Hubo 2 vs Walker S2
Side-by-side comparison of Hubo 2 (KAIST) and Walker S2 (UBTECH Robotics Corp Ltd.) — specs, pricing, Robo Index, and verified deployments. Updated daily.
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Optimized for Manufacturing buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- Hubo 2South Korea
- Walker S2China
Year First Available
- Hubo 22009
- Walker S22025
Verified Deployments
- Hubo 20 Deployments
- Walker S20 Deployments
Layer 2: Operational
Price
- Hubo 2$400,000 USD
- Walker S2$99,995–$314,286 USD
Battery / Shift Runtime
- Hubo 21.5 hrs
- Walker S22 hrs
Availability Status
- Hubo 2ACTIVE
- Walker S2ACTIVE
Physical Form Factor
Height
- Hubo 2125 mm
- Walker S2176 mm
Weight
- Hubo 245 kg
- Walker S295 kg
Mobility Type
- Hubo 2bipedal
- Walker S2bipedal
Humanoid Subtype
- Hubo 2full bipedal
- Walker S2full bipedal
Walking Speed
- Hubo 21.5 m/s
- Walker S22 m/s
Running Capable
- Hubo 2dynamic walk
- Walker S2—
Stair Climbing
- Hubo 2No
- Walker S2Yes
Terrain
- Hubo 2flat indoor
- Walker S2flat indoor, stairs
Payload & Dexterity
Payload
- Hubo 22 kg
- Walker S252 kg
Total DOF
- Hubo 240
- Walker S252
Arm DOF
- Hubo 27
- Walker S27
Hand DOF
- Hubo 25
- Walker S27
Bimanual Coordination
- Hubo 2Yes
- Walker S2Yes
Compute & AI
Onboard Compute
- Hubo 2Two PC/104 embedded computers with solid-state drives
- Walker S2X86 + NVIDIA Jetson Orin
VLM Capable
- Hubo 2No
- Walker S2No
Foundation Models
- Hubo 2—
- Walker S2false
Imitation Learning
- Hubo 2No
- Walker S2No
Programming
- Hubo 2code_ros, proprietary_app, teleoperation
- Walker S2code_ros
Battery & Power
Runtime
- Hubo 21.5 hrs
- Walker S22 hrs
Battery Swap
- Hubo 2No
- Walker S2Yes
Software
SDK Languages
- Hubo 2code_ros, proprietary_app, teleoperation
- Walker S2Python
ROS Support
- Hubo 2Yes
- Walker S2Yes
Open API
- Hubo 2Yes
- Walker S2Yes
Reliability
Deployment Maturity
- Hubo 2research
- Walker S2commercial
Commercial
Price (USD)
- Hubo 2$400,000 USD
- Walker S2$99,995–$314,286 USD
Price Tier
- Hubo 2150K+
- Walker S280-150K
Pricing Model
- Hubo 2purchase
- Walker S2purchase
Applications
- Hubo 2robotics education, research, service robotics, disaster response
- Walker S2industrial automation, 24/7 manufacturing
| ||
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | South Korea | China |
| Year First Available (values differ) | 2009 | 2025 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | $400,000 USD | $99,995–$314,286 USD |
| Battery / Shift Runtime (values differ) | 1.5 hrs | 2 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical Form Factor | ||
| Height (values differ) | 125 mm | 176 mm |
| Weight (values differ) | 45 kg | 95 kg |
| Mobility Type | bipedal | bipedal |
| Humanoid Subtype | full bipedal | full bipedal |
| Walking Speed (values differ) | 1.5 m/s | 2 m/s |
| Running Capable (values differ) | dynamic walk | — |
| Stair Climbing (values differ) | No | Yes |
| Terrain (values differ) | flat indoor | flat indoor, stairs |
| Payload & Dexterity | ||
| Payload (values differ) | 2 kg | 52 kg |
| Total DOF (values differ) | 40 | 52 |
| Arm DOF | 7 | 7 |
| Hand DOF (values differ) | 5 | 7 |
| Bimanual Coordination | Yes | Yes |
| Compute & AI | ||
| Onboard Compute (values differ) | Two PC/104 embedded computers with solid-state drives | X86 + NVIDIA Jetson Orin |
| VLM Capable | No | No |
| Foundation Models (values differ) | — | false |
| Imitation Learning | No | No |
| Programming (values differ) | code_ros, proprietary_app, teleoperation | code_ros |
| Battery & Power | ||
| Runtime (values differ) | 1.5 hrs | 2 hrs |
| Battery Swap (values differ) | No | Yes |
| Software | ||
| SDK Languages (values differ) | code_ros, proprietary_app, teleoperation | Python |
| ROS Support | Yes | Yes |
