Coldcard (MK4) vs. Opendime (v4)

Which one is better in 2026? In-depth comparison of Coldcard (MK4) and Opendime (v4)

Coldcard (MK4) and Opendime (v4) are two popular hardware wallets with different costs, ease of use, and compatibility.

We've compared Coldcard (MK4) head-to-head with Opendime (v4) to help you decide which is best for your needs.

	Select a product	Select a product
	Coldcard (MK4) ₹16,999 Save ₹6,000 1	Opendime (v4) ₹2,999 2
Connectors	USB-C	USB-A
Wireless	NFC	—
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	—
Compatible With	—	Linux Windows macOS
Coins	Bitcoin (BTC)	Bitcoin (BTC)
Display Type	OLED	—
Display Resolution	128 x 64	—
Open Source	Yes	—
Secure Elements	ATECC608 DS28C36B	—