Secure ElementNFC13+ networks
OneKey Pro 2 vs Tangem Wallet (2 Cards)
OneKey Pro 2 offers a 3.54" color touchscreen, open-source code, Shamir Backup. Tangem Wallet (2 Cards) features seedless design, IP69K water resistance — and costs $244 less.
2 wallets
Screen vs Screenless
Open-source vs Closed
$244 price gap
Quick VerdictUpdated 2026
OneKey Pro 2
Best overall
$299
Tangem Wallet (2 Cards)
Best value
$54.90
Security notice ·
October 2026: free replacement for OneKey devices bought from CryptoBilis
After Ledger found hardware implants in Ledger devices sold by the reseller CryptoBilis, OneKey ended CryptoBilis’s authorization, paused new resellers and began reviewing existing ones. OneKey says no OneKey user has reported losing funds and does not report finding a tampered OneKey device.
As a precaution, OneKey replaces for free any OneKey model bought from CryptoBilis between 1 March and 12 October 2026, activated or not, with proof of purchase. Apply through OneKey support by 31 December 2026; the old device does not need to be returned.
OneKey’s advice: do not activate an unused CryptoBilis unit. If a device from CryptoBilis already holds funds, move them now to a wallet with a newly generated recovery phrase rather than waiting for the replacement.
This concerns one reseller, not the device design, so it does not change our ratings.
Sources
Security notice ·
July 2026: laboratory attack on Tangem card access codes
Ledger’s Donjon security team, which works for a competing manufacturer, published a laser fault-injection attack on Tangem cards on 9 July 2026. With a card physically in hand, the researchers opened it and used precisely timed laser pulses to skip a check, which let them set a new access code without knowing the old one and then sign transactions. The private key is not extracted. According to Donjon, the attack applies to all Tangem cards in circulation, and because the cards have no firmware update mechanism it cannot be patched on cards already sold.
The attack requires stealing the card, visibly damaging it, laboratory equipment costing roughly $250,000 and specialist skills. Tangem calls the risk to everyday users “virtually non-existent” and says no funds have been lost to this method; none has been reported in the wild.
What this means for owners: the practical exposure is a lost or stolen card. Keep track of your cards, and if one goes missing, move funds to a wallet the missing card cannot access.
Sources
Open-formula rating|40+ criteria analyzed|Last updated October 2026|No sponsored rankingsSee methodology
Key Takeaways
- OneKey Pro 2 wins in security (88/100)
- Usability scores are close (within 4 points)
- Tangem Wallet (2 Cards) is more affordable ($54.90)
- Both support 100+ cryptocurrencies
- Best for beginners: Tangem Wallet (2 Cards) (easier setup)
OneKey Pro 2 vs Tangem Wallet (2 Cards): Key Differences
Both OneKey Pro 2 and Tangem Wallet (2 Cards) 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 Pro 2 (OneKey) lands at 76/100, Tangem Wallet (2 Cards) (Tangem) at 66/100. The $244 gap between $299 and $54.90 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.
Winner by Category
Which wallet leads in each area
Security
OneKey Pro 2Winner88/100
Tangem Wallet (2 Cards)71/100
Ease of Use
OneKey Pro 282/100
Tangem Wallet (2 Cards)Winner86/100
Price
OneKey Pro 2$299
Tangem Wallet (2 Cards)Winner$54.90
Coin Support
TieOneKey Pro 2100+
Tangem Wallet (2 Cards)100+
Privacy
OneKey Pro 2Winner31/100
Tangem Wallet (2 Cards)11/100
Beginner Friendly
TieOneKey Pro 282/100
Tangem Wallet (2 Cards)86/100
Comparing:
OneKey Pro 2
Tangem Wallet (2 Cards)
Comparison Table
Key specifications for your decision
| Criteria | OneKey Pro 2 OneKey $299 | Tangem Wallet (2 Cards) Tangem $54.90 |
|---|---|---|
Overall Rating | 76 | 66 |
Security | 88 | 71 |
Usability | 82 | 86 |
Price | $299 | $54.90 |
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 | Client app only | No |
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 | Yes | No |
USB | Yes | No |
Networks | 100+ | 100+ |
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 | Color AMOLED Touchscreen | None |
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 + Shamir | Multi-card |
Setup Time | ~7 min | ~3 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 | IP56 | IP69K |
Our Verdict: OneKey Pro 2 or Tangem Wallet (2 Cards)?
