluetooth: 5.0 13. Battery Capacity: 220mAh 14. Charging Way: Magnetic charging 15. Charging Time: about 3-4h 16. Battery Life: 7-12 days 17. Standby Time: 30-40 days 18. Waterproof: IP68 19. System requirements:Android 4.4 + / IOS 9.0 + APP name: smarthealth Features: 1. Keep an eye on your health: Blood oxygen / body temperature / respiratory rate / blood pressure / heart rate monitor, AI medical diagnosis, remote relatives and friends care, sleep tracker. 2. A good helper for workout: Pedometer, calories burned, distance, sports modes. 3. A good helper for daily life: Incoming calls reminder, sync notifications, multiple watch faces, alarm, raise wrist to wake watch, camera remote, Bluetooth music, DND mode, custom faces, weather, etc. Languages: UI languages: Chinese, English, Traditional Chinese, Japanese, French, German, Italian, Spanish, Russian, Portuguese, Malay, Korean, Polish. App languages: Chinese, Traditional Chinese, 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. Note: 1.The principle of smartwatch measurement is completely different from that of medical equipment. It is only for sports and fitness reference, thank you. 2.After receiving the watch, please use the 5V 1A charging adapter to charge the watch for more than 2 hours. 3.Please scan the QR code in the manual to download the APP before use