QLIPP Tennis Sensor - Fits every Tennis Racket

Was great but now won’t lie flat on any racket I own, causing a rattle each time i hit the ball. So annoying now.

Because of Bluetooth connection lost issues this device becomes useless even though the app has some nice features. I followed all Bluetooth recommended settings on qlipp support page but no joy!I contacted qlipp support who said they will organise a replacement but have not responded since and I cannot get in contact with them at all.... No response from any department.As other users have had bluetooth issues and support is practically non existent, I strongly recommend purchasing an alternative.Does not deserve the one star I'm forced to give it .... Seriously it will only gather dust!Also when it did work I found many bugs in the app and swing recognition. Fir example... small taps are recorded. So if u do a forehand and the racket taps your oposite shoulder or upper back on follow through, the tap is recorded as a stroke. So the app needs a few bug fixes as well but u cud live with these although they will affect your score.

The lack of internal memory is a show stopper - it's impossible to stay within range while playing, I found, and it loses all information if the connection is broken mid session.

This is my second Qlipp as they kindly provided a replacement and after fitting it better and securely it is easy to use with a good battery life. Syncs perfectly between devices through the App and the results and feedback are quite amazing as to what it records, notices and spots - I tested it with some dummy hits to the floor. Very pleased with this and can't wait to try to video function.