Following the launch of the Trezor Safe 7 — the company’s first wireless hardware wallet featuring a transparent secure element — we spoke with Adam Budínský, Head of Hardware Product at Trezor. In this interview, he shares how user feedback shaped the product’s development, which technical challenges the team aimed to solve, and how the device reflects broader shifts in usability, transparency, and long-term crypto security.
What was the broader vision behind the creation of Trezor Safe 7 — and how does it reflect the evolution of modern self-custody?
Everything in our digital lives has become seamless and wireless — and we believe self-custody should be no exception. For too long, hardware wallets have lagged behind the level of convenience, durability, and premium design we expect from modern devices. With Trezor Safe 7, we set out to close that gap. From its aluminum unibody to encrypted Bluetooth connectivity and wireless charging, every detail was designed to make secure self-custody feel intuitive and sophisticated. But that seamless experience rests on a rock-solid foundation. We pioneered a new security model: the world’s first transparent secure element working in tandem with a trusted industry-grade chip — offering users both verifiability and resilience. That commitment to innovation is reflected across the hardware, from the safer, long-lasting LiFePO₄ battery to the fully auditable Trezor Host Protocol. This is what the new standard for hardware wallets should look and feel like — not someday, but today.
What kinds of feedback or trends among users pushed you toward creating a new generation of hardware wallet?
Trezor Safe 7 was shaped by a clear signal from our users: they wanted a hardware wallet that delivers not just security, but also modern convenience and premium quality. As our lives have become increasingly wireless and intuitive, people began to expect the same from their self-custody tools. This device brings those expectations to life — with secure Bluetooth connectivity, wireless charging, a seamless aluminum unibody, and a larger high-res display. At the same time, it introduces the world’s first transparent secure element, TROPIC01, built specifically to bring verifiability into the heart of hardware security. Each decision was guided by user feedback — and by our belief that the safest wallet should also be the easiest to use.
What kind of first impression did you want Safe 7 to leave on users the moment they unbox it?
The goal was to create a device that feels reassuring from the first moment — precise, robust, and thoughtfully engineered. Trezor Safe 7 is milled from a single block of aluminum, giving it a clean and durable form. The Gorilla Glass 3 screen adds both clarity and protection, supporting long-term daily use. It’s compact and lightweight, but built to handle the responsibility of securing your crypto. We wanted the physical design to reflect the same principles as our software: security, transparency, and simplicity.
How does Trezor Safe 7 aim to streamline the everyday experience of using crypto securely?
Everything in our daily lives is becoming seamless and wireless — and crypto shouldn’t be an exception. With Trezor Safe 7, we’ve introduced secure Bluetooth connectivity and wireless charging to remove friction from everyday use. You can sign transactions without plugging in, and keep your device charged without dealing with cables. At the same time, we’ve refined the entire user experience. A larger touchscreen with haptic feedback makes confirmations more intuitive, especially for complex operations. Onboarding, backup, and asset management have all been streamlined — even advanced features like Shamir Backup or multi-chain support are now easy to navigate. The goal is simple: make strong security feel effortless.
Which challenges or frustrations in the self-custody experience were most important for you to solve with this device?
We focused on solving two key issues: convenience and the trade-off between usability and verifiable security. Many users felt that hardware wallets lacked modern ease of use. We addressed that by introducing Bluetooth connectivity, Qi2 wireless charging, a larger color touchscreen with haptic feedback, and a durable aluminum unibody. We also designed a long-lasting LiFePO4 battery — built to endure years of use and deep discharge — so users can trust their wallet to stay ready whenever they need it. These improvements make self-custody feel intuitive, reliable, and accessible for everyday use. At the same time, we tackled long-standing concerns around secure element transparency. Trezor Safe 7 is the first wallet to pair a fully auditable secure element (TROPIC01) with an industry-trusted chip. This dual architecture offers both physical resilience and cryptographic transparency — giving users security they can verify, not just trust.”
How do you see this release shaping long-term user trust in the Trezor brand and mission?
Trezor Safe 7 reinforces what Trezor has always stood for: open-source, user-first security. But with this release, we’ve taken that commitment to a new level. By giving users a device that’s both transparent and elegant — built with verifiable components like the TROPIC01 chip and backed by years of trusted engineering — we’re showing that we listen, we evolve, and we lead. This device isn’t just an upgrade in specs; it’s a statement of our long-term promise to the community. Every design choice, from the secure Bluetooth protocol to the unibody aluminum shell, was made to deepen user confidence. We want people to feel proud to use Trezor — and to trust that we’ll always put their needs and safety first.
