Smart Tennis Sensor / by Gavin Lau

Screen Shot 2014-01-21 at 12.32.11 am

Sony showed off a prototype tennis racket sensor at CES 2014 that promised to track useful data about your technique and transmit it to your smartphone. That prototype has turned into reality faster than we thought it might — the final product now has a name, a price, and a release date for Japan...  

http://vrge.co/1iefefI