NAO Robot Review: What It Is and Who Buys It

NAO is a small bipedal humanoid robot built for education and research, not for the home. It stands roughly 58 cm tall, walks, speaks, tracks faces, and runs code students write themselves.

The buyer is almost always an institution. Universities use NAO for robotics and human-robot interaction courses, schools use it for programming instruction, and research groups use it as a standard platform they can compare results on.

Its position comes from scale and standardisation rather than capability. More than 13,000 units have shipped across more than 70 countries. Published curricula, code, and research papers already exist for it.

NAO is the smaller sibling of Pepper, and the two share the NAOqi operating system. Pepper is a wheeled, tablet-equipped greeter for customer-facing work. NAO is a walking platform for teaching and research, compared in our Pepper robot review.

SpecificationNAO V6
HeightAbout 58 cm
Degrees of freedom25
ProcessorOnboard Intel Atom
CamerasTwo HD cameras
MicrophonesFour
Operating systemNAOqi
Main programming environmentsChoregraphe (visual), Python, C++
Typical distributor priceFrom around $16,990; education bundles from about $19,900
Primary marketEducation and research institutions

NAO V6 Hardware and What 25 Degrees of Freedom Buys

NAO V6 has 25 degrees of freedom, which is what allows it to walk, gesture, and manipulate light objects. Degrees of freedom are the count of independently controlled joints, and 25 puts NAO well above a hobby humanoid and well below a full-size research platform.

The sensor set is built for interaction rather than navigation. Two HD cameras handle face and object recognition, four microphones give sound-source localisation, and touch sensors on the head, hands, and feet register contact.

Onboard compute is an Intel Atom processor, which runs the behaviour stack locally. That matters in classrooms, because a robot that works without a network connection survives school IT policy.

Battery life is the practical constraint, not compute. Plan a teaching session around charging cycles rather than assuming continuous operation across a full class day.

Payload is minimal. NAO picks up light objects for demonstration; anyone needing real manipulation should look at an arm platform instead, covered in robot arms.

NAOqi and Choregraphe: The Software Is the Product

NAO's real advantage is its software stack, which is more mature than most humanoid platforms at any price. NAOqi is the onboard operating system, and Choregraphe is the visual programming environment that sits on top of it.

Choregraphe lets students build behaviours by connecting graphical blocks, which means a class can produce a working behaviour in one session. That drag-and-drop entry point is why NAO works in schools where students have no prior programming experience.

Underneath, NAO is programmable in Python and C++. This two-tier approach is the strongest pedagogical argument for the platform: the same robot serves a secondary-school class and a graduate research project.

The teaching material is the compounding advantage. Because so many institutions run NAO, published lesson plans, university course code, and research implementations already exist and can be adapted rather than written.

For alternatives at lower cost, see humanoid educational robots and robotics teaching kits.

NAO in RoboCup and Research

NAO is the designated robot of the RoboCup Standard Platform League, where every team competes with identical hardware. That single fact explains much of its research standing.

A standard platform league removes hardware from the competition. Teams cannot win by building a better robot, so the contest is entirely about perception, locomotion, and team strategy in software.

For research groups, this produces something rare: results that are directly comparable across institutions. Two labs publishing walking or vision work on NAO are describing the same machine.

That comparability is the strongest reason to buy NAO over a cheaper humanoid. If your work needs to be reproducible by another group, matching a widely deployed platform is worth more than a better specification nobody else runs.

NAO Robot Price and Where to Buy

NAO is an institutional purchase, priced accordingly. Distributor listings start around $16,990 for the robot, with education bundles from roughly $19,900 that add curriculum, training, and support.

Buy through an authorised distributor rather than a marketplace. RobotLAB is the established North American education channel, and its bundles exist because a school buying a humanoid needs lesson material more than it needs another robot.

Budget beyond the robot itself. Charging stations, spare batteries, a transport case, and staff training time are real costs that institutional quotes often separate out.

The used market is where buyers get hurt. A cheap NAO on a marketplace is usually an older generation with a degraded battery, and the software account and support path may not transfer with the hardware.

Our affordable humanoid robots under $30K page covers where NAO sits against other options at this price, and how much a humanoid robot costs covers the wider pricing picture.

The Ownership Risk Every NAO Buyer Should Check First

NAO's biggest current risk is corporate, not technical. Aldebaran, the French company behind NAO, entered receivership in June 2025. Its assets were acquired by Maxvision Technologies, which created a branch called Maxtronics to continue development.

This is the third ownership change in the platform's life. Aldebaran was acquired by SoftBank and became SoftBank Robotics Europe. It reverted to Aldebaran under United Robotics Group in April 2022, and has now moved again.

Ownership churn matters for a robot with a ten-year institutional service life. Spare parts, battery replacements, software account access, and firmware updates all depend on whoever currently owns the platform honouring them.

