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Coinkite COLDCARD Q, BitBox02 Nova or BitBox02?

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

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In short

Transaction approval (iPhone) is confirmed only for Coinkite COLDCARD Q and BitBox02 Nova.

Coinkite COLDCARD QOne edition

Price at Coinkite

BitBox02 NovaMulti-coin edition

Price at BitBox

Choose this edition at the store.

BitBox02Multi-coin edition

Price at BitBox

Choose this edition at the store.

COLDCARD Q

NovaMultiple cryptocurrencies

Approve transactions

Computer: Coinkite COLDCARD Q:
microSDSparrow · Bitcoin
QRSparrow · Bitcoin
USBSparrow · BitcoinQ already set up and unlocked · USB enabled · data cable required; BitBox02 Nova:
USBBitBoxApp · Bitcoin / Ethereum; BitBox02:
USBBitBoxApp · Bitcoin / Ethereum
iPhone: Coinkite COLDCARD Q:
NFCNunchuk · Bitcoin
iPhone · Nunchuk · NFC · BitcoinSupport for wallet setup is unconfirmed; BitBox02 Nova:
BluetoothBitBoxApp · Bitcoin / EthereumMust stay plugged in; BitBox02:
Not supported
Android: Coinkite COLDCARD Q:
NFCNunchuk · Bitcoin
Android · Nunchuk · NFC · BitcoinSupport for wallet setup is unconfirmed; BitBox02 Nova:
USBBitBoxApp · Bitcoin / EthereumPhone needs USB OTG; BitBox02:
USBBitBoxApp · Bitcoin / Ethereum

Where they differ

Cryptocurrencies: Coinkite COLDCARD Q:Bitcoin-only; BitBox02 Nova:Multiple cryptocurrencies; BitBox02:Multiple cryptocurrencies
Controls / Display: Coinkite COLDCARD Q:Physical buttonsDisplay: Display without touch input; BitBox02 Nova:Touch sensorsDisplay: Display without touch input; BitBox02:Touch sensorsDisplay: Display without touch input
Wallet recovery: Coinkite COLDCARD Q:Recovery phrase; BitBox02 Nova:microSD backup and recovery phrase; BitBox02:microSD backup and recovery phrase
Operating power: Coinkite COLDCARD Q:Batteries or USB power; BitBox02 Nova:USB power; BitBox02:USB power

Not fully confirmed

Battery: Coinkite COLDCARD Q:Replaceable batteries; BitBox02 Nova:Not recorded; BitBox02:Not recorded

Before you choose

Consider

Coinkite COLDCARD QNeeds a compatible wallet app; follow the current COLDCARD advisory for firmware updates and migration of affected existing wallets.

BitBox02 NovaOn iPhone and iPad, Bluetooth carries the data but the wallet still needs a physical power connection. You control it by touching its edges, not the screen. BitBoxApp on iPhone and iPad guides firmware updates when a compatible version is offered.

BitBox02This model cannot sign with an iPhone. BitBox02 Nova is a different model with iPhone support.

Apps and requirements

Show detailsHide details

Connectivity

Coinkite COLDCARD Q

Computer

SparrowmicroSDBitcoinWindows · macOS · Linux

Connection requirements

Sparrow exchanges unsigned and signed Bitcoin transaction files (PSBTs) with Q through microSD. Your computer needs a compatible card reader.

SparrowQRBitcoinWindows · macOS · Linux

Connection requirements

Set up Q’s wallet in Sparrow. Q scans the unsigned transaction QR, then Sparrow uses your computer’s camera to scan the signed result from Q.

SparrowUSBBitcoinWindows · macOS · LinuxQ already set up and unlocked · USB enabled · data cable required

Connection requirements

Set up Q’s wallet in Sparrow and exchange unsigned and signed Bitcoin transaction files (PSBTs) over USB. Q must already be initialized and unlocked, with USB enabled and a data-capable USB-C cable.

iPhone · Android

NunchukNFCBitcoinSupport for wallet setup is unconfirmed

Connection requirements

Use Nunchuk on a compatible NFC phone, with an already initialized Q powered on and NFC enabled, to exchange Bitcoin transaction files (PSBTs).

