Fitbit offers numerous devices in the activity tracking market, from the plain and simple Inspire and Inspire HR to its GPS sportswatch, known to its friends as Ionic.

The latest device to join the Fitbit family is the Charge 4, an activity tracker that sits in between the Fitbit Inspire range and the Fitbit Versa range.

We’ve compared it to its predecessor – the Charge 3 – as well as the older Charge 2 to see how the Charge devices differ and help you work out if you should upgrade.
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https://www.pocket-lint.com/fitness-trackers/buyers-guides/fitbit/138560-fitbit-charge-3-vs-charge-2-vs-charge-hr-what-s-the-difference