Android 5.1 and above, IOS 8.0 and above
Bluetooth 4.0 
Screen display: 1.3inch TFT                                                         
Battery Capacity: 170mAh                                                                                       
Function: Steps, Distance, Calorie, Heart Rate, Blood Pressure,
Blood Oxygen，Notification, Sleep monitoring, Sports，
Inactivity reminder, Remote selfie, Find Phone, Music Player，
Stop Watch，Brightness                     
Chargeing Time: 3 hr                                                                                                    
Standby Time: 15 days                                                                                          
Waterproof level: IP67                                                                                                    
App: Da Fit