Elf 3 Humanoid Robot vs Walker S1
Side-by-side comparison of Elf 3 Humanoid Robot (BXI Robotics) and Walker S1 (UBTECH Robotics Corp Ltd.) — specs, pricing, Robo 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
- Elf 3 Humanoid RobotChina
- Walker S1China
Year First Available
- Elf 3 Humanoid Robot2026
- Walker S12024
Verified Deployments
- Elf 3 Humanoid Robot0 Deployments
- Walker S10 Deployments
Layer 2: Operational
Price
- Elf 3 Humanoid Robot$36,000 USD
- Walker S1$75,000 USD
Battery / Shift Runtime
- Elf 3 Humanoid Robot2 hrs
- Walker S12 hrs
Availability Status
- Elf 3 Humanoid RobotACTIVE
- Walker S1ACTIVE
Physical Form Factor
Height
- Elf 3 Humanoid Robot145 mm
- Walker S1130 mm
Weight
- Elf 3 Humanoid Robot37 kg
- Walker S176 kg
Mobility Type
- Elf 3 Humanoid Robotbipedal
- Walker S1bipedal
Humanoid Subtype
- Elf 3 Humanoid Robotfull bipedal
- Walker S1full bipedal
Walking Speed
- Elf 3 Humanoid Robot1 m/s
- Walker S10.8 m/s
Running Capable
- Elf 3 Humanoid Robotrun capable
- Walker S1—
Stair Climbing
- Elf 3 Humanoid Robotnone
- Walker S1Yes
Terrain
- Elf 3 Humanoid Robotflat_indoor
- Walker S1flat indoor, uneven outdoor, gravel, tile, thick carpet, lawn
Payload & Dexterity
Payload
- Elf 3 Humanoid Robot5 kg
- Walker S110 kg
Payload (Peak)
- Elf 3 Humanoid Robot10 kg
- Walker S1—
Total DOF
- Elf 3 Humanoid Robot41
- Walker S141
Arm DOF
- Elf 3 Humanoid Robot7
- Walker S17
Hand DOF
- Elf 3 Humanoid Robot—
- Walker