Fitbit Charge 5 vs Fitbit Charge 4: What’s changed?

Fitbit has officially unveiled its newest fitness tracker, the Fitbit Charge 5, but how does it compare to 2020’s Charge 4? 

The Charge 4 was a fantastic all-rounder, packing heart, sleep, step and sports tracking, a long battery life and built-in GPS. The latter was a first for the Charge series that, along with SpO2 tracking, helped the fitness band secure four and a half stars in our review. 

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