Keystone 3 Pro

Keystone 3 Pro – Bitcoin hardware wallet for true self-custody

The Keystone 3 Pro is built for Bitcoiners who truly self-custody. No compromises, no third parties – 100 % control of your Bitcoin. Fully air-gapped, featuring three secure elements, a large touch display, and a clear philosophy: not your keys, not your coins.

🧠 Why Keystone 3 Pro?

• Fully offline (air-gapped): No USB, Bluetooth or Wi-Fi data connections – QR signing; updates via microSD.
• Three secure elements: Independent security chips protect seed, PIN and key material at the hardware level.
• Anti-tamper protection: Physical tamper defense with automatic data wipe on intrusion attempts.
• Secure boot & signature check: Only verified, signed firmware is accepted.
• Passphrase (BIP39): Optional 25th word for extra security.
• Multi-seed & Shamir backup: Manage multiple seeds/backups on one device – ideal for advanced setups.
• Secure recovery: Restore via QR/backup while keeping seeds offline.
• Open-source firmware: Auditable code, no hidden backdoors. Note: Multiple firmware variants are available, including a Bitcoin-Only and a Cypherpunk edition downloadable directly from Keystone.
• 4″ touchscreen: Clear transaction details – no blind confirmations.
• Compatible with Bitcoin-standard wallets: e.g., Sparrow, Specter, BlueWallet, Electrum.

📐 Specifications

• Dimensions: 103.9 × 62.44 × 12.08 mm
• Weight: ~103 g
• Display: 4″ color touchscreen (800 × 480 px)
• Housing: PC + ABS – robust and durable
• Power: Li-ion battery; charging via USB-C (power only, no data)
• Firmware updates: via microSD card

📦 In the box

• Keystone 3