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51515 LEGO Mindstorms Robot Inventor thumbnail image

51515 LEGO Mindstorms Robot Inventor
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51515 LEGO Mindstorms Robot Inventor
  • Robot Inventor thumbnail
  • Robot Inventor thumbnail
  • Robot Inventor thumbnail
  • Robot Inventor thumbnail
  • Robot Inventor thumbnail
  • Robot Inventor thumbnail

LEGO 51515 Robot Inventor is a Mindstorms set valued at $814 for new and sealed sets, up 126% from an original retail price of $359.99. The set retired in June 2023 with annual appreciation averaging 17.57% since. Used copies are valued between $376 and $462 depending on condition. Secondary market prices for new and sealed sets typically fall between $696 and $864.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Robot Inventor since June 2023. Very high accuracy
LEGO 51515 Robot Inventor is a Mindstorms set released in 2020, containing 949 pieces. The kit centers on an intelligent Hub with a 5x5 LED screen, 6-axis gyro, and speaker, and includes four motors, a distance (ultrasonic) sensor, and a color (light) sensor. Using the free companion app with a Scratch-based coding environment, builders can program and control models. The set provides instructions for five motorized robots and vehicles with modular components for further customization.

A new and sealed Robot Inventor is currently valued at around $814, with annual growth of about 11.8% that is expected to level off to around 9.0% in the coming year, making it a solid investment. The average used price is $385 for those in good overall condition. Based on current trends, this set could be valued near $854 within the next year. New and sealed listings currently range from $671 to $827. The set was available for 32 months, from October 2020 to June 2023.
All regions

For Sale (New/Sealed)

 (CA) 51515 Mindstorms Robot Inventor Building Toys $633.98
-22.1%
(US) Mindstorms Robot Inventor 51515 NEW Factory Sealed Retired STEM Set
BrickEconomy Choice
$649.99
-20.2%
(US) BrickLink store MIchigan Brickland $650.00
-20.2%
(NL) BrickLink store SpecialBricks $671.99
-17.4%
(CA) SEALED Lego 51515 Mindstorms Robot Inventor Set . New in Box $704.42
-13.5%
(CA) Sealed LEGO 51515 Mindstorms Robot Inventor $704.42
-13.5%
(US) MINDSTORMS: Robot Inventor (51515) $750.00
-7.9%
(US) MINDSTORMS: Robot Inventor (51515) $750.00
-7.9%
(CA) BrickLink store VAN-Bricks $776.81
-4.6%
(NO) In very good condition, some shelf wear. Ask for pictures if condition is important. $789.09
-3.1%
(KR) 51515 Mindstorms Robot Inventor 949pcs SEALED Not Opened $799.99
-1.7%
(JP) 51515 MINDSTORMS Robot Inventor Robotics Kit New Sealed $808.98
-0.6%
(KR) SEALED LEGO 51515 Mindstorms Robot Inventor Building Set 949 Pieces Not Opened $810.04
-0.5%
(KR) 51515 Mindstorms Robot Inventor 949pcs Factory-Sealed $815.99
+0.2%
Show 6 more listings

Sales Distribution (Last 90 Days)

This chart shows the distribution of sales for the past three months of new/sealed 51515 Robot Inventor.

Sale Trends

This chart shows the sales trends (number sold) of new/sealed 51515 Robot Inventor.

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Sets in Mindstorms

9719 Robotics Invention System

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Year 1998
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9719 LEGO Mindstorms Robotics Invention System
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9747 Robotics Invention System

Theme / Subtheme Mindstorms / 1
Year 1999
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9747 LEGO Mindstorms Robotics Invention System
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Growth  +2.6%

3804 Robotics Invention System V2.0

Theme / Subtheme Mindstorms / 2
Year 2001
Pieces 717
Availability Retired
3804 LEGO Mindstorms Robotics Invention System V2.0
Retail $199.99
Value $245.63
Growth  +22.8%
Annual growth 2.3%

9748 Droid Developer Kit

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Pieces 657
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9748 LEGO Mindstorms Star Wars Droid Developer Kit
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Growth  +51.4%
Annual growth 2.3%

8547 Mindstorms NXT 2.0

Theme / Subtheme Mindstorms / NXT 2
Year 2009
Pieces 619
Availability Retired
8547 LEGO Mindstorms NXT 2.0
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Growth  +61.3%
Annual growth 2.5%

31313 Mindstorms EV3

Theme / Subtheme Mindstorms / EV3
Year 2013
Pieces 601
Availability Retired
31313 LEGO Mindstorms EV3
Retail $349.99
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Growth  +50.8%
Annual growth 5.8%

9754 Dark Side Developer Kit

Theme / Subtheme Mindstorms / Star Wars
Year 2000
Pieces 578
Availability Retired
9754 LEGO Mindstorms Star Wars Dark Side Developer Kit
Retail $99.99
Value $199.70
Growth  +99.7%
Annual growth 2.2%

8527 Mindstorms NXT

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 577
Availability Retired
8527 LEGO Mindstorms NXT
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Growth  +54.3%
Annual growth 2.3%

9735 Robotics Discovery Set

Theme / Subtheme Mindstorms / 1
Year 1999
Pieces 390
Availability Retired
9735 LEGO Mindstorms Robotics Discovery Set
Retail $149.99
Value $172.00
Growth  +14.7%
Annual growth 2.0%

