Many folks have access to an old Android phone. These devices have a screen, camera and wifi. Seems like the perfect platform.
I found this Reddit post but the instructions it cites seem to be dead: https://www.reddit.com/r/3Dprinting/comments/5f5y8w/i_got_octoprint_server_running_on_android/
Has this approach been abandoned?
This worked when I tried it
Didn't test it but this could also be an option