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The short answer: LEGO Boost is better for younger kids who love building with LEGO and want a more creative, block-based coding experience, while Makeblock mBot is better for older kids who want a more traditional robotics kit that focuses on Arduino coding and sensor-based projects. But the best choice depends on your child’s age, interests, and experience.
LEGO Boost is a robotics kit that combines classic LEGO bricks with motors, sensors, and a unique coding app. It’s designed for kids aged 7 to 12. The kit includes 847 pieces, allowing kids to build five different models: Vernie the Robot, Frankie the Cat, Guitar4000, M.T.R.4 (a rover), and AutoBuilder. Each model is interactive and can be programmed using a drag-and-drop, icon-based coding interface on a tablet or smartphone.
The coding is very visual and playful. Kids connect colorful blocks in a sequence to control the robot’s movements, sounds, and lights. There are also activities and challenges guided by the app, which keeps the learning fun. What sets LEGO Boost apart is its versatility: because it uses standard LEGO bricks, kids can modify and create their own designs, unlocking endless possibilities.
Makeblock mBot is a STEM robot kit aimed at kids aged 8 to 12, but it can be enjoyed by beginners and advanced users alike. It’s a wheeled robot that you assemble from scratch using a screwdriver. The kit includes an Arduino-based main board (mCore), ultrasonic sensor, line-following sensor, and two motors. It comes with a remote control and can be programmed using mBlock, which is a block-based coding software similar to Scratch, but it also supports Arduino C++ for more advanced users.
The mBot is more of a classic robotics kit. The assembly requires following manual instructions, which is a great lesson in engineering and following directions. Once built, kids can control it via remote or program it to follow lines, avoid obstacles, and perform other tasks. The mBlock software is powerful, allowing for both simple drag-and-drop coding and text-based code for those who want to dive deeper.
The build experience is a key difference. LEGO Boost is all about creative construction. Since it uses LEGO bricks, kids can easily rebuild, modify, and expand their creations. The initial model build might take around an hour, but the possibilities are endless. This is perfect for kids who love to tinker and design their own robots.
Makeblock mBot provides a more structured assembly process. You follow step-by-step instructions to assemble the robot, which typically takes about 15 to 30 minutes. It’s less about design and more about understanding how a robot is put together. The mBot also offers expansion packs, such as a robotic arm or a six-legged walking robot, but these are separate purchases.
LEGO Boost uses a very intuitive, icon-based coding system. It’s perfect for younger children who are just starting to learn programming logic. The app provides plenty of guided activities, making it easy to learn. However, the coding is limited to the LEGO Boost environment, and it doesn’t transition to text-based coding directly.
Makeblock mBot uses mBlock, which is based on Scratch 3.0. It’s also block-based, but it has a more traditional programming feel. Kids can switch to Arduino C++ when they’re ready, which makes mBot a better long-term investment for those who want to pursue robotics seriously. The mBot also teaches kids about sensors and electronics in a more direct way, as the components are exposed and connected to a visible circuit board.
For kids aged 7 to 9, LEGO Boost is usually the better choice. Its building is more forgiving, and the coding is more playful. The LEGO brand is also a big draw for many kids. It allows for free play and creativity beyond the instructions.
For kids aged 10 and up, especially those who show an interest in engineering or coding, Makeblock mBot shines. It offers a more challenging and realistic robotics experience. The Arduino compatibility is a huge plus for school projects or future learning. If your child is already comfortable with LEGO and wants to try something different, mBot is a great next step.
When choosing, consider your child’s temperament. If they get frustrated easily, LEGO Boost’s creative freedom may be more enjoyable. If they like following instructions and seeing a working machine, mBot will be satisfying.
Both kits need a dedicated workspace, but their footprints differ. LEGO Boost models, once built, can be large and fragile. Vernie the Robot, for example, stands several inches tall and has moving parts that can be knocked over. You’ll need a shelf or bin where the model can stay assembled between play sessions. Because the kit contains 847 pieces, storing it disassembled requires a sizable container with compartments to keep everything sorted. Many families use the original box or a tackle box for this purpose.
