PR2 vs Sanbot S1
Side-by-side comparison of PR2 (Willow Garage) and Sanbot S1 (Sanbot Innovation Technology) — specs, pricing, Robo Index, and verified deployments. Updated daily.
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Layer 1: Identity & Trust
Manufacturer Country
- PR2United States
- Sanbot S1China
Year First Available
- PR22010
- Sanbot S1—
Verified Deployments
- PR20 Deployments
- Sanbot S10 Deployments
Layer 2: Operational
Price Range (USD)
- PR2$400,000 USD
- Sanbot S1$11,000 USD
Battery / Shift Runtime
- PR22 hrs
- Sanbot S118 hrs
Availability Status
- PR2ACTIVE
- Sanbot S1ACTIVE
Physical Form Factor
Height
- PR2164.5 mm
- Sanbot S1848.32 mm
Weight
- PR2200 kg
- Sanbot S1100 kg
Mobility Type
- PR2bipedal
- Sanbot S1static
Humanoid Subtype
- PR2full bipedal
- Sanbot S1service humanoid
Walking Speed
- PR21 m/s
- Sanbot S15 m/s
Stair Climbing
- PR2—
- Sanbot S1No
Terrain
- PR2flat indoor
- Sanbot S1home
Payload & Dexterity
Payload
- PR21.8 kg
- Sanbot S175 kg
Total DOF
- PR232
- Sanbot S127
Arm DOF
- PR27
- Sanbot S110
Hand DOF
- PR21
- Sanbot S11x2(L/R) DOF
Bimanual Coordination
- PR2Yes
- Sanbot S1No
Compute & AI
Onboard Compute
- PR2Two 8-core computers with a combined 48 GB of RAM
- Sanbot S1—
VLM Capable
- PR2No
- Sanbot S1No
Foundation Models
- PR2—
- Sanbot S1false
Imitation Learning
- PR2No
- Sanbot S1No
Programming
- PR2code_ros
- Sanbot S1Amazon Alexa
Battery & Power
Runtime
- PR22 hrs
- Sanbot S118 hrs
Battery Capacity
- PR21.3 kWh
- Sanbot S1—
Battery Swap
- PR2No
- Sanbot S1No
Software
SDK Languages
- PR2Python
- Sanbot S1none
ROS Support
- PR2ros1 community
- Sanbot S1No
Open API
- PR2open rest
- Sanbot S1No
Air-Gap Capable
- PR2Yes
- Sanbot S1—
Reliability
Deployment Maturity
- PR2research
- Sanbot S1commercial
Commercial
Price (USD)
- PR2$400,000 USD
- Sanbot S1$11,000 USD
Price Tier
- PR2<10K
- Sanbot S1—
Applications
- PR2research
- Sanbot S1healthcare, education, hospitality, public_service
| | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | United States | China |
| Year First Available (values differ) | 2010 | — |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price Range (USD) (values differ) | $400,000 USD | $11,000 USD |
| Battery / Shift Runtime (values differ) | 2 hrs | 18 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical Form Factor | ||
| Height (values differ) | 164.5 mm | 848.32 mm |
| Weight (values differ) | 200 kg | 100 kg |
| Mobility Type (values differ) | bipedal | static |
| Humanoid Subtype (values differ) | full bipedal | service humanoid |
| Walking Speed (values differ) | 1 m/s | 5 m/s |
| Stair Climbing (values differ) | — | No |
| Terrain (values differ) | flat indoor | home |
| Payload & Dexterity | ||
| Payload (values differ) | 1.8 kg | 75 kg |
| Total DOF (values differ) | 32 | 27 |
| Arm DOF (values differ) | 7 | 10 |
| Hand DOF (values differ) | 1 | 1x2(L/R) DOF |
| Bimanual Coordination (values differ) | Yes | No |
| Compute & AI | ||
| Onboard Compute (values differ) | Two 8-core computers with a combined 48 GB of RAM | — |
| VLM Capable | No | No |
| Foundation Models (values differ) | — | false |
| Imitation Learning | No | No |
| Programming (values differ) | code_ros | Amazon Alexa |
| Battery & Power | ||
| Runtime (values differ) | 2 hrs | 18 hrs |
| Battery Capacity (values differ) | 1.3 kWh | — |
| Battery Swap | No | No |
| Software | ||
| SDK Languages (values differ) | Python | none |
| ROS Support (values differ) | ros1 community | No |
| Open API (values differ) | open rest | No |
| Air-Gap Capable (values differ) | Yes | — |
| Reliability | ||
| Deployment Maturity (values differ) | research | commercial |
| Commercial | ||
| Price (USD) (values differ) | $400,000 USD | $11,000 USD |
| Price Tier (values differ) | <10K | — |
| Applications (values differ) | research | healthcare, education, hospitality, public_service |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Running Capable, Payload (Peak), Arm Reach, Grip Strength, Manipulation Repeatability, Tool Use, Compute Platform, Teleoperation, 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, MTBF, Task Success Rate, IP Rating, Noise Level, RaaS / Month, Pricing Model, Developer Unit Price, Delivery Lead Time, Warranty, Production Pilots
best in categoryweakest in categoryvalues differ
Trade-offs at a glance
Frequently asked
Who makes PR2 and Sanbot S1?
PR2 is made by Willow Garage, based in US. Sanbot S1 is made by Sanbot Innovation Technology, based in CN.
How much does PR2 cost compared to Sanbot S1?
PR2 is listed at $400,000. Sanbot S1 is listed at $11,000.
How do PR2 and Sanbot S1 compare on the Robo Index?
PR2 scores 99/100. Sanbot S1 scores 83/100. The Robo Index blends specs, pricing transparency, verified deployments, and independent media coverage — see methodology for the full breakdown.
What is the payload difference between PR2 and Sanbot S1?
PR2 carries up to 1.8 kg. Sanbot S1 carries up to 75 kg.
Are PR2 and Sanbot 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 PR2 and Sanbot 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
PR2 vs Sanbot 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 Index is calculated.