Trezor Safe 3 vs Coldcard Q
Key differences
- Coldcard Q is a premium air-gapped Bitcoin-only wallet with a full QWERTY keyboard and QR scanner, while Safe 3 is a simpler USB-connected multi-coin wallet.
- Coldcard Q costs $239.99, significantly more than the Safe 3's $79 price tag.
- The Safe 3 is compact and beginner-friendly, while Coldcard Q is designed for advanced users seeking full sovereignty and air-gapped cold storage.
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Launch
2023
2025
Screen Size
0.96" OLED (128x64 pixels)
3.2" 320x240 color LCD display
Box Includes
- Safe 3 device
- USB-C cable
- backup cards
- guide
- stickers
- COLDCARD™ Q
Security Features
Passphrase Support
Passphrase Entry
Device or computer
Device
PIN Protection
Shamir Secret Sharing
Tor Support
Usage
Platforms
- Windows
- macOS
- Linux
- Android
- Windows
- macOS
- Linux
- Android
- iOS
- BBQr
Supported Coins
Bitcoin & 1000+ other coins and tokens
Bitcoin Only
Interfaces
USB-C, Buttons
- Full QWERTY Keyboard
- QR Code
- NFC-V
- USB-C
- AirGap SneakerNET
- Virtual Disk
- Dual MicroSD Card
Technical Details
Secure Elements
EAL6+ certified secure chip
- Airgapped
- Wireless (3 x AAA batteries)
- Dual Secure Elements (ATECC608 & DS28C36B)
- Anti-phishing Words
- BIP39 seed phrase
- COLDCARD Co-Signing (CCC)
- AES-256-CTR encrypted storage
Open Source
Hardware & Software
Software
FIDO Authentication
Size
59x32x7.4 mm (2.3x1.3x0.3 in)
120 x 75 x 22 mm (4.72 x 2.95 x 0.87 in)
Weight
14g (0.5oz)
93g (3.3oz)
Bitcoin-Only Version
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.
Display Technology
Display Type
Monochrome OLED
Color LCD (3.2" 320x240)
Touchscreen
No (button controls)
No (button controls)
Build Quality
Body Material
PMMA plastic + reinforced glass
Plastic with QWERTY keyboard
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.
Not rated
Not rated
Haptic Feedback ?Vibration feedback when pressing buttons or confirming actions. Provides tactile confirmation that your input was registered.
No
No
Connectivity & Power
Bluetooth ?Wireless connectivity for pairing with mobile devices. Enables cable-free transactions but some users prefer USB-only for security.
No
No
NFC ?Near Field Communication for tap-to-connect with compatible devices. Convenient for quick mobile transactions.
No
Yes
Wireless Charging
No
No
Cable Type
USB-C to USB-C
USB-C
Battery
No battery (USB powered)
Long lasting (3x AAA batteries)
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.
No
Yes
Dual Secure Element ?Uses two separate secure chips instead of one. Provides redundancy and additional tamper protection for storing your private keys.
Single chip
Yes (2 chips)
iOS Compatibility ?"Full" means you can send, receive, and manage crypto on iPhone. "Limited" typically means view-only or requires desktop for transactions.
Limited (check balances only)
Full support
Company Details
Parent Company
SatoshiLabs
Coinkite
Parent Company Founded
2013
2011
Security Incidents
In March 2024, Ledger discovered a vulnerability in the microcontroller that could bypass firmware integrity checks. Trezor patched the issue, with no user funds compromised or action required.
No known security incidents
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