Besides the obvious differences pertaining to mobility because of screen size and actual screen resolution, the only other differences I would say is the hardware is under more stress so to speak on the Chuwi Hi12 because your asking the same hardware to push more pixels on a larger screen, although I sincerely doubt there will be lots of negative impacts into everyday tasks.
As for booting from USB on the Hi10 I have no experience but I imaging its possible with a simple converter for the existing type C port.
My personal experience so far is I would have wanted the screen of the Hi12 and its size but find myself liking the Hi10 more for the fact that its smaller and slightly lighter on my commutes than carrying anything else. Also I would rather in the tragic event of something happening to lose my Hi10 than my laptop which I use for more hard hitting tasks from CAD, coding, gaming, etc.
Ubuntu… I wouldn’t see why not but these devices are unique and any changes to their software can have a potentially critical impact and with very minimal support otherwise from user forums, I really wouldn’t recommend it unless your willing to carefully learn about coding and backups and have the pockets to shoulder a bricked device in the case where something goes horribly wrong with the tablet and you end up with a moderately expensive paper weight.
Basically what I’m saying is, it’s up to you and do it at your own risk. Just don’t expect for things to go smoothly if at all.
