As the holiday season approaches and New Year's and its inevitable fitness-related resolutions draw near, wearables makers are scrambling. Major brands like Apple and Samsung have realized that smartwatches need to at least be good activity trackers for users to keep wearing them. Samsung decided that "good activity tracker" wasn't enough, though, and built a device around exercise that also packs a slew of smartwatch features. The Gear Sport does so much that it's one of the most versatile health-centric smartwatches in this price range.