Built-in USB Charging;Indicator Light;Light Weight;Touch design;Cloud social circle interaction</br>Self-timer artifact;Looking for mobile phones;Sedentary Reminder</br>Movement monitoring;Sleep monitoring+Alarm clock reminder;Snyc Sports Data?? Share with Friends</br>Display Health Parameters;APP of the new revision;Synchronize Data;Caller ID and message</br>Compatiblity:Support IOS and Android smartphones which with bluetooth version 4.0/4.0+.(1)IOS:OS system should be IOS8.0 or above.(2)Android:Os system shoud be Android 4.3 or above.</br></br>Product Description</br></br><b>Features:</b><br> Gesture Checking Very cool and convenient way to check the time and message by "rist Gesture"<br> Two Way Connecting I5 wristband support Bluetooth 4.0 and WiFi two way to connecting the cellphone App.<br> Long Using Time High Capacity battery keeps about 7 days working by one time charge.<br> Touch Display Large 0.91 inch 128 * 64 pixel OLED touch screen?? easy to check the message??<br> phonecall?? twitter?? facebook etc.<br> <br> <br> <b>Functions:</b><br> [Tracks Steps] Record and track steps accurately.<br> [Distance Measurement] Measure your daliy walking distance precisely.<br> [Calorie Mangement] Calculate the consumption of calorie?? record the daily burn-up calorie.<br> [Sleep Cycle] Monitoring your sleep cycle automaticaly?? record the quality of sleep.<br> [Time Display] Sysnc your smart phone with OLE