Green Bluetooth Smartband Smart Watch Wristband Wrist Band Wrap with Pedometer for Android IOS Please NOTE This wireless smart sports watch is the one must be used with Mobile phone connect .(Download dedicated APP.) Love life walking from now on: TW64 will record your step,distance and calorie,which can help you to set the target. Function description: Step counts, Distance measuring, Calorie Consumption management, Sleep management, Event trigger (water drinking, taking medicine, meeting etc), call reminder, clock, sedentary reminder, anti- lost (positive and negative direction lookup), remote camera, vibration alarm clock. Function description: Step counts, Distance measuring, Calorie Consumption management, Sleep management, Event trigger (water drinking, taking medicine, meeting etc), call reminder, clock, sedentary reminder, anti- lost (positive and negative direction lookup), remote camera, vibration alarm clock.