Support IOS and Android system phone:1)Android phone:Support bluetooth 4.0??Android system is android 4.3 or above. 2)ios phone:Support bluetooth??ios system is IOS7.0 or above such as:iphone4s 5c 5 6 6plus iTouch5 ipad3 Air minil2</br>Calculating the consumption of calorie?? record the daily burn-up calorie.</br>Recording and tracking steps accurately.</b