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

There’s no shortage of devices that track workouts, but a new crop of gadgets that help you make your workouts better is slowly growing. One of the newest is the $99 Lumo Run, which is a scaled-down version of the company’s smart clothing. It’s a super-small sensor that monitors running, analyzes form in real-time, and provides feedback on how to run better.

In some ways, that might seem limiting: unlike so many activity tracking wearables that are great for people looking to exercise more, Lumo Run doesn’t track daily steps, sleep, or nutrition. Devices like Lumo Run are meant to be used during workouts by people who already have an exercise routine and are looking to improve it. The device might not have as wide an audience as a more basic fitness tracker, but once you’re in a routine, the Lumo Run may actually be more helpful.