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.