Unitree R1 Base vs Walker S1
Side-by-side comparison of Unitree R1 Base (Unitree Robotics) and Walker S1 (UBTECH Robotics Corp Ltd.) — specs, pricing, Robo Score, and verified deployments. Updated daily.
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Layer 1: Identity & Trust
Manufacturer Country
- Unitree R1 BaseChina
- Walker S1China
Year First Available
- Unitree R1 Base—
- Walker S12024
Verified Deployments
- Unitree R1 Base0 Deployments
- Walker S10 Deployments
Layer 2: Operational
Price
- Unitree R1 Base$4,900–$5,900 USD
- Walker S1$75,000 USD
Battery / Shift Runtime
- Unitree R1 Base1 hrs
- Walker S12 hrs
Availability Status
- Unitree R1 BaseACTIVE
- Walker S1ACTIVE
Physical Form Factor
Height
- Unitree R1 Base121 mm
- Walker S1130 mm
Weight
- Unitree R1 Base25 kg
- Walker S176 kg
Mobility Type
- Unitree R1 Basebipedal
- Walker S1bipedal
Humanoid Subtype
- Unitree R1 Basefull bipedal
- Walker S1full bipedal
Walking Speed
- Unitree R1 Base2.5 m/s
- Walker S10.8 m/s
Running Capable
- Unitree R1 Baserun capable
- Walker S1—
Stair Climbing
- Unitree R1 BaseNo
- Walker S1Yes
Terrain
- Unitree R1 Baseindoor
- Walker S1flat indoor, uneven outdoor, gravel, tile, thick carpet, lawn
Payload & Dexterity
Payload
- Unitree R1 Base2 kg
- Walker S110 kg
Total DOF
- Unitree R1 Base40
- Walker S141
Arm DOF
- Unitree R1 Base—
- Walker S17
Hand DOF
- Unitree R1 Base—
- Walker S16
Arm Reach
- Unitree R1 Base—
- Walker S160 cm
Bimanual Coordination
- Unitree R1 BaseNo
- Walker S1Yes
Compute & AI
Onboard Compute
- Unitree R1 Base100 TOPS
- Walker S1Intel i7 8665U Frequency 1.9Ghz *2, NVIDIA GT1030 graphics card, 384 cores
Compute Platform
- Unitree R1 Base8-core high-performance CPU
- Walker S1—
VLM Capable
- Unitree R1 BaseNo
- Walker S1No
Foundation Models
- Unitree R1 Basefalse
- Walker S1false
Imitation Learning
- Unitree R1 BaseNo
- Walker S1No
Programming
- Unitree R1 Basehigh- and low-level programming, simulations (e.g. Isaac SIM)
- Walker S1ROS 2.0
Battery & Power
Runtime
- Unitree R1 Base1 hrs
- Walker S12 hrs
Charging Method
- Unitree R1 Basemanual swap
- Walker S1—
Battery Swap
- Unitree R1 BaseYes
- Walker S1No
Software
SDK Languages
- Unitree R1 Basehigh- and low-level programming, simulations (e.g. Isaac SIM)
- Walker S1Python
ROS Support
- Unitree R1 BaseNo
- Walker S1Yes
Simulation Platforms
- Unitree R1 BaseIsaac SIM
- Walker S1—
Open API
- Unitree R1 BaseNo
- Walker S1Yes
Reliability
Deployment Maturity
- Unitree R1 Baseresearch
- Walker S1commercial
Commercial
Price (USD)
- Unitree R1 Base$4,900–$5,900 USD
- Walker S1$75,000 USD
Price Tier
- Unitree R1 Base80-150K
- Walker S140-80K
Pricing Model
- Unitree R1 Basepurchase
- Walker S1purchase
Delivery Lead Time
- Unitree R1 Base4 mo
- Walker S1—
Warranty
- Unitree R1 Base—
- Walker S12 yrs
Applications
- Unitree R1 Baseresearch, industry, education
- 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) | $4,900–$5,900 USD | $75,000 USD |
| Battery / Shift Runtime (values differ) | 1 hrs | 2 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical Form Factor | ||
| Height (values differ) | 121 mm | 130 mm |
| Weight (values differ) | 25 kg | 76 kg |
| Mobility Type | bipedal | bipedal |
| Humanoid Subtype | full bipedal | full bipedal |
| Walking Speed (values differ) | 2.5 m/s | 0.8 m/s |
| Running Capable (values differ) | run capable | — |
| Stair Climbing (values differ) | No | Yes |
| Terrain (values differ) | indoor | 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 (values differ) | — | 7 |
| Hand DOF (values differ) | — | 6 |
| Arm Reach (values differ) | — | 60 cm |
| Bimanual Coordination (values differ) | No | Yes |
| Compute & AI | ||
| Onboard Compute (values differ) | 100 TOPS | Intel i7 8665U Frequency 1.9Ghz *2, NVIDIA GT1030 graphics card, 384 cores |
| Compute Platform (values differ) | 8-core high-performance CPU | — |
| VLM Capable | No | No |
| Foundation Models | false | false |
| Imitation Learning | No | No |
| Programming (values differ) | high- and low-level programming, simulations (e.g. Isaac SIM) | ROS 2.0 |
| Battery & Power | ||
| Runtime (values differ) | 1 hrs | 2 hrs |
| Charging Method (values differ) | manual swap | — |
| Battery Swap (values differ) | Yes | No |
| Software | ||
| SDK Languages (values differ) | high- and low-level programming, simulations (e.g. Isaac SIM) | Python |
| ROS Support (values differ) | No | Yes |
| Simulation Platforms (values differ) | Isaac SIM | — |
| Open API (values differ) | No | Yes |
| Reliability | ||
| Deployment Maturity (values differ) | research | commercial |
| Commercial | ||
| Price (USD) (values differ) | $4,900–$5,900 USD | $75,000 USD |
| Price Tier (values differ) | 80-150K | 40-80K |
| Pricing Model | purchase | purchase |
| Delivery Lead Time (values differ) | 4 mo | — |
| Warranty (values differ) | — | 2 yrs |
| Applications (values differ) | research, industry, education | service, entertainment, education |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Payload (Peak), Grip Strength, Manipulation Repeatability, Tool Use, Teleoperation, Battery Capacity, Charging Time, Avg Power Consumption, Force-Limited Arms, Fall Recovery, Fall Detection Response, Emergency Stops, Human Detection Method, Safe Speed Near Humans, Air-Gap Capable, MTBF, Task Success Rate, IP Rating, Noise Level, RaaS / Month, Developer Unit Price, 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 | Unitree R1 Base | Walker S1 |
|---|---|---|
| Investment | $5,400 | $75,000 |
| Payback period | 1.3 mo | 18.0 mo |
| Net savings (5 yr) | $244,600 | $175,000 |
| ROI (5 yr) | +4530% | +233% |
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 Unitree R1 Base and Walker S1?
Unitree R1 Base is made by Unitree Robotics, based in CN. Walker S1 is made by UBTECH Robotics Corp Ltd., based in CN.
How do Unitree R1 Base and Walker S1 compare on the Robo Score?
Unitree R1 Base scores 55.7 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.
What is the payload difference between Unitree R1 Base and Walker S1?
Unitree R1 Base carries up to 2 kg. Walker S1 carries up to 10 kg.
Are Unitree R1 Base 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 Unitree R1 Base 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
Unitree R1 Base 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.