. NFC and smartcard interfaces . Credit card format . FIDO U2F. FIDO2.1. WebAuthn+CTAP. OpenPGP. FIDO2 Level 2 Certificate. . 300 passkey (resident/discoverable key) storage . TOTP with open source app . PIN complexity enforced . No Infineon chips . Firmware reviewed by Compass Security Schweiz AG . Swiss made free and open source firmware and apps . From Switzerland