> QuickAnswer: Used humanoid robot prices in the UK range from £3,000 (NAO, educational tier) to £80,000 or more (Unitree H1 Pro, advanced bipedal). The primary risk in all used humanoid purchases is SDK and account transfer. The market is small and prices are not falling in the advanced tiers. Buyers should verify software continuity, joint condition, and actuator health before any purchase.
Used Humanoid Robot Price Guide UK 2026
The humanoid robot category is the most unusual in the used market. In almost every other robot category, used prices are lower than new and depreciate over time. In humanoids, the used market is thin, pricing is inconsistent, and some units are actively appreciating because early-production units with mature software ecosystems are more useful than newer units that lack community support.
This guide covers every major humanoid available on the UK secondhand market in 2026, organised by capability tier. Prices are based on observed UK transactions and market intelligence from the Robot Resale Index.
Price by Tier
Tier 1: Social and Educational Humanoids
These are the most accessible used humanoids and the most commonly traded. They are primarily used for education, customer interaction, and introductory research.
| Model | New Price | Used Price Range (UK) | Market Liquidity |
|---|---|---|---|
| NAO v6 (SoftBank Robotics) | ~£9,500 | £3,000 - £6,000 | Moderate |
| Pepper (SoftBank Robotics) | Discontinued (~£15,000 new) | £8,000 - £15,000 | Moderate |
NAO v6 is the benchmark used humanoid for education. It has 25 degrees of freedom, built-in cameras, microphones and speakers, and a well-documented Python and C++ SDK. Used units from universities and schools are the most common source. Inspection priorities: joint wear (particularly wrists and ankles which receive the most stress in demonstrations), battery condition, and the state of the camera modules.
Pepper was discontinued by SoftBank in 2021, which makes all remaining units secondhand by definition. The risk profile has changed: software updates have slowed, and cloud service continuity beyond 2027 is uncertain. Verify specifically which services your use case requires before purchasing a used Pepper.
Tier 2: Research-Grade Bipedals
This tier covers true bipedal robots that are suitable for academic and developer research, with SDK access and programmable locomotion.
| Model | New Price | Used Price Range (UK) | Market Liquidity |
|---|---|---|---|
| Unitree G1 | ~£14,000 | £10,000 - £18,000 | Low |
| Unitree G1 Enterprise | ~£22,000 | £14,000 - £22,000 | Very low |
Unitree G1 is the most capable used bipedal humanoid available to UK buyers at this price tier. It has 23 degrees of freedom, onboard computing, and the same SDK ecosystem as the widely-used Go2 quadruped. The used market is early-stage: units are coming from developers, early corporate pilot programmes, and international buyers reselling UK-imported units.
Due diligence is significantly more complex than for educational humanoids. The G1's actuators are custom Unitree joint motors with proprietary control interfaces. Joint health assessment requires running the manufacturer's calibration diagnostic. Do not purchase without doing so.
Tier 3: Advanced Bipedals
| Model | New Price | Used Price Range (UK) | Market Liquidity |
|---|---|---|---|
| Unitree H1 | ~£35,000 | £25,000 - £45,000 | Very low |
| Unitree H1 Pro | ~£55,000 | £40,000 - £65,000 | Very low |
| Unitree H2 | ~£65,000 | £40,000 - £70,000 | Extremely low |
Unitree H1 is the most commonly encountered advanced bipedal on the UK used market, though supply remains very thin. Units typically originate from corporate pilot programmes, research institutions, and early adopters reselling following evaluation. The H1 offers impressive dynamic locomotion and a full ROS2 SDK, making it genuinely useful for advanced research applications.
The H1 Pro variant includes upgraded perception (additional depth cameras, improved LIDAR integration) and commands a premium even used. Verify the exact variant and included sensor configuration before committing to a price.
Unitree H2 is the most capable Unitree bipedal and the newest entrant to the used market. Very few units have appeared in the UK secondhand market. Treat any H2 listing with appropriate caution about provenance and condition history.
Tier 4: Industrial-Piloting Stage (Not Available Used)
Boston Dynamics Atlas (humanoid variant), Agility Robotics Digit 5, Figure 01/02, and 1X Neo are not currently available on the UK secondhand market in any meaningful way. These are enterprise-only products sold under restrictive agreements, and manufacturers closely control their lifecycle.
This may change from 2027 onwards as pilot programmes complete and operators seek to redeploy or liquidate units. Monitor the Robot Resale Index for when these categories begin to appear.
