An original Libra is better than PW3 which is better than a PW4. Compared in daylight and by electric room lights. Compared side by side.
The Sage is nearly identical to original Libra in clarity and contrast and brightness in daylight and artificial room lighting, but 8″ instead of 7″ and much faster with Calibre and PDFs. PDF manuals/instruction books are mostly OK too.
Also no comparison in Calibre integration of Kobo vs anything else.
I had a reMarkable and have an Elipsa (same 10.3″ screen). The Elipsa is better but inferior for reading on to the Sage due to extra size and weight, not the 227 dpi vs 300 dpi. I only use the Elipsa now for checking layout of some PDFs for POD. Most scanned books in PDF are fine on the Sage.
There is a 9.7″ screen ereader, but at 150 dpi it must be a similar panel to the DXG just with touch added. The DXG is rubbish compared even with a 7″ Libra even for PDFs.
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