By David Goldman, Heather Kelly and Jose Pagliery @CNNMoney December 18, 2014: 4:10 PM ET
Babolat Play Pure Drive tennis racket, $299
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It looks like a regular tennis racket, but the Babolat Play Pure Drive has sensors in the handle that let you record all kinds of information about your swing. Via a mobile app, the racket will tell you about your power, where you're hitting the ball, and it will give you the number of forehands, backhands, serves and smashes.
