Justin vs UBTECH Walker S1
Side-by-side comparison of Justin (Unknown) and UBTECH Walker S1 (UBTECH Robotics Corp Ltd.) — specs, pricing, Robolist Trust Score, and verified deployments. Updated daily.
Optimize comparison for buyer
Optimized for Last-Mile Delivery buyers. Priority specs lifted to the top and marked with a target.
Layer 1: Identity & Trust
Manufacturer Country
Justin—
UBTECH Walker S1CN
Year First Available
- Justin2008
- UBTECH Walker S1—
Verified Deployments
- Justin0 Deployments
- UBTECH Walker S10 Deployments
Layer 2: Operational
Price Range (USD)
- Justin$45
- UBTECH Walker S1$75,000
Battery / Shift Runtime
- Justin1 hrs
- UBTECH Walker S12 hrs
Availability Status
- JustinACTIVE
- UBTECH Walker S1ACTIVE
Physical Form Factor
Height
- Justin1910 mm
- UBTECH Walker S1172 mm
Weight
- Justin200 kg
- UBTECH Walker S176 kg
Mobility Type
- Justin—
- UBTECH Walker S1bipedal
Humanoid Subtype
- Justinnull
- UBTECH Walker S1full bipedal
Walking Speed
- Justin2 m/s
- UBTECH Walker S10.8 m/s
Running Capable
- Justin—
- UBTECH Walker S1dynamic walk
Terrain
- Justinboth
- UBTECH Walker S1flat_indoor
Payload & Dexterity
Payload
- Justin20 kg
- UBTECH Walker S115 kg
Total DOF
- Justin51
- UBTECH Walker S141
Arm DOF
- Justin7
- UBTECH Walker S1—
Hand DOF
- Justin12
- UBTECH Walker S1—
Bimanual Coordination
- Justin—
- UBTECH Walker S1full bimanual
Tool Use
- Justin—
- UBTECH Walker S1production validated
Compute & AI
VLM Capable
- Justin—
- UBTECH Walker S1onboard small
Foundation Models
- Justin—
- UBTECH Walker S1RT-X
Imitation Learning
- Justin—
- UBTECH Walker S1multi task
Programming
- Justin—
- UBTECH Walker S1ROS 2.0
Battery & Power
Runtime
- Justin1 hrs
- UBTECH Walker S12 hrs
Safety
Force-Limited Arms
- Justin—
- UBTECH Walker S1Yes
Fall Recovery
- Justin—
- UBTECH Walker S1Yes
Human Detection Method
- Justin—
- UBTECH Walker S1multi modal
Safe Speed Near Humans
- Justin—
- UBTECH Walker S1ssm_equivalent
Software
SDK Languages
- Justin—
- UBTECH Walker S1Python, C++
ROS Support
- Justin—
- UBTECH Walker S1ros2 vendor
Simulation Platforms
- Justin—
- UBTECH Walker S1NVIDIA Isaac Sim
Open API
- Justin—
- UBTECH Walker S1open rest
Air-Gap Capable
- Justin—
- UBTECH Walker S1Yes
Reliability
Deployment Maturity
- Justin—
- UBTECH Walker S1production pilot
Commercial
Price (USD)
- Justin$45
- UBTECH Walker S1$75,000
Price Tier
- Justin<10K
- UBTECH Walker S140-80K
Pricing Model
- Justin—
- UBTECH Walker S1purchase
Delivery Lead Time
- Justin—
- UBTECH Walker S12 mo
Production Pilots
- Justin—
- UBTECH Walker S1BMW Spartanburg, Mercedes-Benz
Applications
- Justinhousehold_work, assisting_astronauts
- UBTECH Walker S1service, entertainment, education
| JustinhumanoidUnknown 46.5Trust Score | UBTECH Walker S1humanoidUBTECH Robotics Corp Ltd. 54.9Trust Score | |
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country (values differ) | — | CN |
| Year First Available (values differ) | 2008 | — |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price Range (USD) (values differ) | $45 | $75,000 |
| Battery / Shift Runtime (priority for Last-Mile Delivery buyers) (values differ) | 1 hrs | 2 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical Form Factor | ||
| Height (values differ) | 1910 mm | 172 mm |
| Weight (values differ) | 200 kg | 76 kg |
| Mobility Type (values differ) | — | bipedal |
| Humanoid Subtype (values differ) | null | full bipedal |
| Walking Speed (values differ) | 2 m/s | 0.8 m/s |
| Running Capable (values differ) | — | dynamic walk |
| Terrain (values differ) | both | flat_indoor |
| Payload & Dexterity | ||
| Payload (values differ) | 20 kg | 15 kg |
| Total DOF (values differ) | 51 | 41 |
| Arm DOF (values differ) | 7 | — |
| Hand DOF (values differ) | 12 | — |
| Bimanual Coordination (values differ) | — | full bimanual |
| Tool Use (values differ) | — | production validated |
| Compute & AI | ||
| VLM Capable (values differ) | — | onboard small |
| Foundation Models (values differ) | — | RT-X |
| Imitation Learning (values differ) | — | multi task |
| Programming (values differ) | — | ROS 2.0 |
| Battery & Power | ||
| Runtime (values differ) | 1 hrs | 2 hrs |
| Safety | ||
| Force-Limited Arms (values differ) | — | Yes |
| Fall Recovery (values differ) | — | Yes |
| Human Detection Method (values differ) | — | multi modal |
| Safe Speed Near Humans (values differ) | — | ssm_equivalent |
| Software | ||
| SDK Languages (values differ) | — | Python, C++ |
| ROS Support (values differ) | — | ros2 vendor |
| Simulation Platforms (values differ) | — | NVIDIA Isaac Sim |
| Open API (values differ) | — | open rest |
| Air-Gap Capable (values differ) | — | Yes |
| Reliability | ||
| Deployment Maturity (values differ) | — | production pilot |
| Commercial | ||
| Price (USD) (values differ) | $45 | $75,000 |
| Price Tier (values differ) | <10K | 40-80K |
| Pricing Model (values differ) | — | purchase |
| Delivery Lead Time (values differ) | — | 2 mo |
| Production Pilots (values differ) | — | BMW Spartanburg, Mercedes-Benz |
| Applications (values differ) | household_work, assisting_astronauts | service, entertainment, education |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Stair Climbing, Payload (Peak), Arm Reach, Grip Strength, Manipulation Repeatability, Onboard Compute, Compute Platform, Teleoperation, Battery Capacity, Charging Time, Charging Method, Battery Swap, Avg Power Consumption, Fall Detection Response, Emergency Stops, MTBF, Task Success Rate, IP Rating, Noise Level, RaaS / Month, Developer Unit Price, Warranty
About this comparison
Justin vs UBTECH 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 Robolist Trust Score is calculated.