I really don’t think it needs oled or thinner. Oled risks burn in (I say as I have an oled desktop monitor without burn in, but I worry about it) — though perhaps Apple can figure that out (micro led would be great though). As for thinner, it’s pretty dang thin already. I’d rather more battery in the 14” and be a little thicker, honestly.
Apple seems to have it figured out, my last two iPhones have had OLED screens and I never saw any burn-in despite having them on a lot and fairly bright.
iPhones are not turned on for 8+ hours straight though.
But if Apple is doing it they probably figured this out.
How the hell thinner can it possibly get?!? Jesus.
Thin enough that I can make origami from it.
Last time Apple made it thinner it was a portless catastrophe
