The table below provides a comparison of devices used to assess performance during resisted and assisted sprinting.
You can scroll left-right (for desktop/tablet) or top/down (for mobile) inside the table to see all products available, and use the search bar to focus the comparison on one technical aspect. 
There are currently 3 products in this table, from the following companies: 1080 Motion, Ergotest Innovation AS, and Sport Spin Up