In order to get better at golf, you need to work on your technique all the time. A coach can correct basic swing flaws but not everyone has access to one. The Hackmotion Wrist Sensor is a smart gadget that connects to your phone and shows your swings in 3D on your phone or tablet.
The Hackmotion Wrist Sensor measures real-time wrist flexion and extension data. You simply have to calibrate the device 30 seconds. Thanks to this gadget, you can improve your wrist angles and clubface control. More information is available here.