Signing devices, not cold wallets.

Fountain, Trezor, Ledger and ColdCard devices, just to name a few, are not wallets. What they are is a signing device. Your Bitcoin never leaves the blockchain, or timechain if you prefer. I wish the entire space would start using the correct term for these devices. They do one thing: they sign transactions. Yes, some allow you to see your balance, but I don't consider them to be a wallet. They don't store anything.