Coldcard MK4 vs Ledger Flex
Key differences
- Coldcard MK4 is Bitcoin-only with dual secure elements and air-gapped workflows; Ledger Flex supports 5,500+ assets with a large E Ink® touchscreen.
- Ledger Flex is easier for mobile users with Bluetooth and app integrations but costs more at $249 vs Coldcard's $167.94.
- Coldcard is built for advanced users needing full control and offline multisig; Ledger Flex suits users looking for sleek design and broad coin support.
Jump to section
Price
$167.94 USD
$249 USD
Launch
2022
2024
Screen Size
128x64 pixel OLED display
2.84” 16 grayscale E Ink® touchscreen
Box Includes
- COLDCARD™ Mk4
- Ledger Flex hardware wallet
- USB-C to USB-A cable
- getting started leaflet
- 3 recovery sheets
- keychain strap
Security Features
Passphrase Support
Passphrase Entry
Device
Device or computer
PIN Protection
Shamir Secret Sharing
Tor Support
Usage
Platforms
- Windows
- macOS
- Linux
- Android
- iOS
- Windows
- macOS
- Linux
- Android
- iOS
Supported Coins
Bitcoin Only
Manage 5,500+ coins and tokens, including Bitcoin, Ethereum and XRP, and install up to 100 apps.
Interfaces
- Numeric Keypad
- NFC-V
- USB-C
- AirGap SneakerNET
- Virtual Disk
- MicroSD Card
USB-C, Bluetooth
Technical Details
Secure Elements
Dual Secure Elements - ATECC608 & DS28C36B
CC EAL6+ Certified Secure Element
Open Source
Firmware & Software
Software
FIDO Authentication
Size
86x50x7.5 mm (3.39x1.97x0.3 in)
78.4x56.5x7.7 mm (3.08x2.22x0.30 in)
Weight
30g (1.1oz)
57.5g (2.0oz)
Bitcoin-Only Version
Integration & Multisig
Integrations
Company Details
Parent Company
Coinkite
Ledger
Parent Company Founded
2011
2014
Security Incidents
No known security incidents
No known security incidents
BitBox02
Bitkey
Blockstream Jade
Blockstream Jade Plus
Ledger Nano X
Ledger Stax
Passport Core
Trezor Safe 3
Trezor Safe 5