How photos look on e-ink depends on how the SW is implemented. If dithering is used, then yes, random photos look like crap. But it can also use shades of gray

How photos look on e-ink depends on how the SW is implemented. If dithering is used, then yes, random photos look like crap. But it can also use shades of gray (8, or 16), which is slower to update, but looks much better.