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

New comparison

Our impressions

BitBox02 Bitcoin-only edition

Coldcard Mk4

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

BitBox02 Bitcoin-only edition

Coldcard Mk4

Release year

2019

2022

Supported coins

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.

Supports only Bitcoin

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

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

  • 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

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

Technical specifications

BitBox02 Bitcoin-only edition

Coldcard Mk4

Dimensions

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

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

Weight

12 g
0.42 oz

30 g
1.06 oz

Display
  • Monochrome
  • OLED

128 x 64 Pixels

  • Monochrome
  • OLED

128 x 64 pixels

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

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

120 MHz CPU

Housing

Polycarbonate

Plastics

Where to buy

BitBox02 Bitcoin-only edition

Coldcard Mk4