Smartwatches are complex (but small) beasts with multi-faceted functionality. Fitness trackers, in contrast, are streamlined to do only one thing: keep track of your activities. Well, actually two things. They also display that information, provided they have a screen of their own. Following the fitness-centric update to the Gear S2, Samsung is rolling out a similar refresh to the Gear Fit2 and Gear Fit2 Pro, making it easier to see your fitness stats and goals with just a few taps and swipes.