Here is a smart sensor that helps you monitor your tennis matches and work on areas you need to improve upon. The Zepp Tennis 2 Wearable can track stroke type, ball speed, spin, and sweet spot. It captures your shots automatically and lets you compare your results with others.
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The Zepp sensor can be attached to any tennis racquet to capture over 1000 data points per second. It connects to your smartphone via Bluetooth.
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