LEGO SMART Play puts sensors and a miniature speaker inside a brick, adding sound and responses to models moved by hand.
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Lift a LEGO airplane and fly it through the air. You can make the engine noise yourself or leave it to the imagination. LEGO SMART Play adds another response to that familiar game: a brick detects movement and produces sound.
LEGO unveiled the platform in January 2026 and released its first sets in selected markets in March. At its center is the SMART Brick, which contains sensors, an accelerometer, light and sound sensing, and a miniature speaker. It is designed to work with the existing LEGO building system.
Responding to what you are playing with
This goes beyond putting a speaker inside a brick. SMART Tags and SMART Minifigures work with the SMART Brick to trigger responses suited to nearby objects and actions. Instead of a button repeating the same sound, the system responds to the scene being played out.
The first announced Star Wars sets demonstrated engine sounds, lightsaber noises, and music triggered when a particular character sits on a throne. Sounds follow the positions and scenes created by hand.
Technology without a screen
Adding technology need not mean keeping an eye on an app. LEGO describes SMART Play as screen-free physical play. The objects in the player's hands are still bricks and models.
That does not make every existing brick produce sound or give every figure the same functions. The responses require the dedicated bricks, tags, and figures. Compatibility with the building system is different from access to its electronic features.
How much the effects add to play, and how much room they leave for imagination, will depend on the setup and its use. A product announcement cannot establish how children will respond.
What changes is that movement now receives an audible response. Moving the airplane in your hand can start the sound, without pressing an on-screen button.
Official introduction video
LEGO's official SMART Play introduction video introduces how the brick system that responds to movement works.
https://www.youtube.com/watch?v=eOJx8nGi7IE
Official channel
https://www.youtube.com/@LEGO
Sources and editorial notes
LEGO · SMART Play official announcement
Editorial note: Facts were checked against the sources above; interpretations reflect MUADAILY’s editorial perspective. Image: LEGO · Preview of the official video introduced in the text.
Machine-translated from Korean. Read the original.
