Secure ElementNFC13+ networks
Keycard Shell vs Tangem Ring
Keycard Shell offers open-source code, Shamir Backup, full desktop support. Tangem Ring features seedless design, IP69K water resistance, NFC connectivity — and costs $31 less.
2 wallets
Screen vs Screenless
Open-source vs Closed
No IP rating vs IP69K
Quick VerdictUpdated 2026
Keycard Shell
Best overall
$129
Tangem Ring
Tangem
$160
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
- Keycard Shell wins in security (87/100)
- Tangem Ring wins in ease of use (70/100)
- Keycard Shell is more affordable ($129)
- Best for beginners: Tangem Ring (easier setup)
Keycard Shell vs Tangem Ring: Key Differences
Both Keycard Shell and Tangem Ring 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: Keycard Shell (Keycard) lands at 66/100, Tangem Ring (Tangem) at 62/100. The $31 gap between $129 and $160 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
Keycard ShellWinner87/100
Tangem Ring71/100
Ease of Use
Keycard Shell60/100
Tangem RingWinner70/100
Price
Keycard ShellWinner$129
Tangem Ring$160
Coin Support
Keycard Shell2+
Tangem RingWinner100+
Privacy
Keycard ShellWinner62/100
Tangem Ring11/100
Beginner Friendly
Keycard Shell60/100
Tangem RingWinner70/100
Comparing:
Keycard Shell
Tangem Ring
Comparison Table
Key specifications for your decision
| Criteria | Keycard Shell Keycard $129 | Tangem Ring Tangem $160 |
|---|---|---|
Overall Rating | 66 | 62 |
Security | 87 | 71 |
Usability | 60 | 70 |
Price | $129 | $160 |
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 | Firmware | 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 | No | No |
USB | Yes | No |
Networks | 2+ | 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 | 2.0" TFT IPS Colour, 240x320, Adjustable Brightness | 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 | ~15 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 | None | IP69K |
Our Verdict: Keycard Shell or Tangem Ring?
Choose Keycard Shell 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 Keycard Shell if...
- ×You want wireless NFC connection — no cables
- ×You want a seedless backup design instead of a 12/24-word phrase
- ×You need a device with an official IP rating against water and dust
Choose Tangem Ring 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 wireless NFC connectivity — no cables needed
Skip Tangem Ring 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
Both wallets score similarly (66 vs 62/100) — your choice depends on which features matter most to you.
Bottom line: Keycard Shell is the safer bet on security; day to day, Tangem Ring is the easier driver. If budget is real, Keycard Shell comes in $31 cheaper without giving up the basics.
Price: Keycard Shell vs Tangem Ring
Keycard Shell costs $129, while Tangem Ring is priced at $160 — a $31 difference. The extra cost of Tangem Ring gets you a -4-point higher overall rating. For budget buyers, Keycard Shell offers solid security at a lower price point.
Who Should Pick Which Wallet
Recommendations based on real-world use cases
Keycard Shell
$129Best for:
Built-in batteryFull node supportAndroid supportiOS support
Pros
- +Private keys stay on a removable Keycard with an NXP JCOP4 P71 secure element (CC EAL6+ chip certification)
- +No Wi-Fi, Bluetooth, cellular or NFC on the Shell; signing runs over QR codes via a built-in camera
- +MIT-licensed firmware with reproducible builds; hardware design files published under CERN-OHL-S
- +Two Keycards in the box, so a second card holding the same seed can serve as a working backup
Cons
- −Bitcoin and EVM chains only; Solana and other non-secp256k1 networks are not supported
- −Taproot arrived only in firmware 1.4.0 for Keycard v4 cards; the product page still lists it as unsupported
- −Needs a third-party software wallet to build and broadcast every transaction
- −No published third-party security audit of the Shell firmware or the Keycard applet
Tangem Ring
$160Best for:
Water resistanceWalletConnect supportAndroid supportiOS support
Pros
- +Samsung S3D232A secure element; the chip platform is certified CC EAL6+ (ANSSI-CC-2024/15)
- +Set includes two backup cards; ring and cards hold the same key and each can sign on its own
- +No seed phrase by default; a 12- or 24-word BIP39 phrase can be created at setup instead
- +No battery, port or buttons; zirconia ceramic shell rated IP69K
Cons
- −No screen: recipient and amount can only be checked in the phone app
- −Closed, non-updatable firmware: Ledger Donjon's 2026 laser reset of the access code cannot be patched
- −Tangem app starts Firebase, Amplitude and AppsFlyer analytics by default with no in-app opt-out
- −Phone only: no desktop app, USB or Bluetooth; no multisig, coin control or Tor
Best for These Profiles
Pre-Purchase Checklist
Important points to verify regardless of your choice
All wallets ship from official manufacturer stores with full warranty.
Keycard Shell vs Tangem Ring: Frequently Asked Questions
Answers about Keycard Shell vs Tangem Ring
Is Keycard Shell better than Tangem Ring?
On the numbers, Keycard Shell comes out ahead — 66/100 vs 62/100 — but 'better' isn't quite the right frame. Tangem Ring is easier to use (70/100 usability), which matters more for some buyers than overall score does. If overall rating is what you actually weigh first, take Keycard Shell. If ease of use is the constraint that shapes your decision, Tangem Ring is the smarter buy. Either way, both are real hardware wallets — neither is a mistake.
How much do Keycard Shell and Tangem Ring cost?
Keycard Shell costs $129, Tangem Ring costs $160. 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 Ring 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.
Is Keycard Shell waterproof?
No — Keycard Shell has no official water or dust resistance rating, so treat it like any other small electronic. A spilled drink or a rainstorm in your jacket pocket is enough to brick it. Tangem Ring, by contrast, carries an IP69K rating, which means it's tested against dust and pressurized water — that's the device you'd actually take camping or to a beach. For most people, water resistance isn't a deciding factor, but it matters if you travel light or carry your wallet daily.
Which wallet is better for DeFi and Web3: Keycard Shell or Tangem Ring?
Keycard Shell — and the gap is bigger than the spec sheets make it look. Keycard Shell has WalletConnect built in, which means you sign DeFi transactions directly from a hardware wallet without exposing keys to a hot wallet. Tangem Ring 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.
Keycard Shell vs Tangem Ring: which has better backup options?
Keycard Shell uses a 24-word seed phrase with optional Shamir Secret Sharing for split backups. Tangem Ring 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 Keycard Shell more secure than Tangem Ring because it's open-source?
Not automatically — and this is a more nuanced question than the marketing suggests. Open-source (Keycard Shell) lets anyone (researchers, hobbyists, paranoid users) read the firmware and verify there are no backdoors. That's the strongest possible trust signal. Tangem Ring 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 Keycard Shell — but don't dismiss Tangem Ring as 'less secure' purely on that basis.
Is Tangem Ring safe to use without a screen?
It can be — depending on your threat model. Tangem Ring 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. Keycard Shell 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 Ring is fine. For larger transfers, the on-device screen on Keycard Shell is the kind of thing you only miss once.
Made your decision?
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More Comparisons
Compare Keycard Shell with other wallets
Official store
Keycard Shell$129 · 66/100
Tangem Ring$160 · 62/100
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