Meet Blast Baseball: a smart motion sensor that attaches to any regulation bat to help you monitor your performance on your smartphone or tablet. The sensor knows when you are moving to capture 3D action metrics in real-time. You will be able to capture video and track swings instantly.
Blast Baseball does not require you to change your routine to make it work. It can store swings when your phone is not around. You will be able to view swing speed, wrist release, power, efficiency, and other data on your smart device. More information is available here.