Part 5/13:
Blockstream Jade Plus: Offers wired, Bluetooth, QR code scanning, and microSD card exchanges—giving multiple options for air-gapped operation.
Cold Card Q: Supports wired connection, QR code scanning, NFC, and microSD cards, providing versatile options for air-gapped security.
Bit Key: Communicates solely via NFC, enabling contactless operation but limiting interaction modes.
Proprietary Software and Open-Source Compatibility
Many users prefer hardware wallets that allow flexibility beyond proprietary apps.
- Treasure Save 5: Fully open source, allowing users to audit, modify, and migrate to other software platforms like Sparrow Wallet, with reliance on Treasure Suite for initial setup.