This works perfectly. Can see all metrics at bottom. SOURCE ONE LLC Compact iPad,... https://www.amazon.com/dp/B005FYMS38?ref=ppx_pop_mob_ap_share

I have this one.

I like it although I don’t trust it on high inclines starting around 8% but I think I’d feel that way about any holder.

I use this cheap plastic treadmill tablet holder that hooks over the monitor. It’s a great $19 solution but you absolutely must put a hand towel over the monitor + under the holder so you don’t scratch the screen. I’m also a rebel and use the dev settings to watch YouTube but it’s so clunky to navigate, it honestly is just faster and easier to throw this thing on.