Neither build a seed signer. IMO They're the best for cold storage and multi-sig.

The seed signer is technically a signing device and not a hardware wallet per se because it does not have a secure element and does not store your seed on the device. So you have to take a little bit of extra effort in securing your seed phrase but I think they're the best device all around.

using jade with seedqr is great. similar/same functionality of a seedsigner. but if you already have a coldcard that is probably "better"