My son has asked for a [[https://shop.ledger.com/products/ledger-nano-s-plus/matte-black Ledger Nano S Plus]] for Xmas. When he sent me the link it was £20 cheaper in the Black Friday sale, but sadly I am only now looking at it. It's a bit spendy. I don't even know what it is/does! Are the similar wallets out there?