Crypto hardware wallet comparison Coldcard Mk4 vs BitBox02 Bitcoin-only edition

New comparison

Our impressions

Coldcard Mk4

BitBox02 Bitcoin-only edition

Pros
not reviewed yet
not reviewed yet
Cons
not reviewed yet
not reviewed yet
Verdict
not reviewed yet
not reviewed yet

Disclaimer: Our impressions are based on a compilation of factors tailored to the average user’s perspective. It is also important to note that whether a feature is a “pro” or “con” can depend on your situation and preferences. What may be an advantage in one scenario could be a challenge in another, and vice versa. Therefore, while reviewing these points, it’s essential to consider your unique requirements and circumstances when making decisions. This list aims to provide an idea of what to anticipate, but it is not the ultimate guide to determining whether something will work for you or not.

Key features

Coldcard Mk4

BitBox02 Bitcoin-only edition

Release year

2022

2019

Supported coins

Supports only Bitcoin

Supports only Bitcoin

For multi-coin support see BitBox02 multi-coin edition

It is not possible to convert a BitBox02 Bitcoin-only edition into a BitBox02 Multi edition or vice-versa. The BitBox02 bootloader prevents firmware downgrades and installing firmware for a different edition of the BitBox02 (Multi or Bitcoin-only) as otherwise that would be a security attack vector.

Open source
  • Firmware
  • Companion software
  • Firmware
  • Companion software
Seedphrase support
  • BIP-39 (Mnemonic phrase)
  • Passphrase
  • BIP-39 (Mnemonic phrase)
  • Passphrase
Security protections
  • Secure element
  • On device PIN entry
  • Factory reset with wrong PIN
  • Factory reset with decoy PIN
  • Fake wallet with duress PIN
  • On device passphrase entry
  • On device recovery

Dual Secure Element
Multiple Trick PIN features
– Duress PIN
– Countdown to Brick (or Reset) PIN
– Brick Me PIN
– Login Countdown
On device recovery requires a previous SD Card backup or XPRV private key file on SD Card

  • Secure element
  • On device PIN entry

Dual chip security architecture
Secure chip: ATECC608B; True random number generator (NIST SP 800-90A/B/C)
Anti-klepto mitigates the nonce covert channel attack
Physical protections
Security audit & bug bounty program

Platform compatibility
  • Windows
  • macOS
  • Linux
  • Windows
  • macOS
  • Linux
  • Android

Technical specifications

Coldcard Mk4

BitBox02 Bitcoin-only edition

Dimensions

88 mm x 52 mm x 10 mm
3.46 in x 2.05 in x 0.39 in

54.5 mm x 25.4 mm x 9.6 mm
2.15 in x 1 in x 0.38 in

Weight

30 g
1.06 oz

12 g
0.42 oz

Display
  • Monochrome
  • OLED

128 x 64 pixels

  • Monochrome
  • OLED

128 x 64 Pixels

Connectivity
  • USB-C
  • NFC
  • USB-C
Storage
  • microSD card
  • microSD card
Processor

120 MHz CPU

ATSAMD51J20A
120 Mhz 32-bit Cortex-M4F
True random number generator

Housing

Plastics

Polycarbonate

Where to buy

Coldcard Mk4

BitBox02 Bitcoin-only edition