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Blockstream Jade Core 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

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In short

Recorded differences: Operating power and Battery.

Blockstream Jade CoreOne edition

Price at Blockstream

Coinkite COLDCARD QOne edition

Price at Coinkite

Approve transactions

Computer: Blockstream Jade Core:
USBBlockstream app · Bitcoin; Coinkite COLDCARD Q:
microSDSparrow · Bitcoin
QRSparrow · Bitcoin
USBSparrow · BitcoinQ already set up and unlocked · USB enabled · data cable required
iPhone: Blockstream Jade Core:
BluetoothBlockstream app · Bitcoin; Coinkite COLDCARD Q:
NFCNunchuk · Bitcoin
iPhone · Nunchuk · NFC · BitcoinSupport for wallet setup is unconfirmed
Android: Blockstream Jade Core:
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 Core:USB power; Coinkite COLDCARD Q:Batteries or USB power
Battery: Blockstream Jade Core:No battery; 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 Core:Not confirmed; Coinkite COLDCARD Q:Bitcoin-only

Before you choose

Consider

Blockstream Jade CoreiPhone connects by Bluetooth and a computer by USB. Cryptocurrency support also depends on the installed firmware.

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 Core

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.

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: 3 · Same: 1 · Not fully recorded: 8Show details (12)Hide details

Blockstream Jade CoreCoinkite COLDCARD Q

Display

Colour mode: Blockstream Jade Core:Sources disagreeBlockstream’s Jade lineup article describes a color display on Core; the Jade Plus store comparison says Core has no display. The sources conflict on Core’s display.; Coinkite COLDCARD Q:Colour
Display type: Blockstream Jade Core:Not recorded; Coinkite COLDCARD Q:LCD
Screen diagonal: Blockstream Jade Core: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 Core:Not recorded; Coinkite COLDCARD Q:320 × 240 px

Size and weight

Dimensions: Blockstream Jade Core:65 × 30 × 12 mmDimensions as listed by the manufacturer; Coinkite COLDCARD Q:120 × 75 × 22 mmDimensions as listed by the manufacturer
Device weight: Blockstream Jade Core:20 g; Coinkite COLDCARD Q:Not recorded
Weight without batteries: Blockstream Jade Core:Not recorded; Coinkite COLDCARD Q:93 g