Stopped using paperbacks and hardcovers long time ago, too expensive to import.
Tried the Kindle and other android tablets too, the problem of focus is real with any internet connected devices.
A good size should be between 10-13 inches, those are the most expensive ones but they allow you to read and annotate PDFs with “moderate” ease.
rEmarkable and Kobo have E Ink devices on those categories.
They’re limited when it comes to hardware and features, that’s a plus if you just wanna read and annotate tho.
