Trezor Safe 3

Overview

The Trezor Safe 3 is the best-value entry in Trezor's lineup and a landmark for the brand: it's the first affordable Trezor to pair the company's long-audited open-source approach with a dedicated secure element chip. Historically Trezor devices avoided secure elements (using a general microcontroller for full transparency), but that made them theoretically vulnerable to physical extraction attacks. The Safe 3 adds an EAL6+ secure element to guard the PIN and seed, while keeping the firmware open and verifiable.

It's a wired USB-C device with a small screen and two buttons. Keys are stored on the device, transactions are signed on-device, and you confirm on the screen — the standard model, executed by one of the oldest and most trusted names in the space. It supports Bitcoin plus a wide range of other coins through Trezor Suite.

The honest trade-offs: the screen and buttons are basic compared with touchscreen flagships, and it's wired-only with no camera or air-gap. For pure air-gapped signing you'd want a Coldcard, Keystone, or Foundation Passport. But if your priority is audited open-source firmware plus modern physical-attack resistance at a low price, the Safe 3 is arguably the best bang-for-buck Bitcoin hardware wallet available.