3800 Ultimate Builders Set

Theme / Subtheme Mindstorms / 1
Year 2001
Pieces 321
Availability Retired
3800 LEGO Mindstorms Ultimate Builders Set
Retail $59.99
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Growth  +160.8%
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9736 Exploration Mars

Theme / Subtheme Mindstorms / 1
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Pieces 155
Availability Retired
9736 LEGO Mindstorms Exploration Mars
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Annual growth 8.0%

9732 Extreme Creatures

Theme / Subtheme Mindstorms / 1
Year 1998
Pieces 148
Availability Retired
9732 LEGO Mindstorms Extreme Creatures
Retail $49.99
Value $61.87
Growth  +23.8%

9731 Vision Command

Theme / Subtheme Mindstorms / 1
Year 2000
Pieces 138
Availability Retired
9731 LEGO Mindstorms Vision Command
Retail $99.99
Value $108.41
Growth  +8.4%

9730 Robo Sports

Theme / Subtheme Mindstorms / 1
Year 1998
Pieces 91
Availability Retired
9730 LEGO Mindstorms Robo Sports
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Growth  +0.0%

3803 Robotics Invention System Upgrade Kit

Theme / Subtheme Mindstorms / 1
Year 1999
Pieces 70
Availability Retired
3803 LEGO Mindstorms Robotics Invention System Upgrade Kit
Retail $24.99
Value $43.17
Growth  +72.7%
Annual growth 2.0%

3801 Ultimate Accessory Set

Theme / Subtheme Mindstorms / 1
Year 2000
Pieces 45
Availability Retired
3801 LEGO Mindstorms Ultimate Accessory Set
Retail $49.99
Value $66.73
Growth  +33.5%
Annual growth 6.4%

Keyfob Transponder

Theme / Subtheme Mindstorms / NXT
Year 2008
Pieces 10
Availability Retired
LEGO Mindstorms NXT Keyfob Transponder
Retail $29.99

8529 Connector Cables for Mindstorms NXT

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 7
Availability Retired
8529 LEGO Connector Cables for Mindstorms NXT
Retail $9.99
Value $19.98
Growth  +100.0%
Annual growth 3.7%

8528 Converter Cables for Mindstorms NXT

Theme / Subtheme Mindstorms / NXT
Year 2006
Pieces 3
Availability Retired
8528 LEGO Converter Cables for Mindstorms NXT
Retail $9.99
Value $36.36
Growth  +264.0%
Annual growth 9.6%

9911 Touch Sensor and Leads

Theme / Subtheme Mindstorms / 1
Year 2004
Pieces 3
Availability Retired
9911 LEGO Mindstorms Touch Sensor and Leads
Retail $11.99
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Growth  +66.7%
Annual growth 2.6%

RF ID Sensor

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Year 2008
Pieces 3
Availability Retired
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Retail $29.99
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9713 Infrared Transmission Tower

Theme / Subtheme Mindstorms / 1
Year 1998
Pieces 2
Availability Retired
9713 LEGO Mindstorms Infrared Transmission Tower
Retail $24.99
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9757 Touch Sensor

Theme / Subtheme Mindstorms / 1
Year 1999
Pieces 2
Availability Retired
9757 LEGO Mindstorms Touch Sensor
Retail $10.99
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Growth  +38.9%
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10285 Compass Sensor

Theme / Subtheme Mindstorms / NXT
Year 2011
Pieces 1
Availability Retired
10285 LEGO Mindstorms NXT Compass Sensor
Retail $54.99
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Growth  +19.7%
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10286 Color Sensor

Theme / Subtheme Mindstorms / NXT
Year 2011
Pieces 1
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10286 LEGO Mindstorms NXT Color Sensor
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My Collection

Robot Inventor Reviews

26 reviews
4.8
Collectors
Investors
BrickFanatics
“51515 Robot Inventor offers five different designs for fans to build, which can them be programmed via the MINDSTORMS Robot Inventor app. Beyond the five models with instructions, there are coding challenges to complete that will require users to apply the skills they have... More learned through the process. Drag-and-drop coding teaches the process, with Python included for advanced coders.”
Full review at www.brickfanatics.com
Eurobricks
“If you are a novice robot builder, I would definitely recommend getting this set. If you want to make more advanced robots with bigger programs and more options, I'd recommend getting the EV3. A lot of (third party) stuff is available for the EV3, which allow for a ton of... More options.”
Full review at www.eurobricks.com
The Brothers Brick
“The set may not be perfect, and may not be everything LEGO Mindstorms fans hoped it would be. But it is fun, and users new to the platform are sure to enjoy it, while old hands can find some silver linings along with some new things to experience.”
Full review at www.brothers-brick.com

About Mindstorms

LEGO Mindstorms is a hardware and software system desigend for the development of programmable robots made out of TECHNIC bricks. The original LEGO Mindstorms Robotics Invention System was born out of a collaboration between MIT and the LEGO group's eductaional division. Since the release, there have been a number of generations of the Mindstorms platform: the original Robotics Invention System, NXT, NXT 2.0, and EV3 and weth each platform release, the motor and sensor capabilities have greatly expanded. Mindstorms are also sold and used as an educational tool and called Mindstorms for schools or Mindstorms Education.
Summary
Mindstorms Robot Inventor set 51515 was released on October 15, 2020, retailing for $360, it has since been retired. New, unopened sets are valued at $814, while used sets sell around $385.
Read more
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 LEGO.com/devicecheck 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.
Description provided by LEGO©