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OneKey Classic 1S vs Coinkite Coldcard Mk4

OneKey Classic 1S offers open-source code. Coinkite Coldcard Mk4 features NFC connectivity — and costs $79 less.

2 wallets
USB vs NFC
$79 price gap
iOS support differs
Quick Verdict Updated 2026
OneKey Classic 1S
OneKey Classic 1S
Best overall
71 /100
Good
$99 View Best Price
Coinkite Coldcard Mk4
Coinkite Coldcard Mk4
Highest security
70 /100
Good
$177.94 View Best Price
Open-formula rating 40+ criteria analyzed Last updated May 2026 No sponsored rankings

Key Takeaways

  • Security scores are close (within 2 points)
  • Usability scores are close (within 1 points)
  • OneKey Classic 1S is more affordable ($99)
  • Best for beginners: OneKey Classic 1S (easier setup)

OneKey Classic 1S vs Coinkite Coldcard Mk4: Key Differences

Both OneKey Classic 1S and Coinkite Coldcard Mk4 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: OneKey Classic 1S (OneKey) lands at 71/100, Coinkite Coldcard Mk4 (Coinkite) at 70/100. The $79 gap between $99 and $177.94 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:

OneKey Classic 1S vs Coinkite Coldcard Mk4 vs Keystone Pro 3 OneKey Classic 1S vs Coinkite Coldcard Mk4 vs OneKey Pro

Winner by Category

Which wallet leads in each area

Security
Tie
OneKey Classic 1S98/100
Coinkite Coldcard Mk4100/100
Ease of Use
Tie
OneKey Classic 1S53/100
Coinkite Coldcard Mk452/100
Price
OneKey Classic 1S$99
Coinkite Coldcard Mk4$177.94
View Best Price OneKey Classic 1S
Coin Support
OneKey Classic 1S30+
Coinkite Coldcard Mk41+
View Best Price OneKey Classic 1S
Privacy
OneKey Classic 1S44/100
Coinkite Coldcard Mk475/100
View Best Price Coinkite Coldcard Mk4
Beginner Friendly
Tie
OneKey Classic 1S53/100
Coinkite Coldcard Mk452/100
Comparing:
OneKey Classic 1S
Coinkite Coldcard Mk4

Comparison Table

Key specifications for your decision

Criteria
OneKey Classic 1S
OneKey Classic 1S
OneKey
$99
View Best Price
Coinkite Coldcard Mk4
Coinkite Coldcard Mk4
Coinkite
$177.94
View Best Price
Overall Rating
71/10070/100
Security
98/100100/100
Usability
53/10052/100
Price
$99$177.94

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.

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YesYes

Open Source Firmware refers to firmware in hardware devices, like wallets, where the source code is publicly available, allowing transparency, auditability, and customization.

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YesYes

Bluetooth Connectivity enables wireless communication between devices, like hardware wallets and smartphones, using Bluetooth or Bluetooth Low Energy (BLE) for secure data transfer.

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YesNo
USB
YesYes
Networks
30+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.

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YesYes

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.

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OLEDOLED

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 seed24-word seed
Setup Time
~10 min~15 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.

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NoneNone

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Our Verdict: OneKey Classic 1S or Coinkite Coldcard Mk4?

Choose OneKey Classic 1S if...

  • You need iPhone (iOS) compatibility
  • You want to save $79 without sacrificing core security
  • You actively use DeFi and WalletConnect dApps

Skip OneKey Classic 1S if...

  • × You want wireless NFC connection — no cables
View Best Price — OneKey Classic 1S Full Review — OneKey Classic 1S

Choose Coinkite Coldcard Mk4 if...

  • You want wireless NFC connectivity — no cables needed
  • You run your own Bitcoin full node

Skip Coinkite Coldcard Mk4 if...

  • × You manage crypto from an iPhone (no iOS app here)
  • × Budget is tight — you'd be better served by a cheaper option in this comparison
  • × You actively use DeFi and need WalletConnect / dApp support
View Best Price — Coinkite Coldcard Mk4 Full Review — Coinkite Coldcard Mk4

Our pick for most users

Both wallets score similarly (71 vs 70/100) — your choice depends on which features matter most to you.

