1. RTL8763EWE, 128M large memory, BT5.0 protocol, 

2. Support BT call, One-key connection, More  convenient call scene, 

3. Cool UI, Support drag and drop operation + Shortcut center function, 

4. Large memory, 8 Menu modes, Rich UI scene, More smarter, 

5. 123 Sports modes, Suitable for more sports scenes, 

6. 1.83 inch high-definition large screen, Resolution 240*286, 

7. HX3605 low-power high-definition heart rate 

and blood oxygen, More accurate detection, 

8. IP68 depth waterproof, Suitable for wearing in more environments, 

APP: Da Fit