If device itself is not waterproof (like most hardware wallets), I wouldn't waste a lot of money to buy special dedicated boxes to make them waterproof.
There are simple universal dry bags that can be used for storing anything including hardware wallets, and there are also cheap plastic zip bags that does the job.
Making this case fireproof, shockproof and waterproof would probably make it more interesting for people, but that would also increase the price.
Actually, not everyone would like the idea of that case matrix, but we can't forget that some people may find it useful. A strong case that has all anti-destructive abilities means the price of the case would be high as well.
In my country, we were affected by a flood, which was an extreme disaster. This flood distroyed a lot of properties of individuals, and I can imagine if an individual had any hardware wallet hidden somewhere in their house they would just easily lay their hands on before the water flooded every area. If they had this water-proof case, it would have saved them the big stress of their wallet being damaged, I guess. So I just feel some people will find these cases valuable for themselves. Although your suggestion about the plastic zip bag can also do the job and save the person money to spend on the case, but some people may not value the bag compared to the real case.
And how do you propose to combine fire resistance with water resistance? It seems to me that this will not be easy to combine in one case. Those materials that provide good protection against the penetration of moisture and water, most likely will not have the ability to withstand the high temperatures that occur during combustion. Simply, these materials (like silicone) will melt or burn
You know that before, there was nothing like the idea of this waterproof hardware wallet case, but now we have them in several patterns and sizes. I still think that there can be some possible means to combine the two abilities of being waterproof and fireproof like the one @kamvreto talked about, but since it doesn't totally have the whole ability, one day we might see some new case matrix having all the capability to withstand every distructive factor.
In general, it is impossible to protect yourself from all 33 misfortunes, but you can protect yourself from some of it by choosing a certain type of case (or several). Which one will depend on individual preferences and the environment (situation). Don't look for universal solutions.
Well, for now, it's still impossible since there is no case to provide all the safety capabilities to protect one's hardware wallet. But you are still right about an individual choosing the right hardware wallet case based on the kind of environment in which they are living.
Not only is it ugly, but it also attracts attention. It is true that you do not want to impress others with it, but make it more difficult to notice, especially to thieves or even your friends who may easily recognize it when they come to your house.
Add to this the increase in size, which makes it difficult to hide it, and it is not possible to put more than one hardware wallet inside it.
LoL, I wish I could imagine how you feel about this wallet case, but perhaps you will not keep it where your friends can easily set their eyes on it any time they visit your house. Despite the fact that it protects your hardware wallet, you will still need to keep it in the safe place where you are supposed to keep a hardware wallet.
For $20, you can get a storage made of fireproof and waterproof Aluminum Alloy.
That one is pretty cool and small to carry around.
As a chemist, one thing I have learned is that aluminum may have the ability to resist fire, but it's not a totally fireproof piece of metal. Although it depends on the temperature it gets exposed to.
Okey folks, How about the stainless steel recovery seed phrase offline tool? Although it's not a hardware wallet case, but it's resistant to water and fire, and since it secures the wallet phrase, even if the hardware wallet gets damaged, we still have our phrase to get new hardware and recover the wallet.