Clavis

https://geyser.fund/project/clavis

This is a hardware wallet prototype currently in the fundraising phase. It's unique system design. Unlike phone-based wallets with a broad attack surface, Clavis follows the typical hardware wallet approach by using a separate device for signing transactions.

However, it goes further by incorporating an NFC card that stores the private key for the “savings” account, likely offering the highest level of security.

NFC is heavily utilized—not only for communication between the phone and the hardware wallet but also between the wallet and the NFC card holding the savings key.

The distinction between savings and spending accounts is a novel feature I haven’t encountered before, and I’ll be watching this project closely as it develops.