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Coldcard MK4 vs Passport Core

Coldcard MK4
Overall Rating
Passport Core
Overall Rating
Visit Coldcard's Site
Visit Foundation's Site
Coldcard MK4 logo Visit Coldcard's Website Passport Core logo Visit Foundation's Website

Key differences

  1. Coldcard MK4 offers deeper offline workflows with microSD + keypad input, while Passport Core has a more modern UI and built-in camera for air-gapped QR signing.
  2. Coldcard is more affordable at $167.94 vs Passport Core's $199, though both are Bitcoin-only and open-source with strong multisig support.
  3. Passport Core avoids USB and wireless entirely for maximum isolation, while Coldcard includes USB-C and NFC for optional connectivity.


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Price

Coldcard MK4

$167.94 USD

Passport Core

$199 USD

Launch

Coldcard MK4

2022

Passport Core

2025

Screen Size

Coldcard MK4

128x64 pixel OLED display

Passport Core

1.8” color IPS screen with Gorilla Glass

Box Includes

Coldcard MK4

  • COLDCARD™ Mk4

Passport Core

Passport Core, Industrial-grade microSD card, MicroSD adapters for Android and iPhone, User-replaceable battery, Premium USB-C cable

Security Features

Passphrase Support

Coldcard MK4

Passport Core

Passphrase Entry

Coldcard MK4

Device

Passport Core

-

PIN Protection

Coldcard MK4

Passport Core

Shamir Secret Sharing

Coldcard MK4

Passport Core

Tor Support

Coldcard MK4

Passport Core

Usage

Platforms

Coldcard MK4

  • Windows
  • macOS
  • Linux
  • Android
  • iOS

Passport Core

  • Windows
  • macOS
  • Linux
  • Android
  • iOS

Supported Coins

Coldcard MK4

Bitcoin Only

Passport Core

Bitcoin Only

Interfaces

Coldcard MK4

Numeric Keypad, NFC-V, USB-C, AirGap SneakerNET, Virtual Disk, MicroSD Card

Passport Core

Omnivision Camera, MicroSD Port

Technical Details

Secure Elements

Coldcard MK4

  • Dual Secure Elements (ATECC608 & DS28C36B)
  • AES-256-CTR encrypted storage
  • COLDCARD Co-Signing (CCC)

Passport Core

Airgapped, Easy passphrase entry, Security check for supply chain tampering, Security lights, Anti-phishing words

Open Source

Coldcard MK4


Firmware & Software

Passport Core


Software and Hardware

FIDO Authentication

Coldcard MK4

Passport Core

Size

Coldcard MK4

86x50x7.5 mm (3.39x1.97x0.3 in)

Passport Core

39 x 110.8 x 19.2 mm (1.54 x 4.36 x 0.76 in)

Weight

Coldcard MK4

30g (1.1oz)

Passport Core

163g (5.7oz)

Bitcoin-Only Version

Coldcard MK4

Passport Core

Integration & Multisig

Integrations

Coldcard MK4

  • Nunchuk
  • Sparrow
  • Bitcoin Core
  • Electrum
  • BlueWallet
  • Casa
  • Fully Noded
  • Specter Desktop
  • Unchained
  • Wasabi Wallet
  • Coldcore
  • Theya

Passport Core

  • Direct exchange integrations

Multisig Support

Coldcard MK4

Passport Core

  • Casa

Company Details

Parent Company

Coldcard MK4

Coinkite

Passport Core

Foundation

Parent Company Founded

Coldcard MK4

2011

Passport Core

2020

Security Incidents

Coldcard MK4

No known security incidents

Passport Core

No known security incidents

Related Comparisons

Coldcard MK4 vs

Passport Core vs