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Blockstream Jade Classic or Coinkite COLDCARD Q?

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

Coinkite COLDCARD Q

One edition

Wallet 2

Add a wallet

Wallet 3

Filters

Your cryptocurrencies: Bitcoin

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In short

Recorded differences: Operating power and Battery.

Blockstream Jade ClassicOne edition

Price at Blockstream

Coinkite COLDCARD QOne edition

Price at Coinkite

Approve transactions

Computer: Blockstream Jade Classic:
USBBlockstream app · Bitcoin
QRSparrow · BitcoinWebcam required for QR
Computer · Sparrow · QR · BitcoinSupport for wallet setup is unconfirmed; Coinkite COLDCARD Q:
microSDSparrow · Bitcoin
QRSparrow · Bitcoin
USBSparrow · BitcoinQ already set up and unlocked · USB enabled · data cable required
iPhone: Blockstream Jade Classic:
BluetoothBlockstream app · Bitcoin; Coinkite COLDCARD Q:
NFCNunchuk · Bitcoin
iPhone · Nunchuk · NFC · BitcoinSupport for wallet setup is unconfirmed
Android: Blockstream Jade Classic:
USB · BluetoothBlockstream app · Bitcoin; Coinkite COLDCARD Q:
NFCNunchuk · Bitcoin
Android · Nunchuk · NFC · BitcoinSupport for wallet setup is unconfirmed

Where they differ

Operating power: Blockstream Jade Classic:Battery or USB power; Coinkite COLDCARD Q:Batteries or USB power
Battery: Blockstream Jade Classic:Rechargeable; Coinkite COLDCARD Q:Replaceable batteries

What they have in common

Controls / Display: Physical buttonsDisplay: Display without touch input
Both
Wallet recovery: Recovery phrase
Both

Not fully confirmed

Cryptocurrencies: Blockstream Jade Classic:Not confirmed; Coinkite COLDCARD Q:Bitcoin-only

Before you choose

Consider

Blockstream Jade ClassicA small screen with wheel and button controls. QR signing needs a compatible app; Liquid uses USB or Bluetooth.

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

Apps and requirements

Show detailsHide details

Connectivity

Blockstream Jade Classic

Computer

Blockstream appUSBBitcoinWindows · macOS · Linux

Connection requirements

This workflow uses Bitcoin mainnet in the Blockstream app. The standard firmware also supports Liquid, so it is not Bitcoin-only.

SparrowQRBitcoinWindows · macOS · LinuxWebcam required for QRSupport for wallet setup is unconfirmed

Connection requirements

Prepare Jade QR mode and use a webcam with Sparrow. QR signing supports Bitcoin, not Liquid.

iPhone

Blockstream appBluetoothBitcoin

Connection requirements

This workflow uses Bitcoin mainnet in the Blockstream app. The standard firmware also supports Liquid, so it is not Bitcoin-only.

Android

Blockstream appUSB · BluetoothBitcoin

Connection requirements

This workflow uses Bitcoin mainnet in the Blockstream app. The standard firmware also supports Liquid, so it is not Bitcoin-only.

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).

Hardware detailsDifferent: 2 · Same: 2 · Not fully recorded: 11Show details (15)Hide details

Blockstream Jade ClassicCoinkite COLDCARD Q

Display

Colour mode: ColourBoth
Display type: Blockstream Jade Classic:Not recorded; Coinkite COLDCARD Q:LCD
Screen diagonal: Blockstream Jade Classic:Not recorded; 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.
Resolution: Blockstream Jade Classic:Not recorded; Coinkite COLDCARD Q:320 × 240 px

Size and weight

Dimensions: Blockstream Jade Classic:60 × 24 × 17 mmDimensions as listed by the manufacturer; Coinkite COLDCARD Q:120 × 75 × 22 mmDimensions as listed by the manufacturer
Device weight: Blockstream Jade Classic:21 g; Coinkite COLDCARD Q:Not recorded
Weight without batteries: Blockstream Jade Classic:Not recorded; Coinkite COLDCARD Q:93 g

Power and charging

Battery capacity: Blockstream Jade Classic:240 mAh; Coinkite COLDCARD Q:Not recorded
Charging methods: Blockstream Jade Classic:USB-C; Coinkite COLDCARD Q:Not recorded
Replaceable cells: Blockstream Jade Classic:Not recorded; Coinkite COLDCARD Q:3 × AAA