Quote:
Originally Posted by salamanderjuice
They probably just liked the 7” size better. Maybe that’s how big they needed it to be to keep the same thiness but have the same battery life without a case. I’m sure Amazon at this point is a significant fraction of eInk screen sales and can probably dictate any screen size they want at any reasonable PPI.
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My suspicion is that they did not want to increase the device size too much (with the page turning button side being already quite large) while still offering a noticeably larger screen and retaining the 4:3 aspect ratio, probably for easy of software adaptation and consistency across all devices.
Ideally, with the Oasis form factor, they would have gone for a longer but less wide display to retain device proportions and come closer to the actual “aspect ratio” of an actual book (like for example Sony did with the PRS 900 and 950).