I wish they would stop this rhetoric about if you can't see individual pixels that means you should not have higher pixel density.
The issue is not about seeing individual pixels, but how those pixels compose to form an image.
Text is ALWAYS clearer the more pixels that can be used to render a character. You can get smaller text and still be legible, and this means that you can get more information and content on a smaller screen that is more clearly readable on higher density screens. Photos and videos are also more clear because of how individual pixels are used to compose larger components of the frame. If the Apple Watch screen has like 4K resolution, you would notice a difference even if you couldn't see individual pixels without a microscope.
Also, with EVERY generational leap in pixel density the color gamut increases and the quality of the colors and accuracy improves. More pixels means more light is combined from more sources of light so that the color gamut and accuracy improves. This is why 4K looks far more realistic then 1080p or 720p displays. Advances like HDR are not available on 1080p displays because those displays simply cannot reproduce the color depth and gamut or accuracy that standards like HDR demand. With higher pixel density, the color accuracy and gamut increases which is overall a good thing. personally when a display matches the quality of real life, that is when enough is enough, no display yet matches that yet.
I can't stand how Apple dismisses technological innovation because they either refuse to invest money in that area or haven't found an off the shelf part from a 3rd party they can find to provide that technology in an upcoming product and use naive marketing rhetoric to make consumers believe the feature or innovation is irrelevant. Apple has done this in the past with pixel resolution, screen size, the stylus, and a bunch of other things Apple wasn't ready to release yet because they were playing catch up and dismissing the innovation of their competition while their competition introduces ALL these innovations first, and then Apple eventually follows up with the feature years later.
Not saying that we need 8k phone screens just yet but it is tiresome and troubling when a trillion dollar company constantly tells us there is a limit to their innovation because they claim it is irrelevant to move beyond it; why do people keep investing in a company that always talks about giving up until their competition pushes them further?
Apple should be telling us there ARE no limits to innovation and they are working hard to bring us the future, not tell us its all for nothing and having us wait for it to show up before Apple commits to it.
Oh, and then I read these were comments from Phil Schiller who is useless on a good day.