Fitbit Versa 3 v Versa 2: we compare Fitbit smartwatches

Fitbit has officially unveiled its Versa 3 smartwatch, the successor to the Versa 2 smartwatch that launched almost a year ago. The new First Versa 3 brings new health, fitness and sports tracking features that make the new version a great upgrade, and solve some of our biggest bugbears with the Versa 2. But there's…