R2 Waterproof Smartwatch Black

Superior features:
1. Number of steps, calories and distance
2. PPG + ECG blood pressure heart rate monitoring
3. Sports mode
4. Sleep mode monitoring
5. Can receive more than ten kinds of instant messaging information
6. Multiple contextual smart reminders
7. Intelligent one-button measurement
basic skills:
1. Time interface (multiple themes are optional.
Stopwatch
3. Shake the camera function
4. Retrieve your phone and watch
parameter:
1. System: Android 4.4+ / iOS 8.0+ (Bluetooth must be 4.0 or above.
2. Waterproof rating: IP68
3. Battery type: polymer battery
4. Synchronization mode: Bluetooth 4.0
5. CPU: NRD52832
6. Material: Aluminum alloy + PC + TPU