Compare

Blockstream Jade Classic or Coinkite COLDCARD Mk5?

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

Coinkite COLDCARD Mk5

One edition

Wallet 2

Add a wallet

Wallet 3

@media(max-width:700px){.stage-comparison [data-column]{display:block!important;order:initial!important}.stage-comparison .stage-row{grid-template-columns:repeat(var(--comparison-columns),minmax(0,1fr))}.stage-comparison .stage-table-head>.stage-label,.stage-comparison .stage-column-chips{display:none}.stage-comparison .stage-table{--rule-columns:var(--comparison-columns)}.stage-comparison .stage-note-name{position:static;width:auto;height:auto;clip-path:none}.stage-comparison .stage-colhead{display:flex!important}.stage-comparison .stage-label{grid-column:1/-1}.stage-comparison .stage-store-row{grid-template-columns:1fr}.stage-comparison .stage-hardware .hardware-row{grid-template-columns:repeat(var(--comparison-columns),minmax(0,1fr));display:grid}.stage-comparison .stage-hardware .hardware-row dt{grid-column:1/-1}.stage-comparison .stage-hardware.no-mobile-data,.stage-comparison .stage-hardware .hardware-group.no-mobile-data{display:block}} /* Only the real no-script, compact, three-selection view uses named full-width entries. */ @media(max-width:700px){ .stage-comparison[data-count="3"] .stage-row{grid-template-columns:minmax(0,1fr)} .stage-comparison[data-count="3"] .stage-table{--rules:none} .stage-comparison[data-count="3"] .stage-table-head{position:static} .stage-comparison[data-count="3"] .stage-colhead{container-type:normal;border-bottom:1px solid var(--line)} .stage-comparison[data-count="3"] .stage-colhead small{display:block} .stage-comparison[data-count="3"] .stage-colhead-identity>span>a{overflow-wrap:anywhere} .stage-comparison[data-count="3"] .stage-cell-model-context{position:static!important;display:block;width:auto!important;height:auto!important;padding:0!important;margin:0 0 4px!important;overflow:visible!important;clip:auto!important;clip-path:none!important;white-space:normal!important;font-weight:600} .stage-comparison[data-count="3"] .stage-fact-row>[data-column]+[data-column]{border-top:1px solid var(--line)} .stage-comparison[data-count="3"] .stage-hardware .hardware-group{display:block} .stage-comparison[data-count="3"] .stage-hardware .hardware-row,.stage-comparison[data-count="3"] .stage-hardware .hardware-reading{grid-template-columns:minmax(0,1fr)} .stage-comparison[data-count="3"] .stage-hardware .hardware-model-context{position:static;display:block;width:auto;height:auto;overflow:visible;clip-path:none;white-space:normal;margin-bottom:4px;font-weight:600} .stage-comparison[data-count="3"] .stage-hardware .hardware-row>[data-column]+[data-column]{border-top:1px solid var(--line)} .stage-comparison[data-count="3"] .stage-hardware .differences-only .hardware-group.same-all,.stage-comparison[data-count="3"] .stage-hardware .differences-only .hardware-row.same-all{display:none} }

In short

Recorded differences: Operating power and Battery.

Blockstream Jade ClassicOne edition

Price at Blockstream

Coinkite COLDCARD Mk5One 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 Mk5:
microSDSparrow · Bitcoin
USBSparrow · BitcoinMk5 set up and unlocked · verified current firmware · USB data enabled · data cable
iPhone: Blockstream Jade Classic:
BluetoothBlockstream app · Bitcoin; Coinkite COLDCARD Mk5:
NFCNunchuk · Bitcoin
iPhone · Nunchuk · NFC · BitcoinSupport for wallet setup is unconfirmed
Android: Blockstream Jade Classic:
USB · BluetoothBlockstream app · Bitcoin; Coinkite COLDCARD Mk5:
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 Mk5:USB power
Battery: Blockstream Jade Classic:Rechargeable; Coinkite COLDCARD Mk5:No battery

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 Mk5: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 Mk5Needs USB-C power during use. Check the current seed-generation advisory before reusing an older wallet; updating alone does not repair an affected seed.

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 Mk5

Computer

SparrowmicroSDBitcoinWindows · macOS · Linux

Connection requirements

Sparrow exchanges unsigned and signed Bitcoin transaction files (PSBTs) with Mk5 through microSD. Your computer needs a compatible card reader.

SparrowUSBBitcoinWindows · macOS · LinuxMk5 set up and unlocked · verified current firmware · USB data enabled · data cable

Connection requirements

Start with a Mk5 already initialized under its setup guide, running the verified current recommended standard firmware. Keep Mk5 unlocked, enable USB data and use a data-capable USB-C cable. Then add its wallet to Sparrow and sign Bitcoin transactions over USB.

iPhone · Android

NunchukNFCBitcoinSupport for wallet setup is unconfirmed

Connection requirements

Use Nunchuk on a compatible NFC phone with an already initialized Mk5, powered on and with NFC enabled. Import the wallet’s public account into Nunchuk before exchanging Bitcoin transaction files (PSBTs).

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

Blockstream Jade ClassicCoinkite COLDCARD Mk5

Display

Colour mode: Blockstream Jade Classic:Colour; Coinkite COLDCARD Mk5:Monochrome
Display type: Blockstream Jade Classic:Not recorded; Coinkite COLDCARD Mk5:LCD
Screen diagonal: Blockstream Jade Classic:Not recorded; Coinkite COLDCARD Mk5:1.54″

Size and weight

Dimensions: Blockstream Jade Classic:60 × 24 × 17 mmDimensions as listed by the manufacturer; Coinkite COLDCARD Mk5:Not recorded
Device weight: Blockstream Jade Classic:21 g; Coinkite COLDCARD Mk5:Not recorded

Power and charging

Battery capacity: Blockstream Jade Classic:240 mAh; Coinkite COLDCARD Mk5:No battery
Charging methods: Blockstream Jade Classic:USB-C; Coinkite COLDCARD Mk5:No battery