Android 5.1 and above, IOS 8.0 and above
Bluetooth 4.0 
Screen display: 1.4inch TFT Full Touch screen                                                  
Battery Capacity: 170mAh                                                                                       
Function: Steps, Distance, Calorie, Heart Rate, Blood Pressure,
Notification, Sleep monitoring, Sports, Music Player, Sedentary
reminder, Shutter, StopWatch, Brightness, Weather                     
Chargeing Time: 2-3 hr                                                                                                    
Standby Time: 15-20 days                                                                                          
Waterproof level: IP67                                                                                                    
App: Da Fit