Ledger Flex vs. Coldcard (MK4)

Which one is better in 2025? In-depth comparison of Ledger Flex and Coldcard (MK4)

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

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

	Select a product	Select a product
	Ledger Flex ₹28,399 Save ₹8,600 4	Coldcard (MK4) ₹18,999 Save ₹4,000 1
Warranty	2 years	—
Connectors	USB-C	USB-C
Wireless	NFC	NFC
Seed Phrase	BIP39	BIP39
Release Year	2023	2022
Features	Fido U2F OpenPGP	Air-gapped PSBT
Works With	BTCPAY Bitcoin Core BlueWallet COLDCORE Casa Coinbase Wallet Electrum MetaMask Phantom Rabby Rainbow Solflare Sparrow Wallet Specter Desktop WalletConnect Wasabi Wallet	BTCPAY Bitcoin Core BlueWallet COLDCORE Casa Electrum Sparrow Wallet Specter Desktop Wasabi Wallet
Compatible With	Android Linux Windows iOS macOS	—
Coins	Supports over 5000+ coins	Bitcoin (BTC)
Touchscreen	Yes	—
Display Type	E-Ink	OLED
Display Resolution	400 x 672	128 x 64
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	ST33K1M5	ATECC608A DS28C36B
Size	78.4mm x 56.5mm x 7.7mm	—
Weight	57.5g	—
Materials	Aluminum Plastic	—