The Vault S1 is a solid everyday choice: a monochrome screen, USB-C connectivity, and the same secure element and on-device confirmation as the rest of the line.
The Vault Mini shrinks that same model into a keychain-sized device, a good fit as a lightweight travel wallet or second device.
The Vault Pro X adds a color touchscreen and optional Bluetooth pairing, making it easier to review full transaction details on larger screens — a good fit for holders managing a wider range of assets day to day.