Update: February 21 (2:51 PM ET): We’ve updated our Fitbit Inspire 4 rumor hub with new information about Fitbit’s devices in general. At the end of my Fitbit Inspire 3 review, I gave the device a ...

So you’ve bagged yourself a Fitbit, whether that’s a shiny new Versa 3 smartwatch or you’re sticking to the band life with the Charge 5. The good news is that what makes Fitbit trackers and watches in ...