Video shot/edited by Jennifer Hahn. (video link)

Certain tracker features are now ubiquitous: step counting, distance calculation, sleep tracking, and most recently, heart rate monitoring. But one of the more elusive features—swim tracking—is often mentioned as a side-note or overlooked completely. It might be seen as a niche activity for enthusiasts or just for a particular time of the year, but swimming is one of the best workouts you can do for your body.

Unlike wrist-bound heart rate monitoring, swim tracking hasn’t become so popular that companies are trying to outfit all of their devices with it. Some of the most affordable fitness devices can track swimming, but then there are mid-tier and high-end trackers that have similar features. Which one you ultimately decide to buy depends on how you plan on using it every day.