| Open API | Yes | Yes |
| Reliability | ||
| Deployment Maturity (values differ) | research | commercial |
| Commercial | ||
| Price (USD) (values differ) | $400,000 USD | $99,995–$314,286 USD |
| Price Tier (values differ) | 150K+ | 80-150K |
| Pricing Model | purchase | purchase |
| Applications (values differ) | robotics education, research, service robotics, disaster response | industrial automation, 24/7 manufacturing |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Payload (Peak), Arm Reach, Grip Strength, Manipulation Repeatability, Tool Use, Compute Platform, Teleoperation, Battery Capacity, Charging Time, Charging Method, Avg Power Consumption, Force-Limited Arms, Fall Recovery, Fall Detection Response, Emergency Stops, Human Detection Method, Safe Speed Near Humans, Simulation Platforms, Air-Gap Capable, MTBF, Task Success Rate, IP Rating, Noise Level, RaaS / Month, Developer Unit Price, Delivery Lead Time, Warranty, Production Pilots
ROI Comparison
Same operating assumptions across every robot — the only difference is price. Set your numbers once to see which pays back fastest.
Annual labor displaced (per robot): $50,000
| Metric | Hubo 2 | Walker S2 |
|---|---|---|
| Investment | $400,000 | $207,140 |
| Payback period | 96.0 mo | 49.7 mo |
| Net savings (5 yr) | -$150,000 | $42,860 |
| ROI (5 yr) | -38% | +21% |
Estimates labor-cost displacement only — not a full total cost of ownership. Actual ROI depends on integration, maintenance, training, downtime, and task fit. Converted currencies are indicative; USD is the price of record.
Trade-offs at a glance
Frequently asked
Who makes Hubo 2 and Walker S2?
Hubo 2 is made by KAIST, based in KR. Walker S2 is made by UBTECH Robotics Corp Ltd., based in CN.
When were Hubo 2 and Walker S2 launched?
Hubo 2 launched in 2009. Walker S2 launched in 2025.
How do Hubo 2 and Walker S2 compare on the Robo Index?
Hubo 2 grades AA on the Robo Index. Walker S2 grades AA. The Robo Index is a credibility grade (AAA … C) that blends commercial maturity, verified deployments, company standing, and independent coverage — see methodology for the full breakdown.
What is the payload difference between Hubo 2 and Walker S2?
Hubo 2 carries up to 2 kg. Walker S2 carries up to 15 kg.
Are Hubo 2 and Walker S2 in the same category?
Both robots are classified as Humanoid on Robolist. Filters and ranking treat them as direct alternatives.
What is the realistic total cost of ownership for Humanoid robots?
Hardware cost is one input. Humanoid TCO also includes integration, training, downtime, and end-of-life. Our breakdown: Humanoid TCO: Hardware, Cloud Subscriptions, and the Cost of Teleop Time.
What should a buyer ask vendors when choosing between Hubo 2 and Walker S2?
Spec sheets only show part of the story. Useful vendor questions cover support, lifecycle, integration cost, and references. We have a buyer-focused checklist: Vendor Selection for Humanoids: The 10 Questions You Must Ask.
Going deeper — picking the right robot
Humanoid TCO: Hardware, Cloud Subscriptions, and the Cost of Teleop Time
8 min readHumanoid Robots
Vendor Selection for Humanoids: The 10 Questions You Must Ask
10 min readHumanoid Robots
Running a Humanoid Pilot: Scope, Success Criteria, and Exit Options
9 min readHumanoid Robots
Build vs buy vs lease: which model fits a first deployment
8 min readChoosing Your First Robot
The hidden specs vendors hope you'll miss
10 min readReading the Spec Sheet
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About this comparison
Hubo 2 vs Walker S2 compares two robots in the humanoid category. All data is sourced from manufacturer spec sheets, verified deployments, and third-party filings; see our methodology for how the Robo Index is calculated.