Coinkite launched the Coldcard MK5, its first hardware upgrade to the flagship Bitcoin wallet since 2022. Summary The Coldcard MK5 features a 1.54-inch Gorilla Glass display, redesigned tactile buttons, and improved NFC for smoother Bitcoin transactions. The wallet retains the MK4’s dual secure element architecture from two different chip vendors, keeping private keys fully air-gapped. Coinkite’s NVK said the MK5 is a reimagining of the user experience while preserving the security standards the community has relied on for years. Coinkite launched the Coldcard MK5 on March 10, 2026, marking the company’s first hardware revision to the MK line since the MK4 arrived in 2022 and introducing five significant user experience improvements to its Bitcoin-only signing device. “The MK5 isn’t just an update; it’s a reimagining of the user experience,” said NVK, co-founder of Coinkite. “More durable, visible, and intuitive, all while preserving the rock-solid security our users depend on to protect their Bitcoin.” What changed from MK4 The headline hardware change is a 1.54-inch display protected by Gorilla Glass, replacing the previous screen with one that is visibly sturdier and more legible. The MK4 used recessed buttons that required fingertips to press into a socket to register a click. The MK5 redesign brings buttons nearly flush with the chassis, giving clear tactile feedback without the awkward finger positioning of the previous model. NFC capability has also been upgraded, improving the reliability of wireless signing workflows introduced in the Coldcard Q. The device retains the dual secure element design, pairing chips from two different manufacturers alongside a microcontroller, the same security architecture that set the MK4 apart when it launched. The MK5’s transparent case allows users to visually inspect the device’s internals for hardware implants, a feature Coinkite has emphasised as a physical security advantage over opaque designs. All five upgrades are focused on usability rather than the security core. The MK5 continues to run the same open-source firmware that has been audited by the Bitcoin community for years and remains designed exclusively for Bitcoin, in line with Coinkite’s Bitcoin-only product philosophy. The hardware wallet market has grown more competitive in 2026, with Trezor releasing the Safe 7 in late 2025 and several manufacturers adding touchscreens and wireless features. Coinkite’s deliberate choice to avoid touchscreens and prioritise physical button feedback signals a specific design philosophy: tactile clarity over interface modernity. The Coldcard MK5 is available through Coinkite’s official store in multiple colours, including orange and a glow-in-the-dark variant. Pricing was not disclosed in the announcement but the device is positioned as a premium option for self-custody Bitcoin holders who prioritise air-gapped security.
