Capto uses a Natural Pendulum Motion and gives you the data on a stroke how it compares to it. The putter moves in 3 planes: towards and away form the target, towards and away form you, and towards and away form the ground. The grip end and the putter face is calculated and data is given.
I have been using the product for quite some time and was recently asked to join the team as a CAPTO Ambassador. Will be making some content covering the unit, what it measures, and tips/drills you can do. For more information, questions, or to order your own contact myself or Matthew at Matthew@captogolf.com