Coinkite Coldcard Mk4 vs Foundation Passport Prime

Coinkite Coldcard Mk4 offers open-source code. Foundation Passport Prime features iOS support — and costs $171 less.

2 wallets

$171 price gap

iOS support differs

Quick Verdict Updated 2026

Coinkite Coldcard Mk4

Best value Highest security

70 /100

Good

$177.94

View Best Price

$177.94 View Best Price

Foundation Passport Prime

Best overall

70 /100

Good

$349

View Best Price

$349 View Best Price

Open-formula rating | 40+ criteria analyzed | Last updated June 2026 | No sponsored rankings

Key Takeaways

Coinkite Coldcard Mk4 wins in security (100/100)
Foundation Passport Prime wins in ease of use (74/100)
Coinkite Coldcard Mk4 is more affordable ($177.94)
Best for beginners: Coinkite Coldcard Mk4 (easier setup)

Coinkite Coldcard Mk4 vs Foundation Passport Prime: Key Differences

Both Coinkite Coldcard Mk4 and Foundation Passport Prime can keep your crypto safe — the real question is which one fits the way you actually use it. We've put both through our open-formula scoring on 40+ criteria: Coinkite Coldcard Mk4 (Coinkite) lands at 70/100, Foundation Passport Prime (Foundation) at 70/100. The $171 gap between $177.94 and $349 isn't arbitrary — these are two different bets on what matters in a hardware wallet, and the right pick depends on which bet you'd take.

Expand This Comparison:

Coinkite Coldcard Mk4 vs Foundation Passport Prime vs OneKey Pro Coinkite Coldcard Mk4 vs Foundation Passport Prime vs Trezor Safe 7

Winner by Category

Which wallet leads in each area

Security

Coinkite Coldcard Mk4100/100

Foundation Passport Prime72/100

View Best Price Coinkite Coldcard Mk4

Ease of Use

Coinkite Coldcard Mk452/100

Foundation Passport Prime74/100

View Best Price Foundation Passport Prime

Price

Coinkite Coldcard Mk4$177.94

Foundation Passport Prime$349

View Best Price Coinkite Coldcard Mk4

Coin Support

Tie

Coinkite Coldcard Mk41+

Foundation Passport Prime1+

Privacy

Tie

Coinkite Coldcard Mk475/100

Foundation Passport Prime73/100

Beginner Friendly

Coinkite Coldcard Mk452/100

Foundation Passport Prime74/100

View Best Price Foundation Passport Prime

Comparing:

Coinkite Coldcard Mk4

Foundation Passport Prime

Comparison Table

Key specifications for your decision

Coinkite Coldcard Mk4 vs Foundation Passport Prime — Common
Criteria	Coinkite Coldcard Mk4 Coinkite $177.94 View Best Price	Foundation Passport Prime Foundation $349 View Best Price
Overall Rating	70/100	70/100
Security	100/100	72/100
Usability	52/100	74/100
Price	$177.94	$349
EAL Certification (Evaluation Assurance Level) from Common Criteria rates the security of hardware components, like secure chips in crypto hardware wallets. Higher levels, such as EAL5+ or EAL6+, indicate stronger resistance to attacks. Learn more	Yes	Yes
Open Source Firmware refers to firmware in hardware devices, like wallets, where the source code is publicly available, allowing transparency, auditability, and customization. Learn more	Yes	Yes
Bluetooth Connectivity enables wireless communication between devices, like hardware wallets and smartphones, using Bluetooth or Bluetooth Low Energy (BLE) for secure data transfer. Learn more	No	Yes
USB	Yes	Yes
Networks	1+	1+
A passphrase is an additional security layer for cryptocurrency wallets, acting as a 25th word in the BIP39 seed phrase, protecting access to hidden wallets. Learn more	Yes	Yes
A touchscreen display is a screen that allows users to interact with a device by touching the surface, commonly used in hardware wallets for easy navigation and transaction confirmation. Learn more	OLED	3.5" IPS Color Touchscreen (Gorilla Glass, 480x800)
Recovery is the process of restoring access to a cryptocurrency wallet using its seed phrase or mnemonic backup if the original wallet is lost or inaccessible. Learn more	24-word seed	24-word + Shamir
Setup Time	~15 min	~18 min
IP Rating refers to the level of protection a device has against dust and water, often used for hardware wallets to indicate their durability in various environments. Learn more	None	None

