Check Out the Newest Jawbone Fitness Trackers

The UP2 ($100) is slimmer and has fewer features than the UP4, but like most trackers, it measures the basics: steps, distance, sleep patterns, and calories burned. The UP2 is available now in Black Diamond; additional colors coming soon.

Both the UP2 and UP4 are splash resistant, not water resistant, and sync wirelessly with the Jawbone app (available on iOS and Android), where you can log your food calories and also see "smart coaching" advice on how to improve sleep and reach your fitness goals. With these two new trackers added into the mix, the question remains: which fitness tracker is right for you?