Heart Moniter: Blood pressure blood oxygen moniter Heart Rate monitoring. Activities Tracking: Records daily steps, distance and calories consumption. Music Control: Tap screen to adjust volume, music play, pause, or switch to last or next song. Sleep Monitoring & Alarm: Automatically track your sleep quality, and alarm silent vibration will wake you up. Call Alert: Caller name and Caller Id will be displayed on OLED screen. SMS Notifications: Support SMS, Whatsapp, Facebook, Twitter, We-chat, and other social network site alert Anti Lost: When your phone or the brcacelet is beyond the range of Bluetooth (6M-10M),the device will vibrate.