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Our Verdict: Coinkite Coldcard Mk4 or Foundation Passport Prime?

Choose Coinkite Coldcard Mk4 if...

You want to save $171 without sacrificing core security

Skip Coinkite Coldcard Mk4 if...

× You manage crypto from an iPhone (no iOS app here)
× You want Shamir Secret Sharing for split, geographically distributed backups

View Best Price — Coinkite Coldcard Mk4 Full Review — Coinkite Coldcard Mk4

Choose Foundation Passport Prime if...

You want advanced backup with Shamir Secret Sharing
You need iPhone (iOS) compatibility

Skip Foundation Passport Prime if...

× Budget is tight — you'd be better served by a cheaper option in this comparison

View Best Price — Foundation Passport Prime Full Review — Foundation Passport Prime

Our pick for most users

Both wallets score similarly (70 vs 70/100) — your choice depends on which features matter most to you.

Bottom line: Coinkite Coldcard Mk4 is the safer bet on security; day to day, Foundation Passport Prime is the easier driver. If budget is real, Coinkite Coldcard Mk4 comes in $171 cheaper without giving up the basics.

Price: Coinkite Coldcard Mk4 vs Foundation Passport Prime

Coinkite Coldcard Mk4 costs $177.94, while Foundation Passport Prime is priced at $349 — a $171 difference. The extra cost of Foundation Passport Prime gets you a 0-point higher overall rating. For budget buyers, Coinkite Coldcard Mk4 offers solid security at a lower price point.

Buy Coinkite Coldcard Mk4 — $ 177.94 Buy Foundation Passport Prime — $ 349

Who Should Pick Which Wallet

Recommendations based on real-world use cases

Coinkite Coldcard Mk4

$177.94

Coin controlFull node supportNFC supportNative multisig support

Pros

+Dual secure elements (ATECC608A + DS28C36B) vs single-chip competitors
+Fully air-gapped signing via NFC or encrypted microSD — no USB required
+Open-source firmware with reproducible builds, independently verifiable
+Advanced multisig support with on-device policy verification

Cons

−Bitcoin-only: no support for ETH, SOL, or any altcoins whatsoever
−No companion mobile app — requires desktop (Windows, macOS, or Linux)
−No QR code signing; air-gap relies solely on NFC or microSD transfer
−At $177.94 it is among the most expensive single-asset hardware wallets

View Best Price Full Review

Foundation Passport Prime

$349

Built-in batteryCoin controlTor supportFull node support

Pros

+KeyOS turns it into a programmable platform: Bitcoin wallet + FIDO keys + 2FA + 50GB encrypted storage
+Independently audited by Keylabs with no critical or high-severity findings
+2-of-3 Shamir (SLIP-39) backup onto tamper-evident NFC Keycards by default
+ATECC608C secure element with a SAMA5D2 security processor and secure boot

Cons

−At $349 it costs more than single-purpose Bitcoin signers
−Reproducible builds are not yet available, so shipped firmware cannot be verified against source
−First-party app is Bitcoin-only; altcoins require third-party apps
−Larger attack surface as a general-purpose app platform than a minimal signer

View Best Price Full Review

Best for These Profiles

🎓

Beginner / first wallet

Coinkite Coldcard Mk4 — simpler setup, lower learning curve

🔒

Security maximalist

Coinkite Coldcard Mk4 — highest security score, on-device verification

💰

Budget-conscious buyer

Coinkite Coldcard Mk4 — solid security at $177.94

✈️

Frequent traveler

Coinkite Coldcard Mk4 — compact, durable, no cables needed

Pre-Purchase Checklist

Important points to verify regardless of your choice

All wallets ship from official manufacturer stores with full warranty.

