Coldcard (MK4) vs. CoolWallet S

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

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

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

	Select a product	Select a product
	Coldcard (MK4) ₹18,999 Save ₹4,000 1	CoolWallet S ₹9,999 1
Connectors	USB-C	—
Wireless	NFC	Bluetooth
Seed Phrase	BIP39	BIP39
Release Year	2022	—
Features	Air-gapped PSBT	—
Works With	BTCPAY Bitcoin Core BlueWallet COLDCORE Casa Electrum Sparrow Wallet Specter Desktop Wasabi Wallet	MetaMask Rabby WalletConnect
Compatible With	—	Android iOS
Coins	Bitcoin (BTC)	Supports over 5000+ coins
Display Type	OLED	—
Display Resolution	128 x 64	—
Battery Type	—	Lithium-ion
Battery Capacity	—	15mAh
Open Source	Yes	—
Certifications	—	CC EAL5+
iOS	—	CoolBitX Crypto
Android	—	CoolBitX Crypto
Secure Elements	ATECC608A DS28C36B	—
Size	—	85.6mm x 53.98mm x 0.8mm