Lego has unveiled a first-of-its-kind smart brick and calls it the company’s biggest innovation in decades.
The new brick looks and connects like a traditional Lego piece, but advanced electronics inside allow it to sense other smart bricks and minifigures, triggering real-time sound, light, and motion effects. Lego introduced the technology this week at the 2026 Consumer Electronics Show in Las Vegas.
The smart bricks and figures run on two AAA batteries and communicate with one another through Bluetooth. Built-in accelerometers detect movement, enabling the blocks to respond with audio cues, lighting effects, tilting motions, and gesture-like reactions. Each smart minifigure responds differently to its surroundings, producing unique sounds, moods, and behaviors through the smart brick.
Lego engineers fit the electronics into traditional-sized blocks by eliminating wires and using inductive charging coils similar to those found in electric toothbrushes and smartphones. These coils also allow the bricks to detect nearby smart pieces, forming the basis of an internal positioning system. The company says the Smart Play System marks its most revolutionary development since it introduced the minifigure in 1978.
Lego will release the smart bricks in March 2026. Each brick will include a color-recognition scanner and a sound synthesizer capable of producing a wide range of audio effects. Users will recharge the bricks wirelessly with a charging pad.
Lego will launch new smart Star Wars minifigures alongside the bricks, including Darth Vader, Luke Skywalker, and Princess Leia. The company says each character has a distinct personality, with reactions that vary depending on the play environment. Some figures respond enthusiastically to certain actions, while others behave more cautiously.
Lego built its global popularity on simple plastic bricks before expanding into video games, films, and digital experiences. Despite that growth, the company says physical play remains its core focus. Industry analysts see the smart bricks as Lego’s push to bring more interactive feedback into traditional play, offering an alternative to the screens that increasingly dominate children’s time. Lego echoes that goal, saying the technology creates physical experiences that introduce new levels of interactivity, social play, and storytelling.
Chief product officer Julia Goldin said the new system opens the door to greater responsiveness, richer imaginative worlds, and new ways for children to engage with one another through hands-on play.
