Unitree G1 Basic vs Walker S1
Side-by-side comparison of Unitree G1 Basic (Unitree Robotics) and Walker S1 (UBTECH Robotics Corp Ltd.) — specs, pricing, Robo Score, 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
- Unitree G1 BasicChina
- Walker S1China
Year First Available
- Unitree G1 Basic—
- Walker S12024
Verified Deployments
- Unitree G1 Basic0 Deployments
- Walker S10 Deployments
Layer 2: Operational
Price
- Unitree G1 Basic$13,500–$17,900 USD
- Walker S1$75,000 USD
Battery / Shift Runtime
- Unitree G1 Basic2 hrs
- Walker S12 hrs
Availability Status
- Unitree G1 BasicACTIVE
- Walker S1ACTIVE
Physical Form Factor
Height
- Unitree G1 Basic127 mm
- Walker S1130 mm
Weight
- Unitree G1 Basic35 kg
- Walker S176 kg
Mobility Type
- Unitree G1 Basicbipedal
- Walker S1bipedal
Humanoid Subtype
- Unitree G1 Basicfull bipedal
- Walker S1full bipedal
Walking Speed
- Unitree G1 Basic—
- Walker S10.8 m/s
Stair Climbing
- Unitree G1 BasicNo
- Walker S1Yes
Terrain
- Unitree G1 Basicresearch, educational
- Walker S1flat indoor, uneven outdoor, gravel, tile, thick carpet, lawn
Payload & Dexterity
Payload
- Unitree G1 Basic2 kg
- Walker S110 kg
Total DOF
- Unitree G1 Basic43
- Walker S141
Arm DOF
- Unitree G1 Basic5
- Walker S17
Hand DOF
- Unitree G1 Basic7
- Walker S16
Arm Reach
- Unitree G1 Basic—
- Walker S160 cm
Bimanual Coordination
- Unitree G1 BasicNo
- Walker S1Yes
Compute & AI
Onboard Compute
- Unitree G1 Basic48V lithium battery
- Walker S1Intel i7 8665U Frequency 1.9Ghz *2, NVIDIA GT1030 graphics card, 384 cores
VLM Capable
- Unitree G1 BasicNo
- Walker S1No
Foundation Models
- Unitree G1 Basicfalse
- Walker S1false
Imitation Learning
- Unitree G1 BasicNo
- Walker S1No
Programming
- Unitree G1 BasicROS, Python, C++
- Walker S1ROS 2.0
Battery & Power
Runtime
- Unitree G1 Basic2 hrs
- Walker S12 hrs
Battery Swap
- Unitree G1 BasicNo
- Walker S1No
Software
SDK Languages
- Unitree G1 BasicPython, C++
- Walker S1Python
ROS Support
- Unitree G1 BasicYes
- Walker S1Yes
Open API
- Unitree G1 BasicYes
- Walker S1Yes
Reliability
Deployment Maturity
- Unitree G1 Basicresearch
- Walker S1commercial
Commercial
Price (USD)
- Unitree G1 Basic$13,500–$17,900 USD
- Walker S1$75,000 USD
Price Tier
- Unitree G1 Basic150K+
- Walker S140-80K
Pricing Model
- Unitree G1 Basicpurchase
- Walker S1purchase
Warranty
- Unitree G1 Basic0.7 yrs
- Walker S12 yrs
Applications
- Unitree G1 Basicresearch, teleoperation
- 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) | $13,500–$17,900 USD | $75,000 USD |
| Battery / Shift Runtime | 2 hrs | 2 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical Form Factor | ||
| Height (values differ) | 127 mm | 130 mm |
| Weight (values differ) | 35 kg | 76 kg |
| Mobility Type | bipedal | bipedal |
| Humanoid Subtype | full bipedal | full bipedal |
| Walking Speed (values differ) | — | 0.8 m/s |
| Stair Climbing (values differ) | No | Yes |
| Terrain (values differ) | research, educational | flat indoor, uneven outdoor, gravel, tile, thick carpet, lawn |
| Payload & Dexterity | ||
| Payload (values differ) | 2 kg | 10 kg |
| Total DOF (values differ) | 43 | 41 |
| Arm DOF (values differ) | 5 | 7 |
| Hand DOF (values differ) | 7 | 6 |
| Arm Reach (values differ) | — | 60 cm |
| Bimanual Coordination (values differ) | No | Yes |
| Compute & AI | ||
| Onboard Compute (values differ) | 48V lithium battery | 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) | ROS, Python, C++ | ROS 2.0 |
| Battery & Power | ||
| Runtime | 2 hrs | 2 hrs |
| Battery Swap | No | No |
| Software | ||
| SDK Languages (values differ) | Python, C++ | Python |
| ROS Support | Yes | Yes |
| Open API | Yes | Yes |
| Reliability | ||
| Deployment Maturity (values differ) | research | commercial |
| Commercial | ||
| Price (USD) (values differ) | $13,500–$17,900 USD | $75,000 USD |
| Price Tier (values differ) | 150K+ | 40-80K |
| Pricing Model | purchase | purchase |
| Warranty (values differ) | 0.7 yrs | 2 yrs |
| Applications (values differ) | research, teleoperation | 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 | Unitree G1 Basic | Walker S1 |
|---|---|---|
| Investment | $15,700 | $75,000 |
| Payback period | 3.8 mo | 18.0 mo |
| Net savings (5 yr) | $234,300 | $175,000 |
| ROI (5 yr) | +1492% | +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 G1 Basic and Walker S1?
Unitree G1 Basic is made by Unitree Robotics, based in CN. Walker S1 is made by UBTECH Robotics Corp Ltd., based in CN.
How do Unitree G1 Basic and Walker S1 compare on the Robo Score?
Unitree G1 Basic 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 G1 Basic and Walker S1?
Unitree G1 Basic carries up to 2 kg. Walker S1 carries up to 10 kg.
Are Unitree G1 Basic 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 G1 Basic 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 G1 Basic 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.