LEGO Robot Inventor 51515
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Retailer pricesPrice history 51515
Full price history at a glance.
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Daily lowest price tracked across 1 Dutch retailers. The dotted line marks LEGO's recommended retail price.
Source: daily measurement at 1 Dutch retailers, 22 Jan 2026 – 28 Jan 2026. RRP via LEGO.com.
| Date | Price | Retailer | Stock |
|---|---|---|---|
| €709,95 | Bol.com | In stock | |
| €709,95 | Bol.com | In stock | |
| €709,95 | Bol.com | In stock | |
| €709,95 | Bol.com | In stock | |
| €709,95 | Bol.com | In stock | |
| €709,95 | Bol.com | In stock | |
| €709,95 | Bol.com | In stock |
Price will likely move slightly.
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Projected price path
About this set
What to know about LEGO 51515 before you buy.
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. Take your play experience to the next level 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. 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 LEGO.com/devicecheck for a list of compatible devices). 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. 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. 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. 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.
All about this set
Background, build experience, collector context, and buying notes in one story.
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. Take your play experience to the next level 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. 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 LEGO.com/devicecheck for a list of compatible devices). 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. 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. 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. 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.
When current prices are available, buying context appears here.
Instructions & specifications
Dimensions, pieces, build steps, and the official PDF building instruction.
Parts inventory
Known set data around pieces and build context.
Technic Pins
Technic Pin with Friction Ridges Lengthwise and Center Slots
Part ID 2780 · Black
Qty 175
Technic Pin Long with Friction Ridges Lengthwise, 2 Center Slots
Part ID 6558 · Blue
Qty 82
Technic Axle Pin with Friction Ridges Lengthwise
Part ID 43093 · Blue
Qty 60
Technic Pin without Friction Ridges Lengthwise
Part ID 3673 · Light Bluish Gray
Qty 18
Technic Axle Pin 3L with Friction Ridges Lengthwise and 1L Axle
Part ID 11214 · Dark Bluish Gray
Qty 14
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]
Part ID 32054 · Light Bluish Gray
Qty 12
Technic Pin 1/2
Part ID 4274 · Light Bluish Gray
Qty 10
Technic Pin Long with Friction Ridges Lengthwise and Stop Bush [3 Lateral Holes, Big Pin Hole]
Part ID 32054 · Red
Qty 6
Technic Pin Long without Friction Ridges
Part ID 32556 · Tan
Qty 6
Technic Axle Pin without Friction Ridges Lengthwise
Part ID 3749 · Tan
Qty 6
Technic Pin Double with Axle Hole - Squared Holes
