Chest strap based power meter for running, it also provides heart rate data and running dynamics (cadence, ground contact time, vertical motion). It sends data to any GPS watch and can be uploaded to Strava, Garmin Connect or any other data logging/tracking site/app.

Included:

Stryd Pioneer module

New chest strap (it will fit any Garmin chest strap if you prefer to use your own)

$80 shipped