Bluetooth Talk HD Large Screen Heart Rate Oxygen Monitoring Multi-Sport Mode Smart Watch 1. Main chip: Jerry 7013A6 2. Acceleration sensor: SC7A20H 3. PPG heart rate sensor: VC30F 4. Touch IC: 816D 5. Touch mode: full touch 6. Motor: flat motor 7. Speaker: Hi-Fi speaker 8. Display: 1.85 inch TFT square screen 9. Waterproof rating: IP68 10. Flash size: 128M 11. Bluetooth version: 5.2 12. Bluetooth Antenna: FPC 13. Battery capacity: 270mAh lithium battery 14. Charging method: magnetic cable charging 15. Use time: about 7 days 16. Standby time: about 30 days 17. Charging time: about 2h 18. Supported languages: Simplified Chinese, Traditional Chinese, English, Japanese, Korean, German, French, Spanish, Russian, Ukrainian, Italian, Portuguese, Ukrainian 19. Health monitoring: heart rate detection, heart rate timing monitoring, blood pressure detection, blood oxygen detection, sleep monitoring 20. Standard functions: step counting, exercise distance, calorie consumption, hand-raising screen, wrist-rolling screen 21. Exercise mode: support running, cycling, walking, skating, free training, ball, hiking, yoga, swimming and so on 22. Reminder function: alarm clock, sedentary, incoming calls, calendar, SMS, WeChat, QQ, Viber, Gmail, etc. 23. Other functions: Bluetooth call, watch direct dialling, watch address book, music playback, timer, music control, stopwatch, remote control photo, weather, screen brightness adjustment, sports track 24. Material: ABS, PC, glass, silicone 25. Waterproof rating: IP68 26. Strap length: about 22cm 27. Size: about 46.25 x 38.25 x 11mm