Hardware wallets
Coldcard
Coldcard Mk4 and Q in the catalog - air gap signer in the characteristics table and direct comparisons.
Models & Differences
Same criteria per model
Coldcard Mk4
Bitcoin / Air Gap
- Display
- monochrome
- Connectivity
- USB · NFC
- iPhone signing
- full
- Backup
- Seed phrase ✓ · SLIP39 ✕ · Manufacturer backup ✕
- Documented list price
- USD 177.94
View sources: Coldcard Mk4
- Coldcard Q product pageSource retrieval 2026-08-14
- Coinkite / Coldcard shop — USDSource retrieval 2026-08-14
- Coinkite: firmware licenceSources retrieved 2026-10-10
Coldcard Q
Other
- Display
- colored
- Connectivity
- USB · NFC
- iPhone signing
- full
- Backup
- Seed phrase ✓ · SLIP39 ✕ · Manufacturer backup ✕
- Documented list price
- USD 249
View sources: Coldcard Q
- Coldcard Q product pageSource retrieval 2026-08-14
- Coinkite / Coldcard shop — USDSource retrieval 2026-08-14
- Coinkite: firmware licenceSources retrieved 2026-10-10