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Foundation Passport Prime 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

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In short

Transaction approval (Computer) is confirmed only for Coinkite COLDCARD Mk5.

Foundation Passport PrimeOne edition

Price at Foundation

Coinkite COLDCARD Mk5One edition

Price at Coinkite

Approve transactions

Computer: Foundation Passport Prime:
Support for signing is unconfirmed
Sparrow · Not confirmed; Coinkite COLDCARD Mk5:
microSDSparrow · Bitcoin
USBSparrow · BitcoinMk5 set up and unlocked · verified current firmware · USB data enabled · data cable
iPhone: Foundation Passport Prime:
BluetoothEnvoy · Bitcoin
QREnvoy · Bitcoin
iPhone · Envoy · QR · BitcoinSupport for wallet setup is unconfirmed; Coinkite COLDCARD Mk5:
NFCNunchuk · Bitcoin
iPhone · Nunchuk · NFC · BitcoinSupport for wallet setup is unconfirmed
Android: Foundation Passport Prime:
BluetoothEnvoy · Bitcoin
QREnvoy · Bitcoin
Android · Envoy · QR · BitcoinSupport for wallet setup is unconfirmed; Coinkite COLDCARD Mk5:
NFCNunchuk · Bitcoin
Android · Nunchuk · NFC · BitcoinSupport for wallet setup is unconfirmed

Where they differ

Controls / Display: Foundation Passport Prime:Touchscreen; Coinkite COLDCARD Mk5:Physical buttonsDisplay: Display without touch input
Wallet recovery: Foundation Passport Prime:Magic Backups needs two of three recovery parts: two are on Keycards and one is backed up through Envoy and the phone’s cloud backup. A new wallet can instead use a manual backup: any two of three physical Keycards, or recovery words.; Coinkite COLDCARD Mk5:Recovery phrase
Battery: Foundation Passport Prime:Rechargeable; Coinkite COLDCARD Mk5:No battery

Not fully confirmed

Cryptocurrencies: Foundation Passport Prime:Not confirmed; Coinkite COLDCARD Mk5:Bitcoin-only
Operating power: Foundation Passport Prime:Not recorded; Coinkite COLDCARD Mk5:USB power

Before you choose

Consider

Foundation Passport PrimeInitial setup uses Envoy and Bluetooth. To restore existing words without Magic Backups, ask Foundation support to confirm the steps for your KeyOS version before setup. Ethereum and Solana need the separate Legacy Mode beta on a computer.

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

Foundation Passport Prime

Computer

SparrowNot confirmed

Connection requirements

Foundation lists Sparrow for multisig wallets with Prime as a cosigner. We have not confirmed the exact Prime–Sparrow import and transaction-transfer route. Check that integration with Foundation before proceeding; Passport Core or generic QR support is insufficient.

iPhone · Android

EnvoyBluetoothBitcoin

Connection requirements

For Bitcoin on a phone, Envoy connects to Prime through QuantumLink Bluetooth.

EnvoyQRBitcoinSupport for wallet setup is unconfirmed

Connection requirements

Set up Prime with Envoy over Bluetooth first. After setup, Envoy can transfer Bitcoin transaction data to and from Prime using QR codes.

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: 4 · Same: 1 · Not fully recorded: 8Show details (13)Hide details

Foundation Passport PrimeCoinkite COLDCARD Mk5

Display

Display type: Foundation Passport Prime:IPS LCD; Coinkite COLDCARD Mk5:LCD
Screen diagonal: Foundation Passport Prime:3.5″; Coinkite COLDCARD Mk5:1.54″
Colour mode: Foundation Passport Prime:Not recorded; Coinkite COLDCARD Mk5:Monochrome

Size and weight

Dimensions: Foundation Passport Prime:55.5 × 104.8 × 11 mmDimensions as listed by the manufacturer; Coinkite COLDCARD Mk5:Not recorded
Device weight: Foundation Passport Prime:93 g; Coinkite COLDCARD Mk5:Not recorded

Power and charging

Battery capacity: Foundation Passport Prime:1,100 mAh; Coinkite COLDCARD Mk5:No battery
Charging methods: Foundation Passport Prime:USB-C; Coinkite COLDCARD Mk5:No battery

Materials and finish

Materials: Foundation Passport Prime:Body: Aluminium (Anodized finish); Coinkite COLDCARD Mk5:Not recorded

Device connections

USB port: USB-CBoth
Memory card slot: Foundation Passport Prime:Not recorded; Coinkite COLDCARD Mk5:microSD

Security and software

Security chip: Foundation Passport Prime:ATECC608C; Coinkite COLDCARD Mk5:Not recorded
Device software: Foundation Passport Prime:KeyOS; Coinkite COLDCARD Mk5:Not recorded