Are you speaking just about technical books?
Because I can’t imagine anyone trying to read a novel in epub vs pdf on a phone or epub reader and going with the latter.
Are you speaking just about technical books?
Because I can’t imagine anyone trying to read a novel in epub vs pdf on a phone or epub reader and going with the latter.
As for phones, screens nowadays are almost the same size as readers and with more resolution. E-ink is more comfortable for longer sessions, but if you find such a size unusable you might just have poor eyesight.
I have read many hundreds of books this way.
The problem with a tablet is that most tablets, especially the sort that are good for seeing entire as-printed pages at once, are too big for me to keep the entire screen in focus without wearing glasses. (with that said, foldables improve things here, since the aspect ratio bottleneck is typically width so being able to double the width on the fly makes such things more readable.