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Coldcard MK4 vs Ledger Nano X

Coldcard MK4
Overall Rating
Ledger Nano X
Overall Rating
Visit Coldcard's Site
Visit Ledger's Site
Coldcard MK4 logo Visit Coldcard's Website Ledger Nano X logo Visit Ledger's Website

Key differences

  1. Coldcard MK4 is Bitcoin-only and built for extreme security with dual secure elements and air-gapped operation; Ledger Nano X supports 5,500+ coins with Bluetooth convenience.
  2. Ledger Nano X is slightly more affordable at $149 vs Coldcard's $167.94, and easier for beginners due to its companion app Ledger Live.
  3. Coldcard offers physical keypad entry and microSD air-gap transfers, while Ledger relies on computer or Bluetooth-based input—making Coldcard better for users prioritizing offline isolation.


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Price

Coldcard MK4

$167.94 USD

Ledger Nano X

$149 USD

Launch

Coldcard MK4

2022

Ledger Nano X

2019

Screen Size

Coldcard MK4

128x64 pixel OLED display

Ledger Nano X

1.09" Monochrome OLED display

Box Includes

Coldcard MK4

  • COLDCARD™ Mk4

Ledger Nano X

  • Nano X hardware wallet
  • USB-C to USB-A cable
  • getting started leaflet
  • 3 recovery sheets
  • keychain strap

Security Features

Passphrase Support

Coldcard MK4

Ledger Nano X

Passphrase Entry

Coldcard MK4

Device

Ledger Nano X

Computer

PIN Protection

Coldcard MK4

Ledger Nano X

Shamir Secret Sharing

Coldcard MK4

Ledger Nano X

Tor Support

Coldcard MK4

Ledger Nano X

Usage

Platforms

Coldcard MK4

  • Windows
  • macOS
  • Linux
  • Android
  • iOS

Ledger Nano X

  • Windows
  • macOS
  • Linux
  • Android
  • iOS

Supported Coins

Coldcard MK4

Bitcoin Only

Ledger Nano X

Secure and manage over 5,500 different coins and tokens including Bitcoin, Ethereum, XRP, USD Tether, Polkadot, Litecoin, and more.

Interfaces

Coldcard MK4

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

Ledger Nano X

USB-C, Bluetooth

Technical Details

Secure Elements

Coldcard MK4

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

Ledger Nano X

CC EAL5+ certified secure chip

Open Source

Coldcard MK4


Firmware & Software

Ledger Nano X


Software

FIDO Authentication

Coldcard MK4

Ledger Nano X

Size

Coldcard MK4

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

Ledger Nano X

72x18.6x11.75 mm (2.83x0.73x0.46 in)

Weight

Coldcard MK4

30g (1.1oz)

Ledger Nano X

34g (1.2oz)

Bitcoin-Only Version

Coldcard MK4

Ledger Nano X

Integration & Multisig

Integrations

Coldcard MK4

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

Ledger Nano X

Multisig Support

Coldcard MK4

Ledger Nano X

Company Details

Parent Company

Coldcard MK4

Coinkite

Ledger Nano X

Ledger

Parent Company Founded

Coldcard MK4

2011

Ledger Nano X

2014

Security Incidents

Coldcard MK4

No known security incidents

Ledger Nano X

A crypto user claims they lost $2.5 million in Bitcoin and NFTs from a Ledger Nano S, sparking scrutiny over Ledger's security. While the user insists the seed phrase was secure, the incident has reignited debate over hardware wallet vulnerabilities and possible user error.

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