The Smart Brick is the same size as a regular 4x2 Lego piece and is universal, meaning you could put the same brick in any number of Lego sets and have a different result. Inside it is a speaker, accelerometers, light and sound sensors, an onboard synthesiser and a custom mixed-signal ASIC chip to run it all.

Lego bricks come in a ridiculously vast array of sizes and shapes, but the company is unveiling an entirely new take on its classic shape at CES 2026.