Yes, the 2019 model. I also used the iPad mini 4th gen which worked perfectly as well. Yes, download the app and enlarge, it works fine like that for me. I use THIS MOUNT , it works fine but if I had more to spend I'd probably buy this one. You'll probably need a longer data cable, make sure it is OTG. THIS is the one I got but there are lots on Amazon.

A tablet holder is a really good idea! Especially since it is a 6inch phone and just barely fits in the controller. Thank you for the suggestion.

Found a different but similar one for the same price. It claims to have better foam and better tightening ring thing: https://smile.amazon.com/gp/product/B071RK5FYY/

I bought the UZOPI tablet holder. Works great and comes with a bag and a nice lanyard. I use it with my 8.4" Samsung Tab A.