Improving as a tennis player can take time, but tracking measurable progress doesn’t have to when the Coollang Smart Tennis sensor is attached to the end of racket.
Tracking can be done in real-time when the sensor is connected to a smartphone via Bluetooth, and even when unconnected, it will store data in its internal memory for later transmission.
The result is a wealth of information that is compiled automatically. The report generated by the Coollang tennis racket sensor and the companion Smart Tennis app can be blunt for a below-average tennis player.