What Drives Humanoid Robot Price
Understanding the pricing factors allows buyers to assess whether an asking price is justified.
Degrees of Freedom (DOF)
More DOF generally means more capable and more expensive. NAO has 25 DOF covering head, arms, torso, and legs. Unitree H1 has 19 DOF but those are all dynamic locomotion joints, making it capable of far more impressive whole-body movement despite fewer joints than a static demonstrator.
Actuator quality
The difference between a £5,000 educational robot and a £40,000 research bipedal is primarily actuator quality. Industrial-grade servo actuators with integrated encoders and torque sensors cost thousands per joint. The Unitree H1's hip actuators alone cost several hundred pounds each to replace. This is why advanced humanoids retain value: the replacement part cost supports a high floor.
SDK maturity and community support
A humanoid with an active developer community, comprehensive documentation, and regular software updates is worth more than a technically superior robot with poor software support. The Unitree ecosystem benefits from ROS2 support and an active GitHub community. NAO's Choregraphe software environment is well-documented after 15 years of use. Older SoftBank Pepper units are losing points here as developer support diminishes.
Manufacturer support continuation
For robots under active production, manufacturer support is available. For discontinued models (Pepper) or older NAO versions (v4, v5), verify that spare parts and repair services are accessible before buying.
What to Check Before Buying a Used Humanoid Robot
SDK and account transfer (most critical)
This is the single most important check for any used humanoid purchase. Many robots tie cloud services, OTA updates, or capability unlocks to a registered manufacturer account. If the seller's account cannot be formally transferred or deregistered and the buyer cannot register a fresh account, you may receive a robot with restricted functionality.
Steps to take:
- Contact the manufacturer directly before purchase to understand the account transfer process.
- Ask the seller for confirmation that they have initiated or completed deregistration.
- For Unitree products, verify the SDK activation status and whether cloud features are account-locked.
Joint calibration
After any transport or storage period, humanoid robots require joint recalibration. For simple educational robots like NAO, this is a software process. For advanced bipedals like G1 or H1, calibration requires running the manufacturer's diagnostic suite and may require specialist intervention if any joint is out of tolerance.
Ask the seller to run and share the calibration report before completing the transaction.
Firmware version
Confirm the firmware version installed and that it is compatible with current SDK releases. Robots stored for an extended period may have outdated firmware that requires a specific update sequence to bring current. Gaps in major version numbers can sometimes require vendor assistance.
Actuator health assessment
For advanced bipedals with proprietary actuators, check:
- Force feedback responses for each joint
- Maximum torque output against specifications
- Any anomalous noise during movement cycles
- Temperature monitoring during a 15-minute operation session
Battery health
Humanoid robot batteries, particularly in bipedals that actively balance, experience higher cycle loads than mobile robots or arms. Request battery diagnostic data showing current capacity against original specification. Budget for replacement if capacity has dropped below 80% of original.
UK Import Duties and VAT on Humanoid Robots
Used humanoid robots sold within the UK by UK-based sellers do not attract import duty (that was paid on original import). VAT treatment depends on seller status:
- VAT-registered business seller: VAT is charged at 20% on top of the advertised price, or the price is inclusive and you can reclaim if your business is VAT-registered.
- Private seller: No VAT.
For robots imported new from outside the UK (for example, purchasing directly from Unitree Robotics in China or Boston Dynamics in the US), UK customs duty applies at the HS code rate for robots, plus 20% import VAT on the CIF value plus duty. The commodity code for humanoid robots typically falls under 8479.89 or similar, with duty rates of 0% to 3.7% depending on classification. Get a formal tariff ruling from HMRC for high-value purchases.
Summary: Used Humanoid Robot Values at a Glance
| Model | Used Price (UK) | Best For |
|---|---|---|
| NAO v6 | £3,000 - £6,000 | Education, research, demonstrations |
| Pepper | £8,000 - £15,000 | Customer interaction (check software continuity) |
| Unitree G1 | £10,000 - £18,000 | Research, locomotion development |
| Unitree H1 | £25,000 - £45,000 | Advanced bipedal research |
| Unitree H1 Pro | £40,000 - £65,000 | Advanced research with perception stack |
| Unitree H2 | £40,000 - £70,000 | Leading-edge research (very limited supply) |
For the most current price data, see the Robot Resale Index. To browse available UK humanoid robot listings, visit the Robot AutoTrader browse page. For full technical specifications on each model, see the Robot Database.