Imagine if LEGO bricks could react as you play—lighting up, making noise, or responding to movement—without a phone or tablet involved. That’s the idea behind LEGO’s new Smart Play platform, unveiled at Consumer Electronics Show (CES), the world’s most influential tech event, on Jan. 5.
Since 1932, LEGO’s been a universal shorthand for open-ended, screen-free play—plastic bricks that asked little of children more than imagination and time. As toys across the industry have grown increasingly digital, LEGO has largely held onto that identity, even as it experimented cautiously with apps, robotics, and hybrid kits.
At the heart of the Smart Play ecosystem is the Smart Brick, a standard-sized 2×4 piece packed with technology that can detect motion, orientation, and nearby components to create dynamic responses during play.
Beneath its familiar plastic exterior sits a miniature custom mixed-signal ASIC chip, which combines both digital and analogue features to seamlessly process real-world signals and produce results, light and motion sensors, an LED array, a tiny speaker, and wireless charging capability.
Instead of relying on apps or screens, Smart Bricks interact with Smart Minifigures and Smart Tags, small tiles with unique digital IDs that trigger specific lights and sounds depending on their placement or movement. The system uses LEGO’s proprietary Bluetooth-based BrickNet protocol to create a self-organizing network of bricks that requires no setup or external controllers.
Tom Donaldson, senior vice-president and head of LEGO’s Creative Play Lab, said in an interview with WIRED magazine that one of the biggest design challenges was preserving the simplicity that has defined LEGO play for decades.
“We didn’t want a power switch on the side, or even a reset button. Just doing that is an incredible challenge—to make sure that it doesn’t crash in a way that causes problems.” The goal, Donaldson said, was to make Smart Bricks “as simple to use as the OG.”
Despite LEGO positioning the Smart Brick as a screen‑free extension of its classic play system, the announcement has sparked debate among fans and play experts.
Federico Begher, senior vice-president of the LEGO Group, told IGN magazine that the Smart Brick is “a big part of the future” but stressed that it doesn’t replace the core LEGO experience, describing it as “a complementary evolution” rather than a departure from traditional brick‑based play.
Still, some child development advocates and critics worry the technology could shift play toward preset reactions and away from pure imagination. Josh Golin, executive director of Fairplay, a leading non-profit organization that aims to protect children from commercialism, told The Telegraph that Smart Bricks risk “undermining what was once great about LEGO” by narrowing the ways children engage creatively with their builds.
“The best toys are ninety per cent child, 10 per cent toy. They allow children to use their imagination to come up with stories and create their own adventures,” Golin stated in a Fairplay press statement.
LEGO’s initial Smart Play sets, launching March 1, are built around three Star Wars themes, including a 584-piece Luke’s Red Five X-Wing and a 962-piece Throne Room Duel set. In these kits, the Smart Bricks respond to produce humming engine sounds, laser blasts, ambient music, and light cues that reflect what’s happening on the play surface.
As LEGO moves deeper into the digital realm with the Smart Brick, the company is walking a fine line between innovation and tradition. Whether the Smart Brick represents the future of creative play or a controversial shift in LEGO’s identity may ultimately depend on how well the company balances technology with the hands-on, imaginative building that has long defined its brand.
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