The Best Bitcoin Hardware Wallets & Seed Phrase Backup Tools
A simple directory of the best Bitcoin signing devices, metal seed backup tools, and supporting wallet software — because your sats are best stored cold.
Portal
Mobile-native Bitcoin hardware wallet powered by NFC — no cables or batteries needed. By TwentyTwo Devices. ~€89.
Portal by TwentyTwo Devices is the first mobile-native Bitcoin hardware wallet, designed to integrate seamlessly with any mobile wallet app using NFC — the same standard used by contactless credit cards. It requires no cables and no battery, drawing all power from the NFC field of your smartphone. The user interface is intentionally minimal: Portal displays each transaction output, and signing is confirmed by holding a button for a couple of seconds. Its firmware is written entirely in Rust and based on Bitcoin Development Kit. Built by cypherpunks, for Bitcoiners. Priced at €89 (currently limited availability).
