Foundation Passport review

Foundation Passport is a bitcoin-only hardware wallet from Foundation Devices, and the model you can buy today is the Passport Prime at $349. Foundation has widened what the device is for: it sells Prime as one piece of hardware doing four jobs, holding your bitcoin keys, your two factor codes, a hardware security key for logins over NFC or USB, and 50GB of encrypted storage.

The architecture is the interesting part. Prime runs KeyOS, a microkernel operating system written in Rust, where apps run sandboxed and isolated from each other and from the master keys, and those apps are open source. Bluetooth, which plenty of bitcoiners refuse on principle, runs through a dedicated chip Foundation calls QuantumLink rather than through the processor holding your secrets. Foundation publishes an audit quote from Dmitry Nedospasov, founder of the hardware security firm Keylabs, calling it a hardware architecture that exceeds industry standards for protecting users' digital assets. Foundation engaged that auditor, so weigh it accordingly, but a named auditor with a public quote is more than most vendors offer. Setup and firmware updates run through Envoy, Foundation's companion app, which is published on the App Store, Google Play and F-Droid.

If you are shopping second hand or reading older reviews, be clear about one thing: Passport Core, the earlier and cheaper bitcoin-only device, has been discontinued. Foundation's terms of service, effective May 21, 2026, say so directly, and add that existing Core devices keep their product-specific terms and warranty rights.

Foundation publishes no list of countries it ships to. Its terms do reserve the right to reject or cancel an order over export restrictions or sanctions concerns, which is a clause almost every hardware vendor carries, so the checkout is the only reliable test.