In hospital recently my main device was an Honor 10. I had plenty of data so that wasn't a problem, but when I tried posting on forums was.
First, I would get big ads across the screen despite using Chrome and having an ad blocker. Second, I couldn't find a decent keyboard amongst the ones I had installed. Third, it was just painful navigating a site like MacRumors on a 5.84" screen - there was nothing I could do about that.
Slightly OT relating my phone experiences but I don't believe an iPad would have been any better except being able to use a better keyboard. I would have used my iPad except the hospital didn't have wi-fi.
Macrumors forums weren't any worse than others