Coldcard vs Bitkey
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Launch
2022
2023
Screen Size
128x64 pixel OLED display
No display
Box Includes
Security Features
Passphrase Support ?An optional extra word added to your recovery phrase for additional security. Creates a hidden wallet that's invisible without the passphrase.
Passphrase Entry
Device
-
PIN Protection ?A numeric code required to unlock your device. Protects against unauthorized physical access to your wallet.
Shamir Secret Sharing ?Splits your backup into multiple shares (e.g., 3-of-5). You need a minimum number of shares to recover your wallet, reducing single point of failure risk.
Tor Support ?Routes your connection through the Tor network for enhanced privacy. Hides your IP address and location when checking balances or broadcasting transactions.
Advanced Security
Quantum Ready ?Designed to receive firmware updates with quantum-resistant cryptography. Protects against future threats from quantum computers that could break current encryption.
Dual Secure Element ?Uses two separate secure chips instead of one. Provides redundancy and additional tamper protection for storing your private keys.
iOS Compatibility ?"Full" means you can send, receive, and manage crypto on iPhone. "Limited" typically means view-only or requires desktop for transactions.
Usage
Platforms
Supported Coins
Bitcoin Only
Bitcoin Only
Interfaces
- Numeric Keypad
- NFC-V
- USB-C
- AirGap SneakerNET
- Virtual Disk
- MicroSD Card
NFC, USB-C
Technical Details
Secure Elements ?A tamper-resistant chip that securely stores your private keys. Certified chips (EAL5+/EAL6+) have passed rigorous security testing.
Dual Secure Elements - ATECC608 & DS28C36B
Fingerprint scanner, 2-of-3 multisig setup
Open Source ?Code that anyone can inspect, audit, and verify. Open-source wallets allow security researchers to find and report vulnerabilities.
Firmware & Software
Software
FIDO Authentication ?Use your hardware wallet as a security key for 2FA login to websites and services. More secure than SMS or authenticator apps.
Size
86x50x7.5 mm (3.39x1.97x0.3 in)
56 mm x 62 mm x 13 mm (2.20 x 2.44 x 0.51 in)
Weight
30g (1.1oz)
65g (2.3oz)
Bitcoin-Only Version
Display Technology
Display Type
Touchscreen
Build Quality
Body Material
Water Resistance ?IP67 rating means fully dustproof and can survive submersion in 1 meter of water for 30 minutes. Protects against accidental spills and drops.
Haptic Feedback ?Vibration feedback when pressing buttons or confirming actions. Provides tactile confirmation that your input was registered.
Connectivity & Power
Bluetooth ?Wireless connectivity for pairing with mobile devices. Enables cable-free transactions but some users prefer USB-only for security.
NFC ?Near Field Communication for tap-to-connect with compatible devices. Convenient for quick mobile transactions.
Wireless Charging
Cable Type
Battery
Integration & Multisig
Integrations
Multisig Support ?Multi-signature wallets require multiple keys to authorize transactions (e.g., 2-of-3). Adds security by eliminating single points of failure.
Company Details
Parent Company
Coinkite
Block Inc.
Parent Company Founded
2011
2009
Security Incidents
No known security incidents
No known security incidents
Coldcard vs Bitkey: Overview
Coldcard and Bitkey are both Bitcoin-only hardware wallets, but they target completely different users. Coldcard is built for maximum security and control, while Bitkey prioritizes simplicity and ease of use.
Coldcard, made by Coinkite in Canada, is designed for advanced Bitcoiners who want complete control. It features dual secure elements, air-gapped operation via microSD/NFC/QR, a physical keypad, and advanced features like duress PINs and trick wallets.
Bitkey, made by Block Inc., takes the opposite approach with a minimalist design. It has no screen, uses fingerprint authentication, and employs a 2-of-3 multisig setup where Block holds one key to help with recovery if needed.
Key Brand Differences
- Custody Model: Coldcard is full self-custody; Bitkey uses collaborative custody with Block holding one key
- Security Philosophy: Coldcard maximizes user control; Bitkey trades some control for convenience
- Display: Coldcard has OLED screen with keypad; Bitkey has no display
- Air-Gap: Coldcard supports full air-gap via microSD/NFC/QR; Bitkey requires phone connection
- Authentication: Coldcard uses numeric PIN with advanced options; Bitkey uses fingerprint
- Target User: Coldcard for security-focused advanced users; Bitkey for mobile-first beginners
- Price: Coldcard $168-240; Bitkey $150
Use the model selector above to compare different Coldcard models with Bitkey.