Bluetooth Talk Outdoor Pedometer Exercise Heart Rate Sleep Monitoring Smart Watch 1. Main chip: Realtek8763EW 2. Acceleration sensor: STK8321 3. PPG heart rate sensor: LC11S 4. Touch IC: 816D 5. Touch mode: full touch 6. Motor: flat motor 7. Speaker: AAC hi-fi speaker 8. Display: 1.52 inch TFT round screen 9. Resolution: 360 x 360 10. Flash size: 128M 11. Bluetooth version: 5.2 12. Bluetooth antenna: FPC 13. Battery capacity: 380mAh lithium battery 14. Charging method: magnetic cable charging 15. Use time: about 5 days 16. Standby time: about 23 days 17. Charging time: about 2.5h 18. Supported languages: Simplified Chinese, Traditional Chinese, English, Russian, Indonesian, German, Italian, Czech, Japanese, French, Polish, Portuguese, Spanish, Arabic, Korean, Dutch, Hindi 19. Health monitoring: heart rate detection, heart rate timer monitoring, blood pressure detection, blood oxygen detection, blood oxygen timer monitoring, sleep monitoring, breathing training 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, etc. 22. Reminder function: alarm clock, sedentary, incoming calls, SMS, WeChat, Skype, Whatsapp, Facebook, Gmail, etc. 23. Other functions: Bluetooth call, watch direct dialling, watch address book, music playback, countdown, timer, calculator, split screen, music control, find mobile phone, find watch, stopwatch, remote control photo, weather, screen brightness adjustment, sports track, women health 24. Material: ABS, PC, zinc alloy, glass, silicone 25. Waterproof rating: IP68 26. Strap length: about 22cm 27. Size: diameter about 51mm, thickness about 13.5mm 28. Weight: about 55g