COLDCARD vs Passport Core: Bitcoin OpSec Choices
COLDCARD Mk5 is the PSBT specialist with dual secure elements; Passport Core is Foundation’s sleek open-source Bitcoin signer with mobile-friendly design.
Choose COLDCARD Mk5 if you want dual secure elements, MicroSD/QR PSBT air gaps, and the most hardcore Bitcoin-only operational toolkit.
Choose Passport Core if you want Foundation’s open-source Bitcoin signer with a more approachable industrial design and friendlier mobile-adjacent workflows.
Quick Comparison
| Feature | | |
|---|---|---|
| Price | $189 | $199 |
| Best For | Bitcoin Users | Bitcoin only Users |
| Connectivity | microSD, NFC-V, USB-C | QR, microSD, USB-C charging only |
| Open Source | Mostly open source | Fully open source |
| Coins Supported | 1+ | 1+ |
| WalletLab Rating | 4.5/5 | 4.6/5 |
Security
- Mostly open source
- Seed model: BIP39 seed generated offline on device
- Secure Element (Microchip ATECC608 and Maxim DS28C36B)
- Optional passphrase (hidden wallet)
Dual SE Bitcoin-only firmware — maximal paranoia options
- Fully open source
- Seed model: BIP39 seed generated offline on device
- Secure Element (Microchip ATECC608B)
- Optional passphrase (hidden wallet)
Foundation secure element with open-source transparency
Ease of Use
- Beginner score: 6.5/10
- None
- Bitcoin Users
Steep curve — rewards coordinators and advanced users
- Beginner score: 8/10
- Envoy
- Bitcoin only Users
Cleaner industrial design — easier than raw PSBT toys
Supported Coins
- 1+
- Bitcoin Users
Bitcoin-only by design
- 1+
- Bitcoin only Users
Bitcoin-focused firmware on Core
Open Source
- Mostly open source
- Firmware is open source
- Reproducible builds supported
Open firmware with MicroSD/QR PSBT heritage
- Fully open source
- Firmware is open source
- Reproducible builds supported
Open-source stack with Foundation’s security communications
Mobile Experience
- microSD, NFC-V, USB-C
- iOS and Android apps
- Mobile experience score: 7/10
Not mobile-first — MicroSD/QR/USB workflows
- QR, microSD, USB-C charging only
- iOS and Android apps
- Mobile experience score: 8.3/10
Better phone-friendly posture than classic COLDCARD
Price & Value
- Listed price: $189
- Strong value score in our data
- Mid-range or flagship tier
Fair for a dual-SE specialist signer
- Listed price: $199
- Strong value score in our data
- Mid-range or flagship tier
Premium industrial design for Bitcoin-only buyers
Which One Should You Choose?
- Run Sparrow/Electrum PSBT with MicroSD air gaps
- Want dual secure elements and dice-roll entropy culture
- Prefer function-over-form industrial hardware
- Optimize for minimal firmware surface (Bitcoin-only)
- Want Foundation’s open-source story with modern industrial design
- Prefer a less intimidating UX than pure PSBT power tools
- Still Bitcoin-only but may use Foundation’s mobile flows
- Value premium build quality for long-term cold storage