I don't use a case for mine and have had it slide out of my pocket while driving, had to fish it out of the crack between my seat and the center console. This was with normal pants too. To be fair my old iPhone7 had the same problem, but it still amazes me they could design it to be _that_ slick.
Phones are of course more slippery than ever as they've grown and slimmed and've developed a whole touch screen on one side.
But I also wonder what material you'd manufacture right onto a phone that doesn't just cheapen it to most people, like the lame helmet they give you when you rent a motorcycle. A cool brushed metal feel vs the cracking rubber and yellowing rubber on my girlfriend's cheap android.
Either way I'm not sure why one wouldn't put it in a case. It's like 10 years too late for anyone to be marveling at it.
