Black Bluetooth Smartband Smart Watch Wristband Wrist Band Wrap with Pedometer for Android IOS Function: Passometer,Sleep Tracker,Message Reminder,Remote Control,time display, vibration alarm, self-timer, anti-lost System requirement: 1, android 4.3 and above; 2, IOS6.1 and above inlcude iPhone 4S /5/5C /5S/6/6P Bluetooth version:bluetooth 4.0; Battery life:rechargable( working 10 days after full charged); Display:0.49 inch OLED screen; Net Weight:90g/pc. Package: 1*Bluetooth smartband 1*Charge cable 1* User Manual 1*Retail Box