A Look at the Hugest Differences Between Popular Fitness Trackers

The Bowflex Boost ($50) has all the same basic features of any fitness tracker but at a more affordable price. It tracks calories, steps, and distance as well as sleep stats, all of which sync wirelessly and automatically with its accompanying iPhone app (it's not compatible with Android devices). There's no display, but red, yellow, and green lights let you know whether you've hit your goals. For more details on the Bowflex Boost, read Self's review here.