Biggest difference is Coda's constant 20kb vs still at least a few hundred megabytes for Vault. This matters because it helps in making cryptocurrency and cryptocurrency apps usable by people from their phones and browsers, at 20kb with Coda that's actually possible.
I haven't looked particularly into if any consensus / security assumptions are different either with Vault, but that could be another place for them to get down to a few hundred MBs without zero knowledge proofs.
I haven't looked particularly into if any consensus / security assumptions are different either with Vault, but that could be another place for them to get down to a few hundred MBs without zero knowledge proofs.