Bottom line: Both wallets are tightly matched on security and ease of use. The decision comes down to specifics: form factor, supported coins, and how each one fits your daily flow. If budget is real, OneKey Classic 1S comes in $79 cheaper without giving up the basics.

Price: OneKey Classic 1S vs Coinkite Coldcard Mk4

OneKey Classic 1S costs $99, while Coinkite Coldcard Mk4 is priced at $177.94 — a $79 difference. The extra cost of Coinkite Coldcard Mk4 gets you a -1-point higher overall rating. For budget buyers, OneKey Classic 1S offers solid security at a lower price point.

Buy OneKey Classic 1S — $ 99Buy Coinkite Coldcard Mk4 — $ 177.94

Who Should Pick Which Wallet

Recommendations based on real-world use cases

OneKey Classic 1S

$99
Lower priceGreat priceBuilt-in batteryCoin control
Pros
  • +EAL6+ certified secure element, highest grade among most rivals
  • +Fully open-source firmware with reproducible builds for independent auditing
  • +Triple connectivity: USB, Bluetooth, and QR code air-gapped signing
  • +Supports 5,000+ tokens across multiple chains out of the box
Cons
  • −No Shamir Secret Sharing; recovery limited to single 24-word BIP39 seed
  • −Plastic casing offers less physical durability than metal-bodied competitors
  • −No NFC support, limiting tap-to-sign workflows on compatible mobile devices
  • −Multisig implementation is basic, lacking advanced coordinator integrations
View Best PriceFull Review

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 PriceFull Review

Best for These Profiles

🎓
Beginner / first wallet
OneKey Classic 1S — simpler setup, lower learning curve
🔒
Security maximalist
Coinkite Coldcard Mk4 — highest security score, on-device verification
💰
Budget-conscious buyer
OneKey Classic 1S — solid security at $99
✈️
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 OneKey Classic 1SBuy Coinkite Coldcard Mk4

OneKey Classic 1S vs Coinkite Coldcard Mk4: Frequently Asked Questions

Answers about OneKey Classic 1S vs Coinkite Coldcard Mk4

Is OneKey Classic 1S better than Coinkite Coldcard Mk4?
On the numbers, OneKey Classic 1S comes out ahead — 71/100 vs 70/100 — but 'better' isn't quite the right frame. Coinkite Coldcard Mk4 scores higher in security (100/100), which matters more for some buyers than overall score does. If overall rating is what you actually weigh first, take OneKey Classic 1S. If security is the constraint that shapes your decision, Coinkite Coldcard Mk4 is the smarter buy. Either way, both are real hardware wallets — neither is a mistake.
How much do OneKey Classic 1S and Coinkite Coldcard Mk4 cost?
OneKey Classic 1S costs $99, Coinkite Coldcard Mk4 costs $177.94. 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, OneKey Classic 1S is the practical pick: it has a native iOS app and the full feature set works over Lightning or Bluetooth.
Which wallet is better for DeFi and Web3: OneKey Classic 1S or Coinkite Coldcard Mk4?
OneKey Classic 1S — and the gap is bigger than the spec sheets make it look. OneKey Classic 1S has WalletConnect built in, which means you sign DeFi transactions directly from a hardware wallet without exposing keys to a hot wallet. Coinkite Coldcard Mk4 can technically work with DeFi via third-party software, but every extra step is one more place an attacker can intercept the transaction you're approving. If you're going to be clicking 'Sign' on smart contracts more than once a month, the difference compounds fast.
OneKey Classic 1S vs Coinkite Coldcard Mk4: which has better backup options?
OneKey Classic 1S uses a standard 24-word seed phrase. Coinkite Coldcard Mk4 uses a standard 24-word seed phrase. 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 OneKey Classic 1S at the best price?
Always buy OneKey Classic 1S from the official OneKey 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 OneKey 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 OneKey Classic 1S and Coinkite Coldcard Mk4 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}}.

Made your decision?

Check out full reviews or find the best price from official vendors.

Buy OneKey Classic 1S OneKey Classic 1S Review
Buy Coinkite Coldcard Mk4 Coinkite Coldcard Mk4 Review

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