Hello @crypto.piotr, I currently do not have a nano ledger or any type of cold storage hardware aside from my paper wallets (anyone is welcome to send me one though!hahahaha) But, I can confidently say that if I am going to own one, it would be this- ledger nano because, it supports a larger array of coins and, its more secured.

Hey, I do not accurately know right now so, if anyone out there is interested to send me one so I can try it, please do so I can write an honest feedback about it. hahahahaha