They break lol. Don't do that. BTW also don't take your laptop onto the beach.
It was only like 6 years ago that leaving your phone in the same room as a running shower was a risky gambit, not sure why we expect ip7 waterproofing on brand new tech.
We expect it because it’s better for how people actually use phones. Not having to worry about getting rained on, for example, is pretty awesome for anyone who doesn’t live in a desert.
The dust part is more of a concern because that’s a lot harder to avoid than rain. For example, most people put phones in pockets or bags which not infrequently collect dust. A regression on that is bad for an ultra-premium device which needs a solid market to fund further R&D.
It was only like 6 years ago that leaving your phone in the same room as a running shower was a risky gambit, not sure why we expect ip7 waterproofing on brand new tech.