1. Watch function 2. Alarm clock reminding 3. As pedometer when running 4.Test one's exercise situation 5. Can be used as the remote shutter 6. Ringing reminder when you receive a call 7. Ringing reminder when you receive the message 8. Anti-lost alarm function: When cellphone left watch alarm automatically after a certain distance to avoid lose the phones 9. Block one's calling 10. Stopwatch function 11. Smart Bracelet is compatible with many phones and pads equipped with Bluetooth 4.0 and running Android 4.3 or later and iOS 6.0 or later. display size:1.1 Inch