Part ID 65098 · Light Bluish Gray
Qty 4
Technic Pin with Friction Ridges Lengthwise and Towball
Part ID 6628 · Black
Qty 4
Technic Connectors
Technic Pin Connector Hub with 1 Pin with Friction Ridges Lengthwise [Square Holes]
Part ID 65487 · White
Qty 18
Technic Pin Connector Hub Perpendicular 3L with 4 Pins (Squared Holes)
Part ID 65489 · Light Bluish Gray
Qty 12
Technic Pin Connector Round 1L [Beam]
Part ID 18654 · White
Qty 10
Technic Axle and Pin Connector Perpendicular Double
Part ID 32291 · Black
Qty 8
Technic Axle Connector Smooth [with x Hole + Orientation]
Part ID 59443 · White
Qty 8
Technic Pin Connector Round [Slotted]
Part ID 62462 · Black
Qty 8
Technic Axle and Pin Connector Perpendicular Triple
Part ID 63869 · Light Bluish Gray
Qty 7
Technic Pin Connector Round 1L [Beam]
Part ID 18654 · Black
Qty 6
Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole
Part ID 32184 · Light Bluish Gray
Qty 6
Technic Axle and Pin Connector Angled #4 - 135°
Part ID 32192 · White
Qty 6
Technic Axle and Pin Connector Angled #1
Part ID 32013 · White
Qty 5
Technic Pin Connector Hub with 1 Axle
Part ID 22961 · Black
Qty 4
Technic Pin Connector Perpendicular Long
Part ID 32557 · Black
Qty 4
Technic Axle and Pin Connector Perpendicular Double Split
Part ID 41678 · Black
Qty 4
Technic Axle and Pin Connector Perpendicular 3L with 2 Pin Holes
Part ID 42003 · Dark Turquoise
Qty 4
Technic Pin Connector Hub with 2 Pins with Friction Ridges Lengthwise [Small Squared Pin Holes]
Part ID 44874 · Light Bluish Gray
Qty 4
Technic Axle Connector Double Flexible [Rubber]
Part ID 45590 · Black
Qty 4
Technic Pin Connector Hub Perpendicular 3 x 3 Bent with 4 Pins (Pin Ridges Along Part)
Part ID 49130 · Light Bluish Gray
Qty 4
Technic Axle Connector with Axle Hole
Part ID 32039 · Black
Qty 3
Technic Pin Connector Hub with 2 Perpendicular Axles
Part ID 10197 · Black
Qty 2
Technic Axle and Pin Connector Angled #5 - 112.5°
Part ID 32015 · White
Qty 2
Technic Axle and Pin Connector Perpendicular 3L with Centre Pin Hole
Part ID 32184 · Black
Qty 2
Technic Axle and Pin Connector Perpendicular Double 4L
Part ID 98989 · Light Bluish Gray
Qty 2
Technic Pin Connector Round 1L [Beam]
Part ID 18654 · Dark Turquoise
Qty 1
Technic Driving Ring Connector
Part ID 18948 · White
Qty 1
Technic Axle and Pin Connector Angled #6 - 90°
Part ID 32014 · Black
Qty 1
Technic Axle and Pin Connector Angled #2 - 180°
Part ID 32034 · White
Qty 1
Technic Beams
Technic Beam 3 x 5 L-Shape Thick
Part ID 32526 · Black
Qty 12
Technic Beam 1 x 7 Thick
Part ID 32524 · Black
Qty 11
Technic Beam 1 x 3 Thick
Part ID 32523 · Black
Qty 10
Technic Beam 1 x 5 Thick
Part ID 32316 · Dark Turquoise
Qty 9
Technic Beam 1 x 7 Bent (4 - 4) Thick
Part ID 32348 · Black
Qty 9
Technic Connector Beam 3 x 3
Part ID 39793 · Dark Turquoise
Qty 9
Technic Beam 1 x 11.5 Double Bent Thick
Part ID 32009 · Black
Qty 8
Technic Beam 1 x 5 Thick
Part ID 32316 · Black
Qty 7
Technic Beam 1 x 11 Thick
Part ID 32525 · Black
Qty 7
Technic Beam 2 x 4 L-Shape Thick
Part ID 32140 · Black
Qty 6
Technic Beam 2 x 4 L-Shape Thick
