AGIBOT A2 Ultra vs Walker S1
Side-by-side comparison of AGIBOT A2 Ultra (Agibot Innovation (Shanghai) Technology Co., Ltd.) and Walker S1 (UBTECH Robotics Corp Ltd.) — specs, pricing, Robo Score, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Manufacturing buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
- AGIBOT A2 UltraChina
- Walker S1China
Year First Available
- AGIBOT A2 Ultra—
- Walker S12024
Verified Deployments
- AGIBOT A2 Ultra0 Deployments
- Walker S10 Deployments
Layer 2: Operational
Price
- AGIBOT A2 UltraContact for quote
- Walker S1$75,000 USD
Battery / Shift Runtime
- AGIBOT A2 Ultra—
- Walker S12 hrs
Availability Status
- AGIBOT A2 UltraACTIVE
- Walker S1ACTIVE
Physical Form Factor
Height
- AGIBOT A2 Ultra169 mm
- Walker S1130 mm
Weight
- AGIBOT A2 Ultra69 kg
- Walker S176 kg
Mobility Type
- AGIBOT A2 Ultrabipedal
- Walker S1bipedal
Humanoid Subtype
- AGIBOT A2 Ultrafull bipedal
- Walker S1full bipedal
Walking Speed
- AGIBOT A2 Ultra1.2 m/s
- Walker S10.8 m/s
Stair Climbing
- AGIBOT A2 UltraNo
- Walker S1Yes
Terrain
- AGIBOT A2 Ultraflat indoor, uneven outdoor
- Walker S1flat indoor, uneven outdoor, gravel, tile, thick carpet, lawn
Payload & Dexterity
Payload
- AGIBOT A2 Ultra2 kg
- Walker S110 kg
Total DOF
- AGIBOT A2 Ultra40
- Walker S141
Arm DOF
- AGIBOT A2 Ultra7
- Walker S17
Hand DOF
- AGIBOT A2 Ultra6
- Walker S16
Arm Reach
- AGIBOT A2 Ultra—
- Walker S160 cm
Bimanual Coordination
- AGIBOT A2 UltraNo
- Walker S1Yes
Compute & AI
Onboard Compute
- AGIBOT A2 UltraNVIDIA Jetson Orin 64G
- Walker S1Intel i7 8665U Frequency 1.9Ghz *2, NVIDIA GT1030 graphics card, 384 cores
VLM Capable
- AGIBOT A2 UltraNo
- Walker S1No
Foundation Models
- AGIBOT A2 Ultrafalse
- Walker S1false
Imitation Learning
- AGIBOT A2 UltraNo
- Walker S1No
Programming
- AGIBOT A2 UltraSmart OTA Upgrade
- Walker S1ROS 2.0
Battery & Power
Runtime
- AGIBOT A2 Ultra3 hrs
- Walker S12 hrs
Battery Swap
- AGIBOT A2 UltraYes
- Walker S1No
Software
SDK Languages
- AGIBOT A2 UltraSmart OTA Upgrade
- Walker S1Python
ROS Support
- AGIBOT A2 UltraNo
- Walker S1Yes
Open API
- AGIBOT A2 UltraNo
- Walker S1Yes
Reliability
Deployment Maturity
- AGIBOT A2 Ultracommercial
- Walker S1commercial
Commercial
Price (USD)
- AGIBOT A2 UltraContact for quote
- Walker S1$75,000 USD
Price Tier
- AGIBOT A2 Ultra500k_plus
- Walker S140-80K
Pricing Model
- AGIBOT A2 Ultraoutright purchase
- Walker S1purchase
Warranty
- AGIBOT A2 Ultra—
- Walker S12 yrs
Applications
- AGIBOT A2 Ultramanufacturing_assembly
- Walker S1service, entertainment, education
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country | China | China |
| Year First Available (values differ) | — | 2024 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | Contact for quote | $75,000 USD |
| Battery / Shift Runtime (values differ) | — | 2 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical Form Factor | ||
| Height (values differ) | 169 mm | 130 mm |
| Weight (values differ) | 69 kg | 76 kg |
| Mobility Type | bipedal | bipedal |
| Humanoid Subtype | full bipedal | full bipedal |
| Walking Speed (values differ) | 1.2 m/s | 0.8 m/s |
| Stair Climbing (values differ) | No | Yes |
| Terrain (values differ) | flat indoor, uneven outdoor | flat indoor, uneven outdoor, gravel, tile, thick carpet, lawn |
| Payload & Dexterity | ||
| Payload (values differ) | 2 kg | 10 kg |
| Total DOF (values differ) | 40 | 41 |
| Arm DOF | 7 | 7 |
| Hand DOF | 6 | 6 |
| Arm Reach (values differ) | — | 60 cm |
| Bimanual Coordination (values differ) | No | Yes |
| Compute & AI | ||
| Onboard Compute (values differ) | NVIDIA Jetson Orin 64G | Intel i7 8665U Frequency 1.9Ghz *2, NVIDIA GT1030 graphics card, 384 cores |
| VLM Capable | No | No |
| Foundation Models | false | false |
| Imitation Learning | No | No |
| Programming (values differ) | Smart OTA Upgrade | ROS 2.0 |
| Battery & Power | ||
| Runtime (values differ) | 3 hrs | 2 hrs |
| Battery Swap (values differ) | Yes | No |
| Software | ||
| SDK Languages (values differ) | Smart OTA Upgrade | Python |
| ROS Support (values differ) | No | Yes |
| Open API (values differ) | No | Yes |
| Reliability | ||
| Deployment Maturity | commercial | commercial |
| Commercial | ||
| Price (USD) (values differ) | Contact for quote | $75,000 USD |
| Price Tier (values differ) | 500k_plus | 40-80K |
| Pricing Model (values differ) | outright purchase | purchase |
| Warranty (values differ) | — | 2 yrs |
| Applications (values differ) | manufacturing_assembly | service, entertainment, education |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Running Capable, Payload (Peak), 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, 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 | AGIBOT A2 Ultra | Walker S1 |
|---|---|---|
| Investment | No price | $75,000 |
| Payback period | — | 18.0 mo |
| Net savings (5 yr) | — | $175,000 |
| ROI (5 yr) | — | +233% |
AGIBOT A2 Ultra has no listed price, so payback can't be computed. Contact the manufacturer for a quote.
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 AGIBOT A2 Ultra and Walker S1?
AGIBOT A2 Ultra is made by Agibot Innovation (Shanghai) Technology Co., Ltd., based in CN. Walker S1 is made by UBTECH Robotics Corp Ltd., based in CN.
How do AGIBOT A2 Ultra and Walker S1 compare on the Robo Score?
AGIBOT A2 Ultra scores 65.3 on the Robo Score. Walker S1 scores 69.6. The Robo Score is a 0–100 credibility figure blending commercial maturity, verified deployments, company standing, and independent coverage — see methodology for the full breakdown.
Are AGIBOT A2 Ultra and Walker S1 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 AGIBOT A2 Ultra and Walker S1?
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
AGIBOT A2 Ultra vs Walker S1 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 Score is calculated.