In the world of health-tracking smartwatches, Fitbits reign supreme. Never before has such an accessible device been so jam-packed with beneficial features, with the ability to track everything from the number of steps we’ve taken to the quality of our sleep. This, combined with its many useful and hidden features, has earned the Fitbit a rightful reputation among users. However, like other smart devices, none of these qualities help when your Fitbit is out of juice.  Overall, while most
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