Buy Coinkite Coldcard Mk4 Buy Foundation Passport Prime

Coinkite Coldcard Mk4 vs Foundation Passport Prime: Frequently Asked Questions

Answers about Coinkite Coldcard Mk4 vs Foundation Passport Prime

Is Coinkite Coldcard Mk4 better than Foundation Passport Prime?

On the numbers, Coinkite Coldcard Mk4 comes out ahead — 70/100 vs 70/100 — but 'better' isn't quite the right frame. Foundation Passport Prime is easier to use (74/100 usability), which matters more for some buyers than overall score does. If overall rating is what you actually weigh first, take Coinkite Coldcard Mk4. If ease of use is the constraint that shapes your decision, Foundation Passport Prime is the smarter buy. Either way, both are real hardware wallets — neither is a mistake.

How much do Coinkite Coldcard Mk4 and Foundation Passport Prime cost?

Coinkite Coldcard Mk4 costs $177.94, Foundation Passport Prime costs $349. These are list prices for the standard edition from official manufacturer stores. A few things worth knowing: hardware wallet prices barely move during the year, so 'waiting for a sale' rarely pays off — Black Friday is the one exception, with 10–20% off being typical. Avoid third-party listings even if they're cheaper; the supply chain risk on a tampered device wipes out any savings the first time you load funds. And don't buy a 'used' hardware wallet, ever — even if it claims to be reset.

Can Coinkite Coldcard Mk4 be used on iPhone (iOS)?

No — Coinkite Coldcard Mk4 has no iOS app today, and there's no public roadmap for one. It works fine with Android, Windows, macOS, and Linux, but iPhone users are out of luck. If your primary device is an iPhone and you don't want a separate computer just to manage crypto, Foundation Passport Prime is the practical pick: it has a native iOS app and the full feature set works over Lightning or Bluetooth.

Coinkite Coldcard Mk4 vs Foundation Passport Prime: which has better backup options?

Coinkite Coldcard Mk4 uses a standard 24-word seed phrase. Foundation Passport Prime uses a 24-word seed phrase with optional Shamir Secret Sharing for split backups. Both work — but they reflect different ideas about what 'backup' should be. The seed phrase approach (BIP-39) is the open industry standard: portable across most wallets, well-documented, and recoverable on any compatible device. The downside is well-known too — it's a piece of paper that's a single photograph or careless moment away from disaster. Card-based backups can't be photographed and don't write themselves down, but they're proprietary, which means you trust one manufacturer to stay in business and keep the format alive. Pick based on which failure mode worries you more.

Where to buy Coinkite Coldcard Mk4 at the best price?

Always buy Coinkite Coldcard Mk4 from the official Coinkite store — never from Amazon, eBay, or third-party marketplaces, even if the price looks better. Hardware wallets have been physically tampered with in the supply chain before (compromised devices shipped to unsuspecting buyers, then drained the moment funds were loaded). Buying direct from Coinkite gets you a sealed unit with full warranty, firmware integrity, and a clean chain of custody. Free shipping and occasional discounts at the source make the price difference negligible anyway.

Do Coinkite Coldcard Mk4 and Foundation Passport Prime come with a warranty?

Yes — both ship with a manufacturer warranty (typically 1–2 years) when bought from the official store. That said, a hardware wallet warranty is mostly about hardware defects, not lost funds. If the device fails, the manufacturer will replace it — but your seed phrase or backup cards are what actually restore your crypto onto the new device. The warranty is real but secondary; what protects your funds is your backup discipline, not a piece of paper from {{wallet1}} or {{wallet2}}.