3Bays MX-G103i Golf Swing Analyzer for putting - iOS version

3BaysGSA PUTT is the world's lightest and most accurate putting analyzer. GSA fits into putter grip. It can analyze key aspects of your putting stroke more closely than ever. Delicate 9-axis sensors and intelligent algorithms are deployed to detect and capture even the subtlest movements of the putter and it brings you instant analysis on any Apple iPhone and iPad It is a game-changing device that helps golfers develop consistent repeatable and reliable putting strokes. leather carrying case USB charger & Quick Start Guide