Choose OneKey Pro 2 if...
- You want on-device transaction verification via a built-in screen
- You want verifiable, open-source firmware and software
- You want advanced backup with Shamir Secret Sharing
- You are comfortable managing a seed phrase
Skip OneKey Pro 2 if...
- ×Budget is tight — you'd be better served by a cheaper option in this comparison
- ×You want a seedless backup design instead of a 12/24-word phrase
Choose Tangem Wallet (2 Cards) if...
- You prefer a compact, screenless form factor
- You trust third-party audits (Kudelski Security (2018, card firmware), Riscure (2023, card firmware), Cure53 (Q4 2025, mobile SDKs)) over open-source review
- You prefer seedless backup via multiple linked cards
- You want to save $244 without sacrificing core security
Skip Tangem Wallet (2 Cards) if...
- ×You want to verify transactions on the wallet's own screen
- ×You manage crypto from a desktop (no Windows, macOS, or Linux app)
- ×Open-source firmware is non-negotiable for you
Our pick for most users
Based on the overall rating, OneKey Pro 2 scores 76/100 and offers the best balance of security, usability, and value in this comparison.
Bottom line: Usability is close enough to call a wash. OneKey Pro 2 pulls ahead on security — which is where it matters most. If budget is real, Tangem Wallet (2 Cards) comes in $244 cheaper without giving up the basics.
Price: OneKey Pro 2 vs Tangem Wallet (2 Cards)
OneKey Pro 2 costs $299, while Tangem Wallet (2 Cards) is priced at $54.90 — a $244 difference. The extra cost of OneKey Pro 2 gets you a 10-point higher overall rating. For budget buyers, Tangem Wallet (2 Cards) offers solid security at a lower price point.
Who Should Pick Which Wallet
Recommendations based on real-world use cases
OneKey Pro 2
$299Best for:
Water resistanceBuilt-in batteryFull node supportWalletConnect support
Pros
- +Four THD89 secure elements (CC EAL6+), firmware signatures checked on every boot, on-device Clear Signing
- +QR air-gap mode with the built-in camera; USB, Bluetooth and NFC data are disabled in that mode
- +3.54-inch AMOLED touchscreen (1024×604, up to 800 nits) with fingerprint unlock and randomized PIN pad
- +BIP39 (12/24 words), 20-word SLIP-39 shares, passphrase wallets and a bundled NFC SeedCard
Cons
- −Pro 2 firmware source is not public yet, so OneKey's open-source claim and builds cannot be checked
- −Two low Keylabs findings remain open; rollback protection is not yet anchored in the secure elements
- −The OneKey App sends usage analytics and offers no user setting to turn them off
- −Tor, Coin Control, TOTP and Apple Find My are announced but not available at launch
Tangem Wallet (2 Cards)
$54.90Best for:
AffordableWater resistanceWalletConnect supportAndroid support
Pros
- +$54.90 for two cards, one of the lowest prices for a secure-element wallet
- +Samsung S3D232A secure element; chip platform certified CC EAL6+ (ANSSI-CC-2024/15)
- +Both cards hold the same key and can each sign; no seed phrase to store unless one is chosen
- +No battery, port or moving parts; Tangem rates the cards IP69K
Cons
- −No screen on the card: addresses and amounts can only be checked in the phone app
- −Only one backup card: if one card is lost, a single remaining card is all that protects the funds
- −Closed, non-updatable firmware: Ledger Donjon's 2026 laser reset of the access code cannot be patched
- −App analytics (Firebase, Amplitude, AppsFlyer) run by default with no switch in the app
Best for These Profiles
🎓
Beginner / first wallet
Tangem Wallet (2 Cards) — simpler setup, lower learning curve
🔒
Security maximalist
OneKey Pro 2 — highest security score, on-device verification
💰
Budget-conscious buyer
Tangem Wallet (2 Cards) — solid security at $54.90
✈️
Frequent traveler
Tangem Wallet (2 Cards) — 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.