This is the specific question to put in writing before any purchase: who supplies spare parts and batteries today, what is the guaranteed support window, and does the software account survive an ownership change. A distributor that cannot answer all three in writing is not the right channel.

Across the humanoid platforms we track for The Bot Scout, this is the failure mode that catches institutional buyers most often. The hardware keeps working long after the support path stops, and a humanoid without spare parts becomes a display case exhibit rather than a teaching tool.

None of this makes NAO a bad purchase. It makes support terms the decisive part of the negotiation rather than an afterthought, which is a different thing.

NAO vs Pepper vs Cheaper Humanoids

NAO competes on ecosystem, not specifications, and the comparison changes depending on what you actually need. A cheaper humanoid can match its joint count and still be the wrong buy for a course.

Against Pepper, the split is clear. NAO walks and suits teaching locomotion and interaction; Pepper rolls, carries a chest tablet, and suits customer-facing deployment and interaction research.

Against low-cost humanoid kits, NAO wins on curriculum and loses badly on price. A school running one class per week does not need a $17,000 robot, and a kit at a fraction of the cost teaches the same programming fundamentals.

Against a research quadruped or arm, it depends on the research question. NAO is the right platform for human-robot interaction and bipedal work, and the wrong one for manipulation or field robotics.

The inversion case: if your programme has no requirement for reproducibility or published curriculum, the ecosystem advantage disappears and NAO's price is hard to justify.

CriterionNAO V6PepperLow-cost humanoid kit
LocomotionBipedal walkingWheeled baseUsually bipedal, limited stability
Primary useEducation and researchCustomer-facing interactionHobby and entry-level teaching
Software ecosystemNAOqi, Choregraphe, wide published curriculumNAOqi, Choregraphe, retail-focused materialVendor SDK, little shared curriculum
Research comparabilityHigh — RoboCup standard platformModerateLow
Typical priceFrom around $16,990Refurbished marketHundreds to low thousands
VerdictBest where reproducibility and curriculum matterBest for interaction research and greeting rolesBest where budget outweighs ecosystem

Bottom Line

The NAO robot remains the default humanoid for education and research because of its software stack and installed base, not its hardware specification. NAO V6 offers 25 degrees of freedom, dual HD cameras, four microphones, and onboard compute, and the NAOqi and Choregraphe pairing lets a beginner build a behaviour in one session and a researcher drop into Python or C++ on the same machine. Its status as the RoboCup Standard Platform League robot makes results directly comparable between institutions, which is the strongest argument for paying around $17,000 rather than buying a cheaper kit. The decisive issue in 2026 is ownership: Aldebaran entered receivership in June 2025 and the assets passed to Maxvision Technologies under the Maxtronics branch, so get spare parts, battery supply, and the support window confirmed in writing before you buy.

Specifying a humanoid for a school or research group? Compare NAO against the wider field in humanoid educational robots, check where it sits on price in affordable humanoid robots under $30K, and read the Pepper review if your use case is customer-facing rather than teaching.

FAQs

How much does a NAO robot cost?

NAO V6 is listed by authorised distributors from around $16,990, with education bundles starting near $19,900 that add curriculum, training, and support. Budget separately for spare batteries, a charging station, a transport case, and staff training time, which institutional quotes usually itemise apart from the robot.

Who owns the NAO robot now?

Aldebaran entered receivership in France in June 2025, and its assets were acquired by Maxvision Technologies, which created a branch called Maxtronics to continue development of the robots. This follows earlier changes from Aldebaran to SoftBank Robotics Europe and back to Aldebaran under United Robotics Group in April 2022.

What are the NAO V6 specifications?

NAO V6 stands about 58 cm tall with 25 degrees of freedom, two HD cameras, four microphones, touch sensors on the head, hands, and feet, and an onboard Intel Atom processor. It runs the NAOqi operating system and is programmed in Choregraphe, Python, or C++.

What is the difference between NAO and Pepper?

NAO is a smaller bipedal humanoid of about 58 cm used mainly for teaching and research, while Pepper is a larger wheeled humanoid of about 1.2 m with a chest tablet designed for customer-facing interaction. Both run NAOqi and are programmed in Choregraphe, so skills transfer between them.

Is NAO good for teaching programming?

Yes, and its two-tier software is the reason. Choregraphe lets beginners build working behaviours by connecting visual blocks in a single session, while Python and C++ access underneath supports graduate research on the same robot. A large body of published curricula and university course code already exists to adapt.

Why is NAO used in RoboCup?

NAO is the designated robot of the RoboCup Standard Platform League, where every team competes with identical hardware. Removing hardware differences makes the competition purely about perception, locomotion, and strategy software, and it gives research groups results that are directly comparable across institutions.

Should I buy a used NAO robot?

Be cautious. Cheap marketplace listings are usually older generations with degraded batteries, and the software account and support path may not transfer with the hardware. Given the platform's ownership changes, confirm in writing who supplies spare parts and batteries today and whether account access survives the transfer before buying used.

Primary Sources