BitBox02 Nova

Computer

BitBoxAppUSBBitcoin / EthereumWindows · macOS · Linux

Connection requirements

Ethereum requires the Multi edition. A Bitcoin-only hardware edition cannot be converted to Multi.

iPhone

BitBoxAppBluetoothBitcoin / EthereumMust stay plugged in

Connection requirements

With an iPhone, plug BitBox02 Nova into the phone or another suitable power source. It uses Bluetooth to exchange data. Ethereum needs the Multi edition; the Bitcoin-only edition cannot be changed to Multi.

Android

BitBoxAppUSBBitcoin / EthereumPhone needs USB OTG

Connection requirements

Your Android phone needs USB OTG support to connect to Nova over USB. Ethereum requires the Multi edition; a Bitcoin-only device cannot be changed to Multi.

BitBox02

Computer

BitBoxAppUSBBitcoin / EthereumWindows · macOS · Linux

Connection requirements

Ethereum requires the Multi edition. A Bitcoin-only hardware edition cannot be converted to Multi.

Android

BitBoxAppUSBBitcoin / Ethereum

Connection requirements

Ethereum requires the Multi edition. A Bitcoin-only hardware edition cannot be converted to Multi.

Hardware detailsDifferent: 5 · Same: 2 · Not fully recorded: 8Show details (15)Hide details

Coinkite COLDCARD QBitBox02 NovaBitBox02

Display

Display type: Coinkite COLDCARD Q:LCD; BitBox02 Nova:OLED; BitBox02:OLED
Screen diagonal: Coinkite COLDCARD Q:Sources disagreeCoinkite lists 3.2 inches on the Q product page and 2.3 inches in its Q documentation overview. The screen diagonal remains unresolved.; BitBox02 Nova:Not recorded; BitBox02:Not recorded
Resolution: Coinkite COLDCARD Q:320 × 240 px; BitBox02 Nova:128 × 64 px; BitBox02:128 × 64 px
Colour mode: Coinkite COLDCARD Q:Colour; BitBox02 Nova:Monochrome; BitBox02:Monochrome

Size and weight

Dimensions: Coinkite COLDCARD Q:120 × 75 × 22 mmDimensions as listed by the manufacturer; BitBox02 Nova:54.5 × 25.4 × 9.6 mmDimensions as listed by the manufacturer · Includes the connector; BitBox02:54.5 × 25.4 × 9.6 mmDimensions as listed by the manufacturer · Includes the connector
Weight without batteries: Coinkite COLDCARD Q:93 g; BitBox02 Nova:Not recorded; BitBox02:Not recorded
Device weight: Coinkite COLDCARD Q:Not recorded; BitBox02 Nova:13 g; BitBox02:12 g

Power and charging

Replaceable cells: Coinkite COLDCARD Q:3 × AAA; BitBox02 Nova:Not recorded; BitBox02:Not recorded

Device connections

USB port: USB-CAll three
Memory card slot: microSDAll three

Security and software

Security chip: Coinkite COLDCARD Q:Microchip ATECC608; Maxim DS28C36B; BitBox02 Nova:OPTIGA Trust M V3; BitBox02:ATECC608B

Processor

Core and clock speed: Coinkite COLDCARD Q:Not recorded; BitBox02 Nova:Cortex-M4F · 120 MHz; BitBox02:Cortex-M4F · 120 MHz
Controllers: Coinkite COLDCARD Q:Not recorded; BitBox02 Nova:ATSAMD51J20A · DA14531; BitBox02:ATSAMD51J20A

Key dates

Announced: Coinkite COLDCARD Q:Not recorded; BitBox02 Nova:June 20, 2025; BitBox02:Not recorded
Available since: Coinkite COLDCARD Q:Not recorded; BitBox02 Nova:Not recorded; BitBox02:September 25, 2019