Is the e-ink display of these kindles significantly better for eye health compared to say an iPad. I already have an old iPad but thinking about grabbing a kindle paper white to read an hour or so before bed. Does it emit blue light that fucks with your sleep like an iPad?
I'm not fully read up on the evidence, but if I recall correctly, there is no evidence that light emitting displays are bad for your eye health.
But light emitting (backlit) displays do make eyes more uncomfortable. Light reflecting ones don't as much (no different to reading from paper).
Front lighting is just convenient lighting for reflective displays and if you don't like it, you can just use any old light.
I don’t know anything about the kindles, but you do know Apple products have a night shift mode specifically for that reason, right?
Not sure why you took such a passive aggressive tone there. It's not a good look, especially when there's no significant evidence that changing screen colour does any good.
Really, if you don't want disrupted sleep from displays, you should not use any
light emitting display from a few hours before sleep, no matter the colour or even brightness.