1. Bluetooth: BT3.0/5.0 2. Memory: 128M 3. Main control platform: 8762DK 4. Display: 1.32 inches 5. Resolution: 360x360 6. Charging method: 2 Pin magnetic cable 7. Battery capacity: 300mAh 8. Waterproof level: IP67 9. Support Bluetooth calls, making the call scene more convenient 10. Large memory, rich UI scenes, smarter watch 11. 19 sports modes, suitable for more sports scenes 12. HR3605 has low power consumption and high definition heart rate and blood oxygen, and the detection is more accurate. 13. Support blood oxygen detection, message and call reminder, WeChat exercise and other functions 14. System requirements Android 6.0 and above, iOS 10.0 and above