The four tennis sensors (Sony, Qlipp, Zepp and Babolat Play) have rather different outputs for "Speed". So, as a player and/or coach, is racket speed more valuable or more important than ball speed, or vice versa?
It should be stated at the outset that all you will ever get from Zepp and Babolat Play are session or overall averages. Neither provides ...
4 Sensors, 1 accuracy challenge. We strapped, clicked and fiddled our sensors into a few rackets. We changed the player a few times and threw a few juniors into the mix.
To see if we can get some sort of handle on the accuracy of the products available in a fairly young product market - tennis sensors.
Our starting point is the the simplest ...