Coldcard (MK4) vs. Bitkey

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

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

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

	Select a product	Select a product
	Coldcard (MK4) ₹18,999 Save ₹4,000 1	Bitkey ₹14,999 Save ₹2,000
Connectors	USB-C	USB-C
Wireless	NFC	NFC
Seed Phrase	BIP39	—
Release Year	2022	2024
Features	Air-gapped PSBT	—
Works With	BTCPAY Bitcoin Core BlueWallet COLDCORE Casa Electrum Sparrow Wallet Specter Desktop Wasabi Wallet	—
Compatible With	—	Android iOS
Coins	Bitcoin (BTC)	Bitcoin (BTC)
Display Type	OLED	—
Display Resolution	128 x 64	—
Battery Type	—	Lithium-ion
Battery Capacity	—	330mAh
Open Source	Yes	—
Secure Elements	ATECC608A DS28C36B	—
Size	—	56 mm x 62 mm x 13 mm
Weight	—	65g
Materials	—	Corian and stainless steel