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- Coldcard Mk2 vs Device
Coinkite Coldcard Mk2 vs Frostsnap Device
What Coldcard Mk2 does better (0) and where Device wins (2) — every spec side by side.
vs
3.0Open source8.5
Why is Coldcard Mk2 better than Device?
Coldcard Mk2 has no measurable advantages in this pair.
Why is Device better than Coldcard Mk2?
- Open-source firmwareNo · Coldcard Mk2: Yes
- Reproducible buildsNo · Coldcard Mk2: Yes
Specifications
Side by side
| Security | ||
| Secure Element chip | — | No |
| Air-gapped signing | — | No |
| 100% air-gapped | — | No |
| Secure boot | — | Yes |
| Anti-klepto (anti-exfil) signing | — | Yes |
| Firmware & open source | ||
| Open-source firmware | No | Yes |
| Source code available | Yes | Yes |
| Reproducible builds | No | Yes |
| Firmware licence | — | MIT |
| Upgradable firmware | Yes | Yes |
| Firmware update via | — | USB |
| Bitcoin-only firmware / edition | — | Yes |
| Device lock | ||
| PIN lock | — | Yes |
| PIN entered on the device | — | No |
| Duress PIN / decoy wallet | — | No |
| Brick / wipe PIN | — | No |
| Wipe after failed attempts | — | No |
| Time-delayed unlock | — | No |
| Anti-phishing words | — | No |
| Keys & backup | ||
| BIP39 passphrase | — | No |
| Shamir backup (SLIP-39) | — | No |
| Seed XOR | — | No |
| BIP85 child seeds | — | No |
| 24-word seed | — | No |
| SeedQR backup | — | No |
| microSD backup | — | No |
| NFC backup card | — | No |
| User-added entropy (dice) | — | Yes |
| Stateless use (no stored keys) | — | No |
| Multiple seeds on one device | — | No |
| Bitcoin features | ||
| Multisig | — | No |
| Taproot | — | Yes |
| Miniscript | — | No |
| Message signing | — | Yes |
| Coin control | — | No |
| Own node connection | — | Yes |
| Tor support | — | Yes |
| Replace-by-fee | — | Yes |
| Silent Payments | — | No |
| FROST threshold signing | — | Yes |
| Spending limits | — | No |
| Testnet | — | Yes |
| Supported assets | ||
| Altcoins & tokens | — | No |
| Bitcoin only | — | Yes |
| Connectivity | ||
| Signing connectivity | — | USB-C |
| USB | — | Yes |
| USB-C | — | Yes |
| Bluetooth | — | No |
| NFC | — | No |
| QR code camera | — | No |
| Animated QR (UR) | — | No |
| microSD signing | — | No |
| Screen & input | ||
| Screen | — | Yes |
| Screen size | — | 1.69″ |
| Screen type | — | OLED |
| Screen resolution | — | 240 × 280 |
| Touchscreen | — | Yes |
| Colour screen | — | Yes |
| Gorilla Glass | — | No |
| Controls | — | Touch Screen |
| QWERTY keyboard | — | No |
| Battery & power | ||
| Built-in battery | — | No |
| Wireless charging | — | No |
| Design | ||
| Weight | — | 60 g |
| Length | — | 42 mm |
| Width | — | 34 mm |
| Thickness | — | 9 mm |
| Materials | — | Aluminum |
| Water / dust resistance | — | No |
| Several colours available | — | Yes |
| Assembled in | — | Malaysia |
| DIY build possible | — | No |
| Apps | ||
| Official apps | — | Windows, macOS, Linux, Android |
| Desktop app | — | Yes |
| Mobile app | — | Yes |
| Compatible third-party wallets | — | 0 |
| Other features | ||
| FIDO2 / U2F security key | — | No |
| Password manager | — | No |
