This app was mentioned in 3 comments, with an average of 1.00 upvote
I've got a Samsung Galaxy Note Pro 12.2". It was cheaper than the Ipad 2 I've found and with bigger screen.
Then you can download the free app Write on it.
I'm doing all the TMAs with it which would be quite difficult with a smaller screen.
If you're looking for stuff that supports handwriting, I've got a couple of suggestions.
I used to use an app called Write on a Galaxy Note 10.1 from 2012. In more recent times, I use Squid. I don't remember why I switched, but I think files on Squid might be smaller.
I was primarily looking for decent palm rejection as I used a stylus. Both worked well in this regard. I haven't really had to use them recently since I've been out of school for a while, but I don't recall having issues with switching files. I never used a camera in conjunction with my notes, so I can't really speak on that.