Fitbit has evolved its line of fitness trackers from simple motion activated step trackers to devices that are a lot more complete. The Fitbit Charge has emerged as the middle ground in these trackers, with the form of a band, but functions are get closer to sports watches.

The Fitbit Charge 4 make the big step in adding GPS, the missing piece of the puzzle that really prevented the Charge being the complete standalone solution; previously you’d need your phone for accurate location data – not so with the Charge 4.

We’ve spent a little time with the new Fitbit and these are our initial thoughts while we’re working up a full review.
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https://www.pocket-lint.com/fitness-trackers/reviews/fitbit/151800-fitbit-charge-4-review