DT1971

Hi all, I have been an IG trader for a while and have just dipped into buying crypto outright I am looking for a cold wallet to store it in, and wondered if anyone UK based has any experience? my main queries are 1 if the unit stops working (I understand you can obtain a replacement and reload your assets into that, but what if the supplier goes out of business, can you use an alternative product and reload back into that 2 if the wallet is held for a long period and becomes obsolete, is it possible to transfer to a new one looking at one of the better ones eg trezor but any advice would be greatly appreciated