> the M3 because the M3 lacks a display controller that can drive the tandem OLED Ultra Retina XDR displays For anyone who hasn't heard of these "tandem displa

> the M3 because the M3 lacks a display controller that can drive the tandem OLED Ultra Retina XDR displays For anyone who hasn't heard of these "tandem displays," they seem to be accomplishing greater brightness and outdoor visibility by layers one OLED on top of the other. It sounds bonkers, but there were those demos of "transparent televisions" last year, so it checks out. Should be pretty exciting if/when these make it to the iPhone and Watch. I would have guessed that the displays would simply mirror each others' content, but the requirement of an enhanced display controller indicates that the two displays are controlled independently, and the video system is pushing twice as many pixels as the already absurd number necessary for a "retina display." This is all speculation, of course. But if I'm correct, an M4 Air that lacks the tandem displays ought to be able to drive more external displays than the M3 model.