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Measuring your daliy walking distance precisely.
Calculating the consumption of calorie, record the daily burn-up calorie.
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