At first glance, LEGO’s Smart Brick looks like any standard LEGO brick — but inside is a tiny custom ASIC chip smaller than a single LEGO stud along with sensors, LED lights, a miniature speaker, and motion detection hardware. This compact system lets a Smart Brick:

The new sensor-packed Smart Play Brick will land this spring as part of a special Star Wars collection. The update adds interactive lights and sound to the Lego experience—including the minifigs.

LEGO introduces revolutionary screen-free SMART Play technology at CES 2026, bringing interactive sounds and lights to physical builds.

LAS VEGAS, NEVADA – JANUARY 05: Julia Goldin, Chief Product & Marketing Officer, the LEGO Group on stage during the LEGO SMART Play launch event at Mandalay Bay Convention Center on January 05, 2026 in Las Vegas, Nevada. (Photo by David Becker/Getty Images for The LEGO Group)

The humble Lego brick is having a dramatic technological makeover that could transform how kids – and a fair few adults – play with the iconic toy.