Lego Robot Inventor - 51515

Updated: Mar 22

The Basics

  1. The Robot Inventor has 949 pieces

  2. 5 unique designs to build

  3. Robot Inventor App

  4. STEM Educational skills for kids

  5. Blast (pictured) is 14" tall

Check it out here at Amazon

Lego Mania Fan Review

This is a really creative product. Lego meets technology and design or as Lego states 'physical-meets-digital'. The wealth of variety this product has is limitless with over 5 differing designs and 50+ activities to bring these models to life. This is an essential must have for any child demonstrating an interest in technology and coding. As a relatively technologically savvy individual this product took a bit of learning to get a rhythm but once you're used to the interface and mastering the software it is a great and exciting way to appreciate the communication between the coding and your build - whatever that build may be. Lego has progressed tremendously with their innovation and this is a futuristic feel for where this level of technology can go. A must try for anyone interested in any form of gadgets.

Build, code and play with Robot Inventor!

EInspired minds with a physical-meets-digital world filled with interactive, remote-control robotos and intelligent vehicles. Complete with 5 unique designed to build, plus fun coding and challenging activities to complete with the Robot Inventor App.

Check out this awesome video with the creators.

From the Manufacturers

Enter the amazing physical and digital world of programmable, remote-control robots and intelligent creations. With LEGO® MINDSTORMS® Robot Inventor (51515), young robot fans build 5 unique, motorized robots and vehicles using the free LEGO MINDSTORMS Robot Inventor App. Then they bring them to life, one at a time, using the drag-and-drop coding environment based on Scratch and complete fun activities and challenging missions (visit for a list of compatible devices). And with almost 1,000 pieces, kids will love to come up with their own tech toy creations and share them with other robot fans on LEGO Life.

Level up the play experience From the intelligent Hub with its 5x5 LED screen, 6-axis gyro and speaker, to powerful motors and accurate sensors, the latest evolution of LEGO MINDSTORMS coding robots for kids is the perfect way to help youngsters express and develop their creativity, while gaining essential 21st century STEM skills.

A Robot for any task

With LEGO® MINDSTORMS® Robot Inventor (51515), kids gain essential STEM skills as they build, code and play with remote-control robots and intelligent creations that shoot missiles, play ball, drive around and more!

Kids build Charlie, Tricky, Blast, M.V.P. and Gelo, and take on activities and missions using the Scratch-based LEGO® MINDSTORMS® Robot Inventor App (visit for a list of compatible devices).

A world of unlimited play possibility

With almost 1,000 pieces, including an intelligent Hub, 4 Medium Motors, Color Sensor and Distance Sensor with break-out interface, youngsters can also build their own fun robotic toys and share them online on LEGO® Life.

For fans of LEGO® BOOST and kids who love LEGO building and playing with robots, Robot Inventor is a great next step. It's also a cool gift for 10-year-olds and up, be it a birthday, Christmas or any other occasion.

Robot Inventor App

The free LEGO® MINDSTORMS® Robot Inventor coding app for kids includes an interface based on Scratch, digital building instructions, 50+ activities, plus Python support for more advanced coders.

LEGO® MINDSTORMS® inspires LEGO inventors of all ages to build, code and control interactive robot toys and other creations with bricks, motors, sensors and intelligent Hubs, and share them with the MINDSTORMS community.


Blast stands at over 14” (36cm) tall, while Gelo measures over 9” (24cm) long. The Powered Up components in this set are also compatible with the LEGO® BOOST Creative Toolbox (17101), Droid Commander (75253) and others.

An easy-to-install rechargeable battery is included with this cool toy, so no need to go hunting for spare batteries when the fun’s about to start.

Since 1958, LEGO® building bricks have met the highest industry standards, which ensures they are consistent, compatible and connect and pull apart easily every time.

LEGO® bricks and pieces are rigorously tested to meet exacting safety and quality standards, so you can be sure these electronic toys won't fall apart during a mission.

This set features Digital Building Instructions. Now it’s easy to follow the steps on your mobile device or download a PDF of the printed building guide. Click the Building Instructions button at the bottom of this page to find and download the instructions.

Customer Reviews of This Build

This model is coming in hot at a rating of 4.7 out of 5 in Amazon and 3.5 out of 5 on Lego. I was surprised at the relatively average rating from Lego customers. This is reviewed as being a great addition to the Mindstorms series and has been used as a learning aid for schools which sounds absolutely awesome. Rechargeable battery system can be a bit frustrating as you have to have specific batteries and can be a hassle to replace. Overall, the coding system and apps are easy but informative and an excellent package to develop skillsets in coding and building.

In Summary

I This product speaks for itself in many respects. It is intelligently designed to challenge Lego builders while displaying the many benefits that Lego is renowned for; educational, informative, developmental and holds a wide range of problem solving requirements. In comparison to what was available when I was a kid, these products are going to create masters of crafts before they even reach universities. Coding integrated into Lego, it just seems impossible, yet it is so incredibly well designed that it seems so natural to the product. I love it in every way and like a broken record for most of these types of products, it is just limitless to its potential!

Keep on Building and coding

Much Love

Lego Mania x

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