Three Coldcards. Two sizes. One security philosophy.
They all come from Coinkite. They are all bitcoin-only. They all run on open-source firmware. But the right choice depends on how you use them. This article explains that.
Quick overview
| Property | Coldcard Mk4 | Coldcard Mk5 | Coldcard Q |
|---|---|---|---|
| Price (USD) | [TO BE VERIFIED] | $169.94 | $249.21 |
| Price (EUR) | [TO BE VERIFIED] | [TO BE VERIFIED] | [TO BE VERIFIED] |
| Size | Compact | Compact | Larger (QWERTY) |
| Screen | Klein | 1.54″ Gorilla Glass | Groot |
| Keyboard | 4 buttons + joystick | Improved, almost flat | Full QWERTY |
| QR scanner | No | No | Yes (built-in) |
| Battery | No (USB) | No (USB) | Yes (built-in) |
| NFC | Yes | Yes (corrected) | Yes |
| Ventilation hole | Yes (SD, NFC) | Yes (SD, NFC) | Yes (QR, SD, NFC) |
| Secure elements | 2x (double) | 2x (double) | 2x (double) |
| Bitcoin only | Yes | Yes | Yes |
| Open source | Yes | Yes | Yes |
Coldcard Mk4
The Mk4 is the tried-and-true choice. Released in 2022. Compact. Discreet. Two secure elements. NFC. USB-C. SD card. Fully vented if you want it that way.
If you use your hardware wallet once a quarter to transfer coins and keep it in a safe the rest of the time, the Mk4 is the best value for the money.
Product page: Buy a Coldcard Mk4
Mk4 is the best choice if:
- You want a proven model that has been in production for years
- Price over extensive UX state
- I rarely use the wallet and only for cold storage
Coldcard Mk5
The Mk5 builds on the Mk4. Same compact size, improved hardware. Launched in March 2026.
What's different from the Mk4: a larger Gorilla Glass screen, improved buttons, faster NFC, and a repositioned USB-C port. Same security model.
Product page: Buy a Coldcard Mk5
Mk5 is the best choice if:
- If you want the latest compact Coldcard
- You're looking for a better screen and keyboard experience in a compact size
- If you think the Mk4 is too old in terms of hardware
Coldcard Q
The Q is Coinkite’s premium model. Bigger. Heavier. More expensive. Easier to operate.
QWERTY keyboard. Large screen. Built-in QR scanner. Built-in battery. Full air vent via QR or SD card.
He is strong with complex operations: multisig transactions, BIP-85 child keys, Seed XOR splits. The large screen and QWERTY keyboard reduce the chance of errors.
Product page: Buy Coldcard Q
Q is the best choice if:
- You sign transactions regularly or daily
- You manage multisig or complex setups
- values comfort over compactness
Recommendation matrix
| Use case | Recommendation |
|---|---|
| Beginners, First hardware wallet | Coldcard Mk4 or Mk5 |
| Cold storage, rarely touch | Coldcard Mk4 |
| Active daily management | Coldcard Q |
| Multisig setup | Coldcard Q or Mk5 |
| Maximum portability | Coldcard Mk4 or Mk5 |
| Budget-conscious | Coldcard Mk4 |
Frequently asked questions
Which Coldcard should I buy as a beginner?
Start with the Coldcard Mk4 or Mk5. Compact, proven, affordable. The Q is fine, but it has more features than you'll need at first.
What is the difference between the Coldcard Mk4 and Mk5?
The Mk5 improves on the Mk4 with a larger Gorilla Glass screen, better buttons, faster NFC, and a relocated USB-C port. Size and security philosophy remain the same.
Is the Coldcard Q worth it if you already have the Mk4?
That depends on how actively you use the wallet. If you sign transactions daily or weekly, the upgrade is worth it. If the wallet sits in a safe for months, it is not.
What is the difference between the Coldcard Q and the Mk5?
The Q has a QWERTY keyboard, large screen, built-in QR scanner and battery. The Mk5 is compact. Same security philosophy, different use case and price.
Which Coldcard works with Sparrow Wallet?
All three, Coldcard Mk4, Mk5, and Q, are compatible with Sparrow Wallet, Electrum, Specter Desktop, and BTCPay Server.
Can I use a Coldcard completely offline (air gap)?
Yes, all three models support air-gapped usage. The Mk4 and Mk5 via SD card and NFC. The Q also via the built-in QR scanner.
Where can I buy a Coldcard in the Netherlands?
At Bitcoin Stuff Store. Shipping to the Netherlands and Belgium; payment in bitcoin or via iDEAL.
Schema.org JSON-LD (for TechSEO implementation)
{"@context": "https://schema.org", "@type": "Article", "headline": "Coldcard Mk4 vs Mk5 vs Q: Which one should you buy?", "description": "Complete comparison of Coldcard Mk4, Mk5, and Q by price, specs, use case, and security. By someone who has tested them.", "author": { "@type": "Person", "name": "Mario", "url": "https://www.bitcoinstuffstore.com" }, "publisher": { "@type": "Organization", "name": "Bitcoin Stuff Store", "url": "https://www.bitcoinstuffstore.com" }, "url": "https://www.bitcoinstuffstore.com/coldcard-mk4-vs-mk5-vs-q/", "inLanguage": "en"}---FAQPage---{"@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [{ "@type": "Question", "name": "Which Coldcard should I buy as a beginner?", "acceptedAnswer": { "@type": "Answer", "text": "Start with the Coldcard Mk4 or Mk5. Compact, proven, affordable. The Q has more features than beginners need." } }, { "@type": "Question", "name": "What is the difference between the Coldcard Mk4 and Mk5?", "acceptedAnswer": { "@type": "Answer", "text": "The Mk5 improves on the Mk4 with a larger Gorilla Glass screen, better buttons, faster NFC, and a relocated USB-C port. Size and security philosophy remain the same." } }, { "@type": "Question", "name": "Is the Coldcard Q worth it if you already have the Mk4?", "acceptedAnswer": { "@type": "Answer", "text": "Daily or weekly transactions make the upgrade worthwhile. Monthly cold storage does not." } }, { "@type": "Question", "name": "Where can I buy a Coldcard in the Netherlands?", "acceptedAnswer": { "@type": "Answer", "text": "At Bitcoin Stuff Store. Delivery in NL and BE, payment in bitcoin or iDEAL. Product pages on bitcoinstuffstore.com." } }]}
Not sure which Coldcard fits your situation? Send a message. You will get an answer from someone who knows the device, not a script.