OneKey Pro 2 vs Tangem Wallet (2 Cards): Frequently Asked Questions
Answers about OneKey Pro 2 vs Tangem Wallet (2 Cards)
Is OneKey Pro 2 better than Tangem Wallet (2 Cards)?
On the numbers, OneKey Pro 2 comes out ahead — 76/100 vs 66/100 — but 'better' isn't quite the right frame. Tangem Wallet (2 Cards) is more affordable at $54.90, which matters more for some buyers than overall score does. If overall rating is what you actually weigh first, take OneKey Pro 2. If budget is the constraint that shapes your decision, Tangem Wallet (2 Cards) is the smarter buy. Either way, both are real hardware wallets — neither is a mistake.
How much do OneKey Pro 2 and Tangem Wallet (2 Cards) cost?
OneKey Pro 2 costs $299, Tangem Wallet (2 Cards) costs $54.90. 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.
What happens if I lose all my Tangem Wallet (2 Cards) cards?
Funds are unrecoverable. There's no seed phrase to fall back on, no recovery service, no manufacturer override — that's the explicit design trade-off. The mitigation is the multi-card set: every card you receive is a complete, independent backup of the same wallet. Realistic plan: keep one card on you, one at home in a safe, and one with a trusted person or in a bank deposit box. Lose any two and you're still fine. Lose all of them and the coins are gone forever.
Which wallet is better for DeFi and Web3: OneKey Pro 2 or Tangem Wallet (2 Cards)?
OneKey Pro 2 — and the gap is bigger than the spec sheets make it look. OneKey Pro 2 has WalletConnect built in, which means you sign DeFi transactions directly from a hardware wallet without exposing keys to a hot wallet. Tangem Wallet (2 Cards) 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 Pro 2 vs Tangem Wallet (2 Cards): which has better backup options?
OneKey Pro 2 uses a 24-word seed phrase with optional Shamir Secret Sharing for split backups. Tangem Wallet (2 Cards) uses multiple linked NFC cards as encrypted backups (no 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.
Is OneKey Pro 2 more secure than Tangem Wallet (2 Cards) because it's open-source?
Not automatically — and this is a more nuanced question than the marketing suggests. Open-source (OneKey Pro 2) lets anyone (researchers, hobbyists, paranoid users) read the firmware and verify there are no backdoors. That's the strongest possible trust signal. Tangem Wallet (2 Cards) keeps source code private but compensates with paid third-party audits from Kudelski Security (2018, card firmware), Riscure (2023, card firmware), Cure53 (Q4 2025, mobile SDKs) and certifications like CC EAL5+/EAL6+ on the secure element. Open-source is the more transparent posture; audited closed-source can still be cryptographically airtight. Our honest take: if open-source is the deciding factor for you philosophically, pick OneKey Pro 2 — but don't dismiss Tangem Wallet (2 Cards) as 'less secure' purely on that basis.
Is Tangem Wallet (2 Cards) safe to use without a screen?
It can be — depending on your threat model. Tangem Wallet (2 Cards) shows transaction details on your phone or computer, which is the same screen that could be compromised by malware. The classic attack: malware swaps the destination address right before you sign, and you'd never know. OneKey Pro 2 lets you verify the actual address and amount on the hardware wallet itself, a screen the host computer can't touch. For day-to-day transactions under a few thousand dollars, the convenience of Tangem Wallet (2 Cards) is fine. For larger transfers, the on-device screen on OneKey Pro 2 is the kind of thing you only miss once.
Can Tangem Wallet (2 Cards) be used with a desktop computer?
No — Tangem Wallet (2 Cards) is mobile-only with no Windows, macOS, or Linux app available. If you do most of your crypto work on a laptop or desktop (DeFi power users, traders, anyone running a full node), this is a real limitation, not a minor inconvenience. OneKey Pro 2 supports all three desktop operating systems with a polished companion app, and that's the practical pick if desktop is your main interface.
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More Comparisons
Compare OneKey Pro 2 with other wallets
Official store
OneKey Pro 2$299 · 76/100
Tangem Wallet (2 Cards)$54.90 · 66/100
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