Customer reviews from LEGO
LEGO - Technic App-Controlled Transformation Vehicle 42140
Average customer rating
4.5 out of 5
4.5
(25 Reviews)
Open Ratings Snapshot
Rating breakdown 25 reviews
5 Stars
19
4 Stars
3
3 Stars
1
2 Stars
1
1 Star
1
91%of customers recommend this product. 
(
21 out of 23
)
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Customer Reviews for LEGO - Technic App-Controlled Transformation Vehicle 42140
Customer Rating
5 out of 5
5
A TANK!
on March 17, 2022
Posted by: shadow
[This review was collected as part of a promotion.] This is probably the best toy I have ever seen by any company, not just by LEGO. Building took a little bit of time, since there are a lot of pieces to put together and we enjoyed the process very much. High quality pieces, very well thought design, great app to control the vehicle, and more... Amazing gift for any 9+ year olds.
I would recommend this to a friend!
Written by a customer while visiting LEGO
Customer Rating
5 out of 5
5
Transforming Vehicle
on April 24, 2022
Posted by: Anonymous
It's been a long time since I've built such a cleverly designed technic model. The fact that it transforms without the use of additional motors is is pretty amazing. I really liked this build and I really like the way it drives.
I would recommend this to a friend!
Written by a customer while visiting LEGO
Customer Rating
5 out of 5
5
Amazing Bulid
on May 15, 2022
Posted by: DragonZ
I build this within 2 hours. Lego is my favorite toy Brand. I cannot complain. Totally recommanded.
I would recommend this to a friend!
Written by a customer while visiting LEGO
Customer Rating
5 out of 5
5
Awesome
on July 18, 2023
Posted by: CrankyBoat094
Very pleased with this build, especially at the price the app control function is better than i expected. Keep in mind that its not the fastest RC style car but the tracks make it a very nice and practical indoor RC car that can climb over obstacles well. The app even comes with built-in games where you can use the car to drive through virtual gates or collect power cells. My son was also very excited to share with everyone the inner workings of the car with the included motors and battery pack. Overall this is a great buy and would highly recomend to anyone that loves Technics and RC cars
I would recommend this to a friend!
Written by a customer while visiting LEGO
Customer Rating
5 out of 5
5
Great lego set
on April 19, 2022
Posted by: arno
[This review was collected as part of a promotion.] I received a few weeks ago the Lego App controlled Transformation Vehicle and my son loves it.
It took him some time to build it, there are many steps and he needed to think a bit on his 3D vision and put the pieces at the correct place. I find it very nice, it makes him learn and play at the same time.
We already had the app on a tablet so it was easy to select a new lego set. The connection between the App and the set is reliable, efficient and fast. The App describes the steps to follow, a kid can easily do it on his own.
I also like the small tutorial on how use the App and on how to control the set. On the App you can see the angle of the set, once it switches sides you have a different view which matches the color of the set.
In conclusion, a great lego set, my son does not stop playing with it. He builds tracks with obstacles to go over or around. It is a pleasure to watch him.
I would recommend this to a friend!
Written by a customer while visiting LEGO
Customer Rating
5 out of 5
5
Coolest Transformer on the Market
on March 9, 2022
Posted by: Abruebs13
[This review was collected as part of a promotion.] 10/10 recommend. Where do I begin? This Lego App-Controlled Transformer is the coolest thing I’ve seen in years. My 3 and 5 year old (and 35 year old husband) were in awe! It was fun to build and transform as a family!
I would recommend this to a friend!
Written by a customer while visiting LEGO
Customer Rating
5 out of 5
5
Such a fun LEGO set!
on March 6, 2022
Posted by: AmandaE29
[This review was collected as part of a promotion.] Hello new world LEGO sets! I am in awe at how far these have come and the ability to do so many cool things. This is such a fun project that takes time, focus, teamwork! Our family loves LEGOs and use the time we spend working on them as bonding time. The fact that you get to actually control this set with an app has really put a spin on things because the whole family was so excited to get done and reward their hard work by seeing what they built and getting to play with! This is a game changer and I’m so excited to see what the future LEGO sets come up with next! Definitely recommend
I would recommend this to a friend!
Written by a customer while visiting LEGO
Customer Rating
3 out of 5
3
Battery pack?
on March 25, 2022
Posted by: ChefProlificTrakkar
I would say my only grip is the battery pack hidden behind 4 screws. Screws for one take you out of the Lego experience. Number two is why isn't this a rechargeable battery pack????????? I am totally surprised and baffle by it. Should be a battery pack with an include charging box. OR sell an alternative. Also, design it so screws are not needed. Your Lego you have alternatives for connecting a box and keeping it closed.......
I would recommend this to a friend!
Written by a customer while visiting LEGO
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