Probably not much off the bat if you don’t use a case but if you do use a case you’ll notice it (and if it adds weight you’ll notice that too). But for almost anyone they will get used to it pretty quick. It’s not a big deal.How perceptible is .5mm?
I’m more interested about any improvement in sound quality from the built-in speakers. That increase in size albeit slight is still more chambering area for the speakers to use so maybe a modest increase in bass - maybe.