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Arculus Cold Storage Wallet or Block Bitkey?

The exact editions, side by side: how you’ll use them and the limits to know.

Arculus Cold Storage Wallet

One edition

Change wallet: Arculus Cold Storage Wallet

Block Bitkey

One edition

Change wallet: Block Bitkey
Add a wallet

In short

Recorded differences: Cryptocurrencies and Controls / Display.

Approve transactions

Computer
Arculus Cold Storage Wallet:
Support for signing is unconfirmed
Block Bitkey:
Support for signing is unconfirmed
iPhone
Arculus Cold Storage Wallet:
NFCArculus Wallet · Bitcoin / Ethereum
Block Bitkey:
NFCBitkey app · Bitcoin
Android
Arculus Cold Storage Wallet:
NFCArculus Wallet · Bitcoin / Ethereum
Block Bitkey:
NFCBitkey app · Bitcoin

Where they differ

Cryptocurrencies
Arculus Cold Storage Wallet:Multiple cryptocurrencies
Block Bitkey:Bitcoin-only
Controls / Display
Arculus Cold Storage Wallet:No controls on the walletDisplay: No device display
Block Bitkey:Touchscreen
Wallet recovery
Arculus Cold Storage Wallet:Recovery phrase
Block Bitkey:Phone, hardware and server keys with assisted recovery. Check service and country availability.
Battery
Arculus Cold Storage Wallet:No battery
Block Bitkey:Rechargeable

Not fully confirmed

Operating power
Arculus Cold Storage Wallet:Not confirmed
Block Bitkey:Not recorded

Before you choose

Consider
Arculus Cold Storage WalletYou review payments and enter your PIN on the phone. You enter recovery words there when restoring the wallet. The card has no screen or fingerprint reader; phone biometrics are an optional way to unlock the app.
Block BitkeyTwo of three keys are needed. Recovery involves your phone, cloud storage and the service, rather than a conventional recovery phrase.

Apps and requirements

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Connectivity
Arculus Cold Storage Wallet

iPhone

Arculus WalletNFCBitcoin / Ethereum
Connection requirements

Use an iPhone XR or later and keep the card against the phone until setup or signing finishes. Full current asset support requires card firmware 2.0 or later; older Edition Zero and Edition One cards support fewer assets.

Android

Arculus WalletNFCBitcoin / Ethereum
Connection requirements

Use an NFC-capable Android phone. For a Redmi phone, check support for your model with Arculus before buying. Keep the card against the phone until setup or signing finishes. Full current asset support requires card firmware 2.0 or later; older Edition Zero and Edition One cards support fewer assets.

Block Bitkey

iPhone · Android

Bitkey appNFCBitcoin
Connection requirements

Needs an NFC phone and the Bitkey app. Setup requires a cloud backup and email alerts; recovery depends on the keys and backup access you retain.

Hardware detailsDifferent: 3 · Same: 0 · Not fully recorded: 6Show details (9)Hide details
Arculus Cold Storage WalletBlock Bitkey

Memory

Non-volatile chip memory (NVM)
Arculus Cold Storage Wallet:512 KB
Block Bitkey:Not recorded

Size and weight

Dimensions
Arculus Cold Storage Wallet:Not confirmed
Block Bitkey:66 × 60 × 13.6 mmDimensions as listed by the manufacturer
Device weight
Arculus Cold Storage Wallet:Not confirmed
Block Bitkey:79 g

Power and charging

Charging methods
Arculus Cold Storage Wallet:No battery
Block Bitkey:USB-C

Materials and finish

Materials
Arculus Cold Storage Wallet:Stainless steel · PVC
Block Bitkey:Corian Solid Surface

Security and software

Security chip
Arculus Cold Storage Wallet:CC EAL6+
Block Bitkey:Not recorded
Device software
Arculus Cold Storage Wallet:JavaCardOS
Block Bitkey:Not recorded

Display

Display type
Arculus Cold Storage Wallet:No built-in display
Block Bitkey:OLED

Device connections

USB port
Arculus Cold Storage Wallet:Not recorded
Block Bitkey:USB-C

Official stores

Next steps
Arculus Cold Storage WalletOne edition

Documentation checked Oct 18, 2026

Block BitkeyOne edition

Documentation checked Sep 29, 2026

Replace Arculus Cold Storage Wallet

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Current wallets

Discontinued