FWIW I'm in the same boat wrt the iPad, however I just bought a used iPad Air 1st gen for 139 GBP (came with a brand new case too) to use with my new treadmill.

FWIW I'm in the same boat wrt the iPad, however I just bought a used iPad Air 1st gen for 139 GBP (came with a brand new case too) to use with my new treadmill. It's slow as molasses but works great for watching videos (and iFit), and it was so cheap.