The only tablet I can recommend is any iPad with pen support.
It has been a lifesaver in my uni life, by taking notes digitally I saved dozens of notebooks and otherwise wasted paper, plus the convenience of having my digital books that can be taken everywhere saved my back.
I think that for a university student the base 128gb (or even a 64gb one) iPad and a knockoff apple pen for 20~30€ is a worthwhile investment.
I can see it a whole lot better in bed, or around the house. The phone is too small. I only use the phone outside of the house when I'm mobile, except for hotels, then I'll use the tablet.