... points:1.MTK2502,app compatible with Android and IOS2.Light up screen when hands up.3.With heart rate ... 4.0 Acceleration Sensor 3-axis,3D accelerator,hand up light up the screen, pedometer, sleeping monitor, Sedentary reminder ... highest quality products at the best prices. Delivery Harvest Living Industry Co.,Ltd implements detailed mass production procedures, reliable production capacity standards, ...