In addition to steps, the Fitbit One will monitor calories burned, stairs climbed, and distance traveled, and you can even configure it as a silent, vibrating alarm clock so you don’t have to disturb your sleeping partner. If that sounds like an appealing package, you can grab a refurb on Groupon today for $40, one of the best deals we’ve ever seen.
Prefer a wristband? The Fitbit Charge HR is also down to $100 right now, matching an all-time low.
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