1. Chip: REALTEK (Realtek) RTL8763EW 2.Flash: 128Mb +128 music memory 3. GPS/AGPS: not supported 4. Acceleration sensor: SENSORTEK STK8321 5. Bluetooth: 5.0 6.LCD: 1.96 inches, IPS high resolution 240X286 7. Touch control: capacitive multi-point full touch 8. Heart rate sensor: support, LC09 9. Motor: support 10. USB: support 11. Charging method: 4PIN thimble magnetic charging 12. Waterproof grade: IP68 13. Battery capacity: 600mah polymer battery 14. Support system: Android 4.4 or above, IOS 8.0 or above 15. Functions: heart rate/blood pressure/blood oxygen measurement, Bluetooth calls, music, pedometer/calorie, sleep monitoring, alarm clock reminder, stopwatch 16. Multi-sport mode: support 8+1 types, (walking, running, mountain climbing, cycling, rope skipping, basketball, badminton, football, yoga) 17. Supported languages: Chinese, traditional, English (default), German, French, Italian, Spanish, Japanese, Polish, Russian, Portuguese, Vietnamese, Arabic, Thai, Turkish, Dutch, Indonesian, Malaysian English, Romanian, Hebrew 18. Dial selection: 12+1 dial selections, (APP can customize the dial) 19. Product size: 42x54x12.8mm