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The first AI-powered boxing bag is laced with sensors and comes with a 3D computer-­vision camera, allowing it to measure the accuracy, power, speed, and technique of every strike—all in under 250 milliseconds. A companion app uses that data to create a personalized training experience; pugilists can also compete virtually in real time and soon will be able to earn “JAB$” credits to exchange for prizes. The idea, says founder and CEO Mauro Frota, is to gamify boxing fitness.

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