SwingAndMatch
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Zepp's tennis sensor now includes a highlight camera
Unless you've got a professional coach on hand, it can be tricky to determine how good your tennis skills really are -- simply not slamming the ball into the net doesn't count, unfortunately. But for those looking to up their game, sport sensor creator Zepp has a new gadget that could help you serve your best match yet. The Tennis 2 Swing and Match Analyzer, which looks not unlike a tennis ball, fits on the bottom on your racket and measures stroke type, spin, ball speed, ball spin and accuracy, then relays the info to its iOS or Android app via Bluetooth.