[mschuster91]

> That being said, I can't personally imagine taking the Apple Watch Ultra to, say, 80-90 feet if it's only rated to 130. It's just too expensive.

I get the feeling of it being too expensive - but technically? If anything is to be expected from Apple, it is to under-promise on advertised specifications, and at least here in Europe, under consumer protection laws I can hold Apple accountable for not delivering upon their spec [1]. The hardest thing with anything underwater is pressure differential anyway - old analog watches have a lot of air inside which is compressible, which means you need strong seals and construction to avoid the pressure differential to simply crack the case. A modern digital watch however? Space is scarce so every cubic millimetre is packed with solid incompressible materials, making it way easier to withstand higher pressure.

[1] Actually had to do that with a CAT phone many years back when I worked in construction, a simple fall on a floor slab broke the screen. I made a backup (back then, that was actually feasible because rooting was easy, another personal gripe I have with recent Android), went up to the retailer and had it shipped in - a week later I had a brand new device and a written apology that the product was not up to spec.