Part ID 32140 · Dark Turquoise
Qty 6
Technic Beam 1 x 15 Thick
Part ID 32278 · Black
Qty 5
Technic Beam 1 x 13 Thick
Part ID 41239 · White
Qty 5
Technic Beam 1 x 5 Thin with Axle Holes on Ends
Part ID 11478 · Black
Qty 4
Technic Beam 1 x 9 Bent (7 - 3) Thick
Part ID 32271 · Black
Qty 4
Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole
Part ID 60483 · White
Qty 3
Technic Beam 1 x 3 Thick
Part ID 32523 · Red
Qty 2
Technic Beam 1 x 3 Thick
Part ID 32523 · Green
Qty 2
Technic Beam 1 x 3 Thick
Part ID 32523 · Blue
Qty 2
Technic Beam 1 x 3 Thick
Part ID 32523 · Yellow
Qty 2
Technic Beam 1 x 3 Thick
Part ID 32523 · White
Qty 2
Technic Beam 1 x 2 Thick with Pin Hole and Axle Hole
Part ID 60483 · Black
Qty 2
Technic Beam 1 x 7 Thick
Part ID 32524 · White
Qty 1
Technic Axles
Technic Axle 3 with Stop
Part ID 24316 · Reddish Brown
Qty 12
Technic Axle 2 Notched
Part ID 32062 · Red
Qty 10
Technic Axle 3
Part ID 4519 · Light Bluish Gray
Qty 9
Technic Axle 4 with Stop
Part ID 87083 · Dark Bluish Gray
Qty 6
Technic Axle 5
Part ID 32073 · Yellow
Qty 4
Technic Axle 4
Part ID 3705 · Black
Qty 4
Technic Axle 7
Part ID 44294 · Light Bluish Gray
Qty 4
Technic Axle 8 with Stop
Part ID 55013 · Dark Bluish Gray
Qty 4
Technic Axle 5 with Stop
Part ID 15462 · Reddish Brown
Qty 2
Technic Axle 6
Part ID 3706 · Red
Qty 2
Technic Axle 8
Part ID 3707 · Black
Qty 2
Technic Axle 12
Part ID 3708 · Black
Qty 2
Technic Axle 5.5 with Stop [Rounded Short End]
Part ID 59426 · Dark Bluish Gray
Qty 2
Technic Axle 9
Part ID 60485 · Yellow
Qty 2
Technic Axle 4 with Centre Stop
Part ID 99008 · Tan
Qty 2
Technic Bushes
Technic Bush
Part ID 3713 · Light Bluish Gray
Qty 10
Technic Bush 1/2 Smooth with Axle Hole Semi-Reduced
Part ID 32123b · Light Bluish Gray
Qty 1
Bricks Round and Cones
Brick Round 1 x 1 diameter Tube with 90 Degree Elbow (2 x 2 x 1) and Axle Holes (Crossholes) at each end
Part ID 25214 · Black
Qty 8
Electronics
Sensor, Color, SPIKE
Part ID 37308 · White
Qty 1
Sensor, Distance, SPIKE
Part ID 37316 · White
Qty 1
Cable, USB, SPIKE / Mindstorms Robot Inventor
Part ID 39881 · White
Qty 1
Wheels and Tyres
Wheel 57 x 14 with 4 Spokes with 2 Holes and Black Integral Tire
Part ID 39367pat0002 · Black
Qty 6
Wheel 18 x 14 with Pin Hole
Part ID 55889 · Black
Qty 4
Wheel 18 x 8 with Fake Bolts and Shallow Spokes and Axle Hole
Part ID 56903 · White
Qty 4
Tyre Offset Tread with Center Band 23 x 7
Part ID 61254 · Black
Qty 4
Technic Gears
Technic Gear 12 Tooth Bevel
Part ID 6589 · Tan
Qty 6
Technic Gear 20 Tooth Double Bevel with Axle Hole Type 1 [+ Opening]
Part ID 18575 · Tan
Qty 4
Technic Gear 12 Tooth Double Bevel
Part ID 32270 · Black
Qty 4
Technic Gear 8 Tooth [Reinforced]
Part ID 10928 · Dark Bluish Gray
Qty 2
Technic Gear 24 Tooth [New Style with Single Axle Hole]
Part ID 3648b · Dark Bluish Gray
Qty 2
Technic Turntable Small Top
Part ID 99009 · Light Bluish Gray
Qty 2
Technic Turntable Small Base, 28 Tooth
Part ID 99010 · Black
Qty 2
Technic Turntable Large Type 3 Top, 60 Tooth
Part ID 18938 · Black
Qty 1
Technic Turntable Large Type 3 Base
Part ID 18939 · Light Bluish Gray
Qty 1
