Shockproof digital smart watch

feature

1. GPS/GPS route record
2. Heart rate/sleep monitor
3. Altimeter, barometer, compass
4. Pedometer, stopwatch, timer, calories
5. Comprehensive sports: hiking / hiking / biking / marathon
6. Clock alarm
7. Calendar
8. Calculator
9. Recording
10. Device
11. The spirit of calling, the spirit of information, the calls answered