​Features：  Heart Rate Monitor:   Support  Blood Pressure Monitor:   Support  Blood Oxygen Monitor:    Support  Sleep Monitor:                  Support  Pedometer:                        Support  Distance:                           Support  Calories:                            Support  Sport Mode:                      Support  Sedentary Reminder:        Support  Call Reminder:                 Support    Alarm Clock:                    Support Raise Arm Bright Screen: SupportSpecification：  Compatible OS:        Android 5.1, IOS 8.0 or above  Operating Mode:      Single Touch  Bluetooth Version:   4.0  APP Language:        Chinese, English, Japanese, Korean, French, German, Russian, Polish, Spanish  Size:                         40.4*20.1*10.5mm  APP:                         JYOU  Sreen Size:               0.96inch Color Screen  Battery Capacity:     90mAh    Standby Time: 15days  Charging Time: 1.5hours  Band  Material:        Stainless Steel+TPU  Length:                     120-210mmPackage Included:1 *Y5 Wristband 1 * User Manual