There's one phone people still joke is indestructible: the Nokia 3310. That's exactly the philosophy we want for PHYLAX — no frills, one job, and it just keeps working, year after year.
Restraint is a security property in a hardware wallet, not just an aesthetic one. Every feature is code, every line of code is something that can be wrong, and firmware nobody can finish reading is firmware nobody has really audited.
Why the 3310
The 3310 wasn't loved because it did the most. It did a few things — call, text, Snake — and did them so reliably it became a meme for toughness. That's the opposite of the modern gadget that feels obsolete in three years. A device guarding your Bitcoin should be the tough, boring one you can still trust a decade from now.
Core function only
PHYLAX does one job — protect your Bitcoin keys and sign transactions. Two buttons, Cancel and Confirm, a screen, and a USB-C port. No apps, no NFC party tricks, no notifications. Every feature we don't add is one less thing to break, leak, or attack.
Bitcoin only, and backward compatible
No shitcoins — not now, not later. And PHYLAX follows the open Bitcoin standards, so it stays backward compatible: your 24-word seed works on any compatible wallet, and the device keeps working with the ecosystem as it grows. Standards outlive products — that's how a wallet you buy today still makes sense in ten years.
Built to last a decade
Everything in this journal points at one goal — no battery, an industrial-grade chip, gold contacts, million-cycle buttons, a case you'd trust to drop. Add it up and you get a wallet you can still rely on ten years from now. Bitcoin is a long game; the thing that guards it should be too.
Fewer features, less to audit
Supporting a hundred chains means a hundred signing schemes, a hundred address formats and a hundred opportunities for a subtle bug to reach your keys. Bitcoin-only keeps the PHYLAX firmware small enough that a competent reader can get through all of it in an afternoon — which is the only condition under which "open source" means anything in practice. Publishing a million lines nobody reads is transparency in name only. The Nokia comparison is not nostalgia: it is a description of a device that does one job, does it for a decade, and has nothing on board whose purpose you would have to take on faith.
That's the whole idea in one photo: a Nokia 3310 next to PHYLAX PCB v3.0. Want to hold the indestructible one? We'll have the prototype at Bitcoin Thailand Conference 2026.