Crypto hardware wallet comparison Coldcard Mk4 vs Blockstream Jade

Our impressions

Coldcard Mk4

Blockstream Jade

Pros
not reviewed yet
  • Camera for fully air-gapped transactions + QR code support in hardware
  • Firmware with radio and without radio support (Bluetooth + Wifi)
  • Wifi capable (already on board but currently disabled)
  • 100% open source: firmware, hardware + casing
Cons
not reviewed yet
  • Only supports Bitcoin and Liquid assets
Verdict
not reviewed yet

Please note that we do not yet own a Blockstream Jade. Our verdict currently is based on available online resources only. We love the 100% open source approach and canโ€™t wait to get our hands on one.

If your use-case is Bitcoin ecosystem only, this seems like a very good option to secure your valuable Bitcoin assets.

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

Blockstream Jade

Release year

2022

2021

Supported coins

Supports only Bitcoin

Supports only Bitcoin

  • Bitcoin and Liquid sidechain are supported
Open source
  • Firmware
  • Companion software
  • Firmware
  • Companion software
  • Hardware

Community resources

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

  • On device PIN entry
  • Air-gapped QR code

Leverages a blind oracle model, which acts like a virtual secure element

Platform compatibility
  • Windows
  • macOS
  • Linux
  • Windows
  • macOS
  • Linux
  • Android
  • iOS
Additional features
  • Built-in camera and QR code support
  • Firmware with radio and without radio support

Technical specifications

Coldcard Mk4

Blockstream Jade

Dimensions

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

60 mm x 24 mm x 17 mm
2.36 in x 0.94 in x 0.67 in

Weight

30 g
1.06 oz

107 g
3.77 oz

Display
  • Monochrome
  • OLED

128 x 64 pixels

  • Color

1.14-inch IPS LCD
240 x 135 pixels
RGB 16-bit

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

120 MHz CPU

Wifi chip is present, but currently disabled

Safety & Certifications

200 Mhz dual core processor

Housing

Plastics

Plastics case

Where to buy

Coldcard Mk4

Blockstream Jade