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Keycard Shell vs Trezor Model One
Keycard Shell stands out with open-source code, Shamir Backup. Trezor Model One is a solid alternative — Trezor Model One costs $80 less.
2 wallets
$80 price gap
iOS support differs
Quick VerdictUpdated 2026
Keycard Shell
Best overall
$129
Trezor Model One
Discontinued
$49
Security notice ·
October 2026: suspected implant in a Trezor bought from CryptoBilis
On 28 October 2026 Trezor received a report from a buyer in Indonesia of an extra circuit board inside a Trezor Safe 5 bought in August 2026 from CryptoBilis, the same Southeast Asian reseller whose Ledger devices carried hardware implants. According to the report, the board sits between the main board and the screen, reads what the screen shows, including the recovery phrase, and sends it out over a mobile network. Trezor has not yet examined the device, calls the report credible and is having the unit sent to its lab.
Trezor says it has no reports involving any other reseller and no evidence that any customer has lost funds; the person who reported the implant had already moved their funds. Trezor removed CryptoBilis from its authorized resellers on 9 October 2026.
Trezor’s advice applies to every Trezor model bought from CryptoBilis from March 2026 onwards:
- If the device is not set up yet, do not set it up and never enter an existing recovery phrase on it.
- If you already use it, move your funds as soon as possible to a new wallet with a newly generated recovery phrase. Restoring the old phrase on another device does not help.
- Keep the device and contact Trezor Support: affected buyers can get a new device or a voucher. Do not open it; Trezor says weighing it is not a reliable test.
The report concerns how one device reached a buyer, not the device design, so it does not change our ratings. We will update this notice when Trezor publishes the result of its examination.
Sources
Open-formula rating|40+ criteria analyzed|Last updated November 2026|No sponsored rankingsSee methodology
Key Takeaways
- Keycard Shell wins in security (87/100)
- Keycard Shell wins in ease of use (60/100)
- Trezor Model One is more affordable ($49)
- Best for beginners: Trezor Model One (easier setup)
Keycard Shell vs Trezor Model One: Key Differences
Both Keycard Shell and Trezor Model One 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, Trezor Model One (Trezor) at 44/100. The $80 gap between $129 and $49 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
Trezor Model One29/100
Ease of Use
Keycard ShellWinner60/100
Trezor Model One44/100
Price
Keycard Shell$129
Trezor Model OneWinner$49
Coin Support
Keycard Shell2+
Trezor Model OneWinner47+
Privacy
Keycard Shell62/100
Trezor Model OneWinner79/100
Beginner Friendly
Keycard ShellWinner60/100
Trezor Model One44/100
Comparing:
Keycard Shell
Trezor Model One
Comparison Table
Key specifications for your decision
| Criteria | Keycard Shell Keycard $129 | Trezor Model One Trezor $49 |
|---|---|---|
Overall Rating | 66 | 44 |
Security | 87 | 29 |
Usability | 60 | 44 |
Price | $129 | $49 |
A secure element is a tamper-resistant chip built to store secrets and resist physical attacks such as side-channel analysis and fault injection. Learn more — Secure Element | Yes | No |
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 — Open Source | Firmware | Firmware |
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 — Bluetooth | No | No |
USB | Yes | Yes |
Networks | 2+ | 47+ |
Wallet apps | Sparrow, Specter, BlueWallet, MetaMask, Rabby | — |
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 — Passphrase | 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 — Display | 2.0" TFT IPS Colour, 240x320, Adjustable Brightness | OLED (Monochrome, 128x64) |
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 — Backup Method | 24-word + Shamir | 24-word seed |
Setup Time | ~15 min | ~5 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 — Water Resist | None | None |
Which other apps each device works with, and how it connects: software compatibility matrix
Our Verdict: Keycard Shell or Trezor Model One?
Choose Keycard Shell if...
- You want advanced backup with Shamir Secret Sharing
- You need iPhone (iOS) compatibility
Skip Keycard Shell if...
- ×Budget is tight — you'd be better served by a cheaper option in this comparison
Trezor Model One is discontinued
Trezor no longer sells this model. If you already own one, the full review covers how to keep using it; for a new purchase, pick one of the models on this page that are still on sale.
Our pick for most users
Based on the overall rating, Keycard Shell scores 66/100 and offers the best balance of security, usability, and value in this comparison.
Bottom line: Keycard Shell is our pick — it leads on both security and ease of use, and the overall score reflects that. If budget is real, Trezor Model One comes in $80 cheaper without giving up the basics.
Price: Keycard Shell vs Trezor Model One
Keycard Shell costs $129, while Trezor Model One is priced at $49 — a $80 difference. The extra cost of Keycard Shell gets you a 22-point higher overall rating. For budget buyers, Trezor Model One 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
Trezor Model One
$49Best for:
AffordableCoin controlTor supportFull node support
Pros
- +Open-source firmware and hardware, with reproducible firmware builds
- +Trezor promises critical security updates until at least 2036; latest firmware released October 2026
- +Standard 24-word BIP39 backup, restorable in other BIP39 wallets
- +Passphrase support, which protects funds even against the known physical attack
Cons
- −No secure element: the seed can be extracted with physical access unless a passphrase is used
- −Discontinued: Trezor no longer sells it, and new coin support is not promised
- −No clear signing for most transactions: the device shows raw data
- −Passphrase and recovery words are typed on the computer, not on the device
Pre-Purchase Checklist
Important points to verify regardless of your choice
Every wallet linked here ships from its manufacturer's official store with full warranty.
Keycard Shell vs Trezor Model One: Frequently Asked Questions
Answers about Keycard Shell vs Trezor Model One
Is Keycard Shell better than Trezor Model One?
On the numbers, Keycard Shell comes out ahead — 66/100 vs 44/100 — but 'better' isn't quite the right frame. Trezor Model One is more affordable at $49, which matters more for some buyers than overall score does. If overall rating is what you actually weigh first, take Keycard Shell. If budget is the constraint that shapes your decision, Trezor Model One is the smarter buy. Either way, both are real hardware wallets — neither is a mistake.
How much do Keycard Shell and Trezor Model One cost?
Keycard Shell costs $129, Trezor Model One costs $49. 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 Trezor Model One be used on iPhone (iOS)?
No — Trezor Model One 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, Keycard Shell 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: Keycard Shell or Trezor Model One?
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. Trezor Model One 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 Trezor Model One: which has better backup options?
Keycard Shell uses a 24-word seed phrase with optional Shamir Secret Sharing for split backups. Trezor Model One 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 Keycard Shell at the best price?
Always buy Keycard Shell from the official Keycard 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 Keycard 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 Keycard Shell and Trezor Model One 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}}.
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