They are both vibrant-looking OLEDs, have automatic brightness, good peak brightness and the same pixel density. The Charge 5 is slightly larger (1.04 inches compared with 0.76 inches). Looking at the two displays side-by-side, they're quite similar. Thankfully, plastic screen wearables are rare these days - these pick up scuffs and scratches easily. However, they both have a toughened glass screen. Its screen surround is aluminum, while the Inspire 3 is plastic. The Fitbit Charge 5 has a more upmarket build. However, some may find the Inspire 3 a little more comfortable, since it's slighter and lighter. Whereas the Inspire series is a set of super slim and light trackers for passive use, the Charge 5 is a bit more unusual: It bridges the gap between a skinny tracker band and a full-on runners' watch. The Fitbit Charge 5 is a slightly chunkier fitness tracker than the Inspire 3.

Fitbit Inspire 3 vs Charge 5: Design and display However, the Charge's price has since dropped to $149.99/£129.99, making it a pretty attractive buy.

Fitbit inspire 2 vs versa 3