LEGO has long been synonymous with creativity and imagination, and with the launch of Smart Bricks, the Danish toy giant is redefining what it means to build. Unveiled at CES 2026, the Smart Brick integrates motion sensors, LEDs, speakers, and Smart Tags into the familiar 2×4 brick format, allowing sets to react to movement and context. This innovation is at the heart of LEGO’s Smart Play™ ecosystem, which aims to merge traditional tactile building with interactive, sensory-driven experiences, all without the need for screens or apps.
The technology inside a Smart Brick is deceptively small. Each brick contains a motion sensor, light sensors, a miniature speaker, and a custom chip capable of processing input from Smart Tags and Smart Minifigures. The result is a brick that can detect its orientation, nearby tagged elements, and motion, then produce corresponding sounds, lights, or other effects, effectively bringing static builds to life.
Smart Play extends beyond the Smart Brick itself. Smart Tags are tiny tiles with unique identifiers, and Smart Minifigures include embedded IDs. When combined, these elements allow the bricks to “understand” their surroundings. For example, a spacecraft can emit engine noises as it tilts, or a lightsaber can hum and flash when lifted or swung. This interactive approach transforms traditional building into a more immersive storytelling experience.
LEGO emphasizes that Smart Play does not replace the classic building experience. Instead, it enhances it, keeping the focus on physical construction while adding layers of engagement. Builders can integrate Smart Bricks into older sets or create entirely new interactive models, extending the appeal of the LEGO system for both kids and adult fans.
The first wave of Smart Play sets, launching March 1, 2026, focuses on the Star Wars™ universe. LEGO has released three flagship “All‑In‑One” sets that include Smart Bricks and multiple Smart Tags, as well as a series of Smart Play‑compatible companion sets that interact with Smart Bricks from the flagship sets.
The flagship sets are as follows:
- 75421 – Darth Vader’s TIE Fighter ($69.99): 473 pieces, includes one Smart Brick, one Smart Minifigure (Darth Vader), and one Smart Tag. The set features motion-activated engine sounds, lights, laser effects, and interactive refueling and repair audio.
- 75423 – Luke’s Red Five X‑Wing ($89.99): 584 pieces, one Smart Brick, two Smart Minifigures (Luke Skywalker and Princess Leia), and five Smart Tags. Players can activate engine roars, laser blasts, and accessory interactions for a cinematic dogfight experience.
- 75427 – Throne Room Duel & A‑Wing ($159.99): 962 pieces, two Smart Bricks, three Smart Minifigures (Luke, Darth Vader, Emperor Palpatine), and five Smart Tags. Features lightsaber duels with audio and lights, A‑Wing flight effects, turret fire, and music cues including “The Imperial March.”
In addition to these, LEGO is offering Smart Play‑compatible sets that do not include Smart Bricks but contain Smart Tags and Smart Minifigures to interact with the flagship bricks. These include:
- Millennium Falcon (~$99.99, 885 pieces)
- Mos Eisley Cantina (~$79.99, 666 pieces)
- Luke’s Landspeeder (~$39.99, 215 pieces)
- Yoda’s Hut & Jedi Training (~$69.99, 440 pieces)
- AT‑ST Attack on Endor (~$49.99, 347 pieces)
Below is a detailed Smart Play Set Comparison Chart:
| Set Name | Set Number | Price (USD) | Pieces | Includes Smart Brick? | Smart Minifigures | Smart Tags | Interactive Highlights |
|---|---|---|---|---|---|---|---|
| Darth Vader’s TIE Fighter | 75421 | $69.99 | 473 | ✔️ | 1 (Darth Vader) | 1 | Motion-activated engine sounds, lights, laser effects, refueling/repair audio |
| Luke’s Red Five X‑Wing | 75423 | $89.99 | 584 | ✔️ | 2 (Luke Skywalker, Princess Leia) | 5 | Engine roars, laser blasts, refueling and repair audio triggered by tags |
| Throne Room Duel & A‑Wing | 75427 | $159.99 | 962 | ✔️ (×2) | 3 (Luke, Darth Vader, Emperor Palpatine) | 5 | Lightsaber duels with sound, “The Imperial March,” A‑Wing motion effects, turret fire |
| Millennium Falcon (Compatible) | 75426 | $99.99 | 885 | ❌ | 4 (Han, Chewbacca, Luke, C‑3PO) | 4 | Engine sound tags, hyperspace tag, lightsaber training and ambient effects |
| Mos Eisley Cantina (Compatible) | 75425 | $79.99 | 666 | ❌ | 2 (Greedo, Obi-Wan) | 3 | Ambient Cantina sounds, creature noises, drink-mixer effects |
| Luke’s Landspeeder (Compatible) | 75420 | $39.99 | 215 | ❌ | 0–2 non-Smart | 1 | Vehicle sound tags when used with a Smart Brick |
| Yoda’s Hut & Jedi Training (Compatible) | 75422 | $69.99 | 440 | ❌ | 2 (Yoda, Dagobah Luke) | 1 | Training sound tags, lever activated effects |
| AT‑ST Attack on Endor (Compatible) | 75424 | $49.99 | 347 | ❌ | 1 (Scout Trooper) | 1 | Scout unit tag and motion response when paired with Smart Brick |
The Smart Play ecosystem is designed to scale. Players can start with one flagship set and gradually expand their interactive universe by adding compatible sets. While early reactions note that the per-piece cost of these technology-enhanced sets is higher than traditional LEGO kits, the trade-off is an enriched, immersive building experience.
Critics have highlighted the need for Smart Bricks in flagship sets, which may make it more expensive to fully experience Smart Play across multiple sets. Yet, the interactivity, creative possibilities, and ability to combine physical building with motion-activated sound and light create an entirely new way to play.
LEGO’s Smart Bricks mark a bold evolution for the company, merging its tactile, imaginative legacy with technology in a meaningful, hands-on way. For collectors, Star Wars fans, and builders of all ages, the launch of Smart Play sets represents not just new products, but a glimpse into the future of interactive LEGO play.

