Yeah... I'm a big fan of "the less tech you have, the longer you will stay". And yes, cards are "waterproof".
You can immerse chipcard in (non-corrosive) liquid for several minutes without any effect on the hardware. I'm doing it everytime I drink a beer and show a demo of our cards
Is that apply for all credit cards and similar devices or Satochip has something special that other devices don't have?
I saw Tangem card wallet being tested in ice and water and it passed without an issue, I think it would probably survive smash with a hammer unless chip was directly hit and destroyed.
I've seen some of the videos on the links the OP listed. The conclusion I got from several tests, especially for minor incidents that usually occur, such as falling or being splashed with water, is that the hardware wallet in the form of a smartcard is more durable.
That is correct, but I think it's not hard to achieve water resistance for small devices, if you put then in sealed waterproof plastic bag.
Similar thing can be achieved for protection against fire, using fireproof bag or materials that can resist high temperatures.
I would still like to have one ''tank'' hardware wallet that can survive almost anything, but I don't expect all of them will be like that.