It can be annoying or even disorienting to try and read while using a treadmill or elliptical machine. You're bouncing up and down, but the text remains stationary. A prototype device called the Run-n-Read aims to solve that dilemma with a wearable sensor that makes the text move up and down along with you.

The Run-n-Read is a tiny clip packed with sensors that can go on your collar or on a headband, if that's how you roll.

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