Quote:
Originally Posted by salamanderjuice
It's entirely eyesight. The 300 PPI 7.8" readers have exactly the same resolution as the 226PPI 10" ones. Everything clear enough to distinguish on one is clear enough to distinguish on the other just smaller.
Are 10" and 13" devices more comfortable to read on? Yes, absolutely. But if you can read tiny text it is doable. I have read a number of A4/letter sized PDFs on my 7.8" Nova 2 especially before I got my Note Air.
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Technically eyesight, but only if you are not human or have much sharper than average acuity.
I compared a regular Penguin paperback (about US pocket-book size) and same PDF of a letter size page on the Elipsa 10.3" and Sage 8". The PDF was a scan of a letter size manual from the 1980s.
The paperbacks have as small text as practicable to save paper costs. The 10.3" (I think 227 dpi) was perfectly readable. The 8" 300 dpi perhaps has more dots and technically you can make it out, but the text size is half that of the paperback novel. So, yes you could use the 8" for one or two pages of a manual or datasheet but the vast majority of humans could not read an entire scanned magazine or scanned book with larger pages.
Also many older people or long-sighted younger people even with ideal reading glasses find the small size paperbacks have too small a print and that's why they have a 6" to 8" eink ereader and may even buy an ebook version of a paperback they still have.
I have the 8" Sage and 10.3" Elipsa. I do read on the Sage where possible because it's so much lighter. I only use the Elipsa for PDFs and I agree many more PDFs are usable on the 300 dpi Sage than a 6" Paperwhite or 7" (I have an original Libra and gen9 /2nd Oasis). I also have the 6.8" 300 dpi Mars I only use for Irish Library books (Borrowbox Android app).