Coldcard (MK4) vs. Ledger Flex

Which one is better in 2026? In-depth comparison of Coldcard (MK4) and Ledger Flex

Coldcard (MK4) and Ledger Flex are two popular hardware wallets with different costs, ease of use, and compatibility.

We've compared Coldcard (MK4) head-to-head with Ledger Flex to help you decide which is best for your needs.

	Select a product	Select a product
	Coldcard (MK4) ₹16,999 Save ₹6,000 1	Ledger Flex ₹29,999 Save ₹7,000 8
Warranty	—	1 year
Connectors	USB-C	USB-C
Wireless	NFC	Bluetooth NFC
Seed Phrase	BIP39	BIP39
Release Year	2022	2023
Features	Air-gapped PSBT	Fido U2F OpenPGP
Works With	BTCPAY Bitcoin Core BlueWallet COLDCORE Casa Electrum Sparrow Wallet Specter Desktop Wasabi Wallet	BTCPAY Bitcoin Core BlueWallet COLDCORE Casa Coinbase Wallet Electrum MetaMask Phantom Rabby Rainbow Solflare Sparrow Wallet Specter Desktop WalletConnect Wasabi Wallet
Compatible With	—	Android Linux Windows iOS macOS
Coins	Bitcoin (BTC)	Supports over 5000+ coins
Touchscreen	—	Yes
Display Type	OLED	E-Ink
Display Resolution	128 x 64	400 x 672
Battery Type	—	Lithium-ion
Battery Capacity	—	200mAh
Authentication	—	PIN
Open Source	Yes	—
Certifications	—	CC EAL6+
Desktop	—	Ledger Live
iOS	—	Ledger Live - Web3 Wallet
Android	—	Ledger Live - Web3 Wallet
Controllers	—	STM32F042
Secure Elements	ATECC608 DS28C36B	ST33K1M5
Size	—	78.4mm x 56.5mm x 7.7mm
Weight	—	57.5g
Materials	—	Aluminum Plastic