Link by Misfit, $17 at store.misfit.com This low-cost fitness tracker, which doubles as a "smart button" that can toggle between music, photos, and favorite apps, is a great way to monitor exercise without splurging on a designer wearable. Photo 3 of 10 in Editor's Picks: 10 Cheap but Cool Finds Under $50

Editor's Picks: 10 Cheap but Cool Finds Under $50

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Link by Misfit, $17 at store.misfit.com

This low-cost fitness tracker, which doubles as a "smart button" that can toggle between music, photos, and favorite apps, is a great way to monitor exercise without splurging on a designer wearable.