Trace Sensor
Tech specs 
TypeTRACE combines sensors, video, and an easy-to-use app to deliver nuanced game insights to your smartphone. Measuring 1.5" x 1.25" x .5", it is worn on the dominant leg. The system is predominantly intended for use by coaches of teams.
Rechargeable
Battery life
DisplayNo
SensorsAccelerometer
Other
Metrics 
TracksMaximum effort, energy remaining, top speed, distance, acceleration
Real time feedback
Other- TRACE 180° video pairs with sensor data that compiles highlights within hours of the final whistle.
- With the TRACE app, coaches can easily distribute video, stats, and more after the game.
- The TRACE smart video editor uses sensor data to automatically detect and edit key moments.
Links 
View onTrace
Amazon US rating
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