Lego unveiled its most ambitious product in nearly 50 years at CES 2026. It's called the Smart Brick — a 2x4 Lego brick with an entire computer inside. The brick contains light and sound capabilities, motion sensors, a microphone, and Bluetooth mesh networking that lets multiple bricks communicate with each other.

Lego has unveiled Smart Bricks - tech-filled versions of its small building blocks - which it says will bring sets to life with sound, light and reaction to movement.

The small plastic bricks will be packed sensors, speakers, lights and an accelerometer to measure how it's being played with.