Passport Prime offers the optional and interesting backup scheme called Magic Backup that involves NFC cards. It doesn't store on cards the whole SEED. In fact the given SEED is split into three SSS-parts two of which are separately stored on individual cards while the third, encrypted part is stored on mobile with installed Envoy app:
The encrypted Envoy shard is also backed up on iCloud or Google Drive and uploaded to Foundation servers. I don't think this is optional and has to be done for the backup system to work. What's the price of the two NFC keycards needed to store the SSS shards? I assume Foundation Devices sells those in their shop.