Technic Gear 36 Tooth Double Bevel
Part ID 32498 · Black
Qty 1
Differential Gear - 28 Tooth with Round Axle Hole
Part ID 65413 · Red
Qty 1
Differential Gear House
Part ID 65414 · Light Bluish Gray
Qty 1
Large Buildable Figures
Large Figure Weapon, Barrel with 2 Pin Holes and 3 Axle Holes
Part ID 98585 · Black
Qty 6
Technic Beams Special
Technic Beam Frame 5 x 7 with 3 x 5 Opening Thick
Part ID 64179 · Black
Qty 5
Technic Beam 3 x 5 Thick [90° Offset Centre Beam Holes]
Part ID 14720 · Light Bluish Gray
Qty 2
Technic Beam Frame 11 x 15
Part ID 39790 · Black
Qty 2
Technic Beam Frame 7 x 11
Part ID 39794 · Black
Qty 2
Technic Panels
Technic Panel 5 x 11 x 1
Part ID 64782 · White
Qty 4
Technic Panel Fairing #6 Long Smooth, Side B
Part ID 64393 · White
Qty 3
Technic Panel Fairing #5 Long Smooth, Side A
Part ID 64681 · White
Qty 3
Technic Panel Fairing #21 5L Small Smooth, Side B
Part ID 11946 · White
Qty 2
Technic Panel Fairing #22 5L Small Smooth, Side A
Part ID 11947 · White
Qty 2
Technic Panel 3 x 11 x 1
Part ID 15458 · White
Qty 2
Technic Panel Curved and Bent 6 x 3
Part ID 24116 · White
Qty 2
Technic Panel Curved 7 x 3 with 2 Pin Holes through Panel Surface
Part ID 24119 · White
Qty 2
Technic Panel Fairing # 4 Small Smooth Long, Side B
Part ID 64391 · White
Qty 2
Technic Panel Fairing # 3 Small Smooth Long, Side A
Part ID 64683 · White
Qty 2
Technic Panel Fairing #1 Small Smooth Short, Side A
Part ID 87080 · White
Qty 2
Technic Panel Fairing #2 Small Smooth Short, Side B
Part ID 87086 · White
Qty 2
Plates Special
Plate Special 2 x 2 with Pin on Bottom
Part ID 2476a · Light Bluish Gray
Qty 2
Bars, Ladders and Fences
Antenna 8H Whip
Part ID 2569 · Black
Qty 2
Tiles
Tile 1 x 2 with Groove
Part ID 3069b · Black
Qty 2
Tile 1 x 2 with Groove
Part ID 3069b · Dark Turquoise
Qty 2
Tile 1 x 8 with Groove
Part ID 4162 · Black
Qty 2
Tile 1 x 6 with Groove
Part ID 6636 · Black
Qty 2
Tile 2 x 4 with Groove
Part ID 87079 · Dark Turquoise
Qty 1
Technic Special
Technic Ball Joint
Part ID 32474 · Dark Turquoise
Qty 2
Projectiles / Launchers
Projectile, Arrow with Shaft, Hollow Black Rubber End
Part ID 46537 · Light Bluish Gray
Qty 2
Launcher, Brick Special 2 x 6 Spring Shooter with Light Bluish Gray Top
Part ID 49743c01 · Dark Bluish Gray
Qty 2
Projectile, Large Figure Weapon, Zamor Sphere / Ball
Part ID 54821 · Red
Qty 1
Tubes and Hoses
Hose Rigid 3mm D. 8L / 6.4cm
Part ID 75c08 · Light Bluish Gray
Qty 2
String, Bands and Reels
Rubber Belt Small [15mm ID] [Round Cross Section]
Part ID 85543 · White
Qty 2
Plates Round Curved and Dishes
Dish 6 x 6 Inverted (Radar) with Solid Studs
Part ID 44375b · White
Qty 1
Stickers
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All retailer prices
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This context is based on 7 price points across 0 retailers. The chart on the page remains the full interactive source.
Price forecast
Conservative baseline for the next period.
The signal is mixed. Small movements are more likely than a large drop.
FAQ & set details
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