What is Wallet type?

A wallet type says where the private key sits and who controls it, which is the part that matters when coins should leave the device only with your say-so. Arculus keeps keys on a hardware device you hold, while Anchorage Digital, Argent, asterium and Atomic Wallet are all mobile, mobile, mobile and mobile wallets, meaning the key lives in an app on the phone. Backup phrases and device security carry the same weight either way.