Lego announced a big step forward in how kids will play with the company’s popular plastic bricks. Well, it’s actually really small. In fact, Lego’s new Smart Brick is the size of a standard 4×2 Lego brick, but it contains much of the same tech found in modern phones. And Lego is promising some cool features that will be powered by this new, tiny tech.
On January 5, during the 2026 Consumer Electronics Show, Lego unveiled Smart Play, a new smart system of Lego pieces that will work with all pre-existing Lego bricks. The main star of Smart Play is the Smart Brick, which basically acts as a tiny PC and the brains of any set using Smart Play. And this new Smart Brick is packed with tech. Lego says it includes light-sensing and sound-sensing sensors and accelerometers, as well as a “miniature speaker driven by an onboard synthesiser” and a custom-built microchip that is smaller than a standard Lego stud. The Smart Brick is charged wirelessly and can snap into any set like a regular brick.
So what can this new Smart Brick do? Well, if you include some of the other Smart Play Lego pieces, like Smart Tiles or Smart Minifigs, into a build, the Smart Brick can react to how kids play. For example, in a video posted by Lego, you can see kids attaching a propeller to a dinosaur, and when the propeller spins, the connected Smart Brick plays helicopter noises.
In the Star Wars sets launching with Smart Play in March, the Emperor minifig will play the Imperial March when you sit him on this throne. Ships can blast at each other with laser noises, and lightsabers will hum and whirl when figures holding them are moved.
Perhaps the most impressive part of all of this is that Lego has designed the system not to need a phone or computer. There is seemingly no app needed for any of these new Smart bits, which should make it very easy for a kid and their parents to set this up. In theory, you start building, and the Smart pieces interact as programmed. Sounds cool, and much better than some of Lego’s past attempts to combine tech and bricks, which often felt clunky and cumbersome as they involved phones, updates, cables, and other junk.
We won’t have to wait too long to see if Lego’s big promises are real, as Smart Play is set to launch in three different Lego Star Wars sets in March.
