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Blockstream Jade Plus: Supports desktop and mobile, with multiple communication options—Bluetooth, QR codes, and microSD cards.
Cold Card Q: Fully compatible with desktop and mobile, supporting various communication methods such as microSD, QR codes, NFC, and optional virtual disc mode.
Bit Key: Exclusively designed for mobile, relying on NFC without any wired connection.
Communication Methods
How these devices communicate impacts security and usability.
Treasure Safe 5: Uses a wired connection; no wireless or wireless-like options.
Ledger Flex: Supports wired interaction and Bluetooth for wireless, mobile-friendly connectivity.