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  3. Shell vs Classic 1S

Keycard Shell vs OneKey Classic 1S

What Shell does better (13) and where Classic 1S wins (8) — every spec side by side.

Keycard Shell
Keycard · 2025Shell
5.0Score
13 advantages≈ €110
vs
OneKey Classic 1S
OneKey · 2024Classic 1S
8.4Score
8 advantages≈ €90
Higher score
9.2Security8.1
5.9Open source9.3
2.6Bitcoin features6.0
4.0Ease of use5.8
9.2Connectivity7.2

Why is Shell better than Classic 1S?

  1. Air-gapped signingYes · Classic 1S: No
  2. Anti-klepto (anti-exfil) signingYes · Classic 1S: No
  3. QR code cameraYes · Classic 1S: No
  4. Compatible third-party wallets7 vs 4+75%
  5. Battery capacity800 mAh vs 110 mAh7.3×
  6. Duress PIN / decoy walletYes · Classic 1S: No
  7. Shamir backup (SLIP-39)Yes · Classic 1S: No
  8. SeedQR backupYes · Classic 1S: No
  9. NFC backup cardYes · Classic 1S: No
  10. NFCYes · Classic 1S: No
  11. Animated QR (UR)Yes · Classic 1S: No
  12. Colour screenYes · Classic 1S: No

Why is Classic 1S better than Shell?

  1. TaprootNo · Shell: Yes
  2. Mobile appNo · Shell: Yes
  3. Thickness19 mm vs 5.2 mm3.7×
  4. Brick / wipe PINNo · Shell: Yes
  5. BluetoothNo · Shell: Yes
  6. Warranty (months)0 vs 12
  7. Desktop appNo · Shell: Yes
  8. FIDO2 / U2F security keyNo · Shell: Yes
Specifications

Side by side

Keycard ShellKeycard Shell≈ €1105.0
OneKey Classic 1SOneKey Classic 1S≈ €908.4
Security
Secure Element chipYesYes
Secure Element certificationEAL6+EAL6+
Air-gapped signingYesNo
100% air-gappedNoNo
Supply-chain & tamper protectionYesYes
Secure bootYes—
Anti-klepto (anti-exfil) signingYesNo
Firmware & open source
Open-source firmwareYesYes
Source code availableYesYes
Reproducible buildsYesYes
Firmware licenceMITGPLv3
Upgradable firmwareYesYes
Firmware update viaUSBUSB, Bluetooth
Bitcoin-only firmware / editionNoNo
Device lock
PIN lockYesYes
PIN entered on the deviceYesYes
Fingerprint unlockNoNo
Duress PIN / decoy walletYesNo
Brick / wipe PINNoYes
Wipe after failed attemptsYesYes
Time-delayed unlockNoNo
Anti-phishing wordsNoNo
Keys & backup
BIP39 passphraseYesYes
Shamir backup (SLIP-39)YesNo
Seed XORNoNo
BIP85 child seedsNoNo
24-word seedYesYes
SeedQR backupYesNo
microSD backupNoNo
NFC backup cardYesNo
User-added entropy (dice)NoNo
Stateless use (no stored keys)YesNo
Multiple seeds on one deviceYesNo
Bitcoin features
MultisigYesYes
TaprootNoYes
MiniscriptNoNo
Message signingNo—
Coin controlYesYes
Own node connectionYesYes
Tor supportYesYes
Replace-by-feeYesYes
Silent PaymentsNoNo
Spending limitsNoNo
TestnetYesYes
Supported assets
Altcoins & tokensYesYes
Bitcoin onlyNoNo
Connectivity
Signing connectivityUSB-C, NFC, QR codeUSB-C, Bluetooth
USBYesYes
USB-CYesYes
BluetoothNoYes
NFCYesNo
QR code cameraYesNo
Animated QR (UR)YesNo
microSD signingNoNo
Screen & input
ScreenYesYes
Screen size2″2″
Screen typeTFT IPSOLED
Screen resolution240 × 320128 × 64
TouchscreenNoNo
Colour screenYesNo
Gorilla GlassNoNo
ControlsButtonsButtons
QWERTY keyboardYesNo
Battery & power
Built-in batteryYesYes
Battery capacity800 mAh110 mAh
Removable batteryYesNo
Wireless chargingNoNo
Design
Weight—20 g
Length105 mm86 mm
Width65 mm52 mm
Thickness19 mm5.2 mm
MaterialsABS PlasticPlastic
Water / dust resistance—No
Several colours availableNoNo
Warranty (months)012
Assembled inChinaHong Kong
DIY build possibleYesNo
Apps
Official apps—Windows, macOS, Linux, Android, iOS, Browser extension
Desktop appNoYes
Mobile appNoYes
Works with wallet appsBitcoin Safe, Nunchuk, Cove, Sparrow, Specter Desktop, BlueWallet, BullElectrum, Sparrow, Specter Desktop, Blockstream Green
Compatible third-party wallets74
Other features
FIDO2 / U2F security keyNoYes
Password managerNoNo
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