Walnut

The phone that helps you fight brain rot. 5-day battery, minimal SoC, AI-native OS with no app store and six built-in apps.

Client problem

Over 20 years, the smartphone made us the most connected and the most distracted we've ever been. Today's phones are weaponised for attention extraction, serving AI-generated slop optimised for engagement. The device meant to be a tool became a competitor for the user's focus.

Our solution & architecture

A phone with only 6 apps (Phone, Messages, Camera, Maps, Notes, Calculator), no app store, 5-day battery, and AI-native by default. Walnut dispatches tasks to the user's other computers (home, cloud, desktop) rather than doing everything on-device, keeping what a phone existed for and removing the surrounding economy of distraction.

Why it matters

A clean client, not every machine: Offloads to the user's own computers
No attention economy: No app store, no engagement slop
Simpler is more advanced: AI-native gateway, not a do-everything brick

Benefits realised

6: Built-in apps, nothing else
5-day: Battery life
On-device: AI-native OS by default