Makeblock mBot is more compact. The assembled robot is roughly the size of a small remote-controlled car, so it takes up less shelf space. However, its components, screws, and cables are small and easy to lose. A small parts organizer is essential. The mBot also has exposed wires and circuit boards, so it should be stored away from dust and moisture. Unlike LEGO Boost, you can leave mBot assembled and ready to run without worrying about pieces falling off during handling.
LEGO Boost is built from standard LEGO bricks, which are known for their durability. The motors and sensors are robust, but the models themselves can break apart if dropped. Regular use may cause pieces to loosen, especially at joints. Cleaning is straightforward: a soft brush or a slightly damp cloth can remove dust from bricks. Avoid getting the electronic components wet. The LEGO Boost app receives occasional updates, so you’ll need a compatible device with a current operating system.
Makeblock mBot requires more hands-on maintenance. The wheels and tracks can pick up hair and dust, which affects traction. The ultrasonic sensor and line-following sensor need to be kept clean for accurate readings. The battery pack, which uses AA batteries, should be removed if the robot won’t be used for a while to prevent leakage. The screws can loosen over time, so periodic tightening is wise. The mBlock software is updated regularly, and older versions may not work with newer operating systems, so check compatibility before buying.
One frequent mistake is buying either kit for a child below the recommended age. LEGO Boost is labeled for ages 7 to 12, but younger kids may need help with the app and building. mBot is for ages 8 and up, and the small screws and exposed electronics pose a choking hazard for children under three. Always supervise younger builders.
Another mistake is assuming the robot will work right out of the box. Both require setup: LEGO Boost needs a tablet or smartphone with the app installed, and mBot needs a computer or tablet with mBlock, plus batteries. Check that you have the required devices and a stable internet connection for downloading software. Some parents also forget that mBot’s remote control mode works without programming, which can be a good way to start before diving into code.
A third common error is not planning for expansion. LEGO Boost’s creative potential is huge, but it doesn’t teach text-based coding. If your child wants to learn Python or C++, you’ll eventually need a different platform. mBot offers a path to Arduino C++, but its expansion packs cost extra. Decide upfront whether you want a self-contained creative toy or a stepping stone to more advanced robotics.
If neither LEGO Boost nor mBot fits your needs, several other STEM robots are worth a look. For a screen-free coding experience, the Learning Resources Botley 2.0 is a good option for ages 5 and up. It uses a remote programmer and doesn’t require a tablet. For older kids interested in drones, the Ryze Tello offers programmable flight and a gentle introduction to aerial robotics. If you want a buildable robot that teaches electronics without coding, the Elenco Snap Circuits kits are excellent. And for a more advanced, open-source platform, the Arduino Uno starter kit provides a deeper dive into electronics and programming, though it lacks the polished app experience of LEGO Boost or mBot.
When not to buy: If your child is not interested in building or coding, either kit may sit unused. These are educational tools, not toys for passive play. Also, if you have a tight budget, consider starting with a simpler, less expensive coding toy before investing in a full robotics kit. Finally, if your child is already proficient in Python or C++, they may find both kits too basic and should look at more advanced platforms like Raspberry Pi or VEX Robotics.
Absolutely. Both LEGO Boost and Makeblock mBot are great for adult beginners. LEGO Boost is relaxing and creative, while mBot offers a deeper dive into Arduino programming. They are both excellent entry points for learning robotics.
Yes. LEGO Boost requires a tablet or smartphone with the LEGO Boost app (compatible with iOS and Android). Makeblock mBot requires a computer or tablet with the mBlock software, or you can use the remote control mode without any programming.
Both have strong educational value, but they teach different skills. LEGO Boost emphasizes creativity, design, and basic coding logic. Makeblock mBot emphasizes engineering, electronics, and more versatile coding options. For a robust STEM education, many parents eventually get both, but if you must choose one, consider your child’s interests. If they love building, start with LEGO Boost; if they love robots and sensors, start with mBot.
For more options and a detailed comparison of top STEM toys, check out our STEM toys buying guide to find the perfect fit for your young innovator.
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