Fitbit has announced a major update to its iOS app, which will be accessible to users of the Fitbit Flex, Fitbit One, and Fitbit Zip devices. The app update adds two new feature sets to Fitbit's app: ...
Add Yahoo as a preferred source to see more of our stories on Google. Jacob Wackerhausen / Getty Images Fitbit trackers are known for their at-a-glance step-tracking abilities, but have you wondered ...
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