Features:<br />* IP67 waterproof. S2 can be weared to swim. (depth not over 1m・ time not over 30mins)<br />* Sports and Health: sports tracking (Pedometer・ distance・calorie)   sleep tracking (sleeping time・ sleeping quality)   set fitness goals   movement pattern (Swimming mode・ Bicycle-riding mode・ Runningmode・ Ropeskipping・ Sit-ups・ Jumping jacks).<br />* GPS movement Trajectory・ distance・ Time・ Pace・ Calorie・ Historical records・ track sharing.<br />* Real-time dynamic heart rate monitoring.<br />* Alert & Notification function: call reminder (Android・ iOS)・ contact name display; Facebook・  Line・ <br />SKYPE・ WhatsApp (Android・ iOS)・ content display; Sedentary; Anti-lost warning; Clock alarm; Task alert.<br />* Smart buttons Find phone: Camera remote・ Music remote・ Video remote.<br />* Wake up screen by turn wrist<br />* Built-in 90mah Lithium-ion polymer rechargeable battery・can be used about 10 days.<br />* Compatible with Android 4.3 and above・ IOS 7.0 and above・ with Bluetooth 4.0 Phone.<br />* APK Name: SmartWristBand. APK Language: Simplified Chinese・ traditional Chinese・ English・ multi language.<br />Specifications:<br />CPU: BT V4.0 BLE<br />Display: 0.96 inch・ 64*128<br />Acceleration: 3-axis G-sensor<br />Heart rate:  Dynamic heart rate detection<br />Battery: 90ma Lithium-ion polymer rechargeable battery<br />Motor: Built-in・remind with vibration<br />Font: Full character display<br />Charge: 5V USB jack・charge by PC USB<br />Water-proof level: IP67・Swimming   (depth not over 1m・ time not over 30mins)<br />Using time: about 10 days <br />Data Sync:   data synchronization to mobile app<br />Data storage:   Storage 7 days' sports data<br />Compatibility:   Support IOS 7.0 and above・ Android 4.3 and above<br /><br />package:<br />1* bracelet<br />1*user manual  English <br />1*charge cable