w4s smart band with heart rate,ip67 waterproof smart band,fitbit smart bracelet

Screen 0.96 inches OLED (resolution ratio 64*128)
CPU NORDIC 52832
Battery Rechargable lithium-ion polymer battery: 90mAH                          About 7 days after full charging. Standby time: 25 days
Waterproof IP67 waterproof
Features 1 Activities Record: Record daily activities, you could check daily activities including step, distance and calorie consumption in the app;
Features 2 Sleep Monitoring: Device could automatically recognize your state and monitoring the whole sleep progress with analyzing the deep sleep and light sleep hours;
Features 3 Notification Alerts: Alarm alert, call alert, sedentary alert, etc, by silent vibration;
Features 4 Remote music control function. Lisent to music synchronously without turning on smart phone and switch song freely.  
Features 5 Multi-sport modes: Walking, running, swimming, basketball, badminton, etc
Features 6 Heart Rate Monitoring: Accuracy rate of dynamic heart rate can be favorably compared to that of professional heart rate belt. 
Features 7 Body temperature monitoring function. Know body temperature difference trend at any time to avoid hidden disease reasonably. 
Features 8 Device Data Sync and Storage: Bluetooth data is synchronized with smart phone APP and backend. 7-day sport/sleep data
Color Black, Green, Blue, Purple
App Language Simplified Chinese, English, Greek, French, German, Italian, Spanish, Dutch, Portuguese, Russian, Turkish, Janpanese


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