Here is a smart wearable system that shows you how to improve your golf game. DuoTrac is a multi-point, motion tracking golf sensor that analyzes your swing performance and footwork. It uses a 4-dimensional view plane approach for better accuracy. You will be able to analyze face angle at impact, club face path, foot roll & weight shift, and transition on your phone.
The app for this device offers real-time coaching and lets you track your progress. The product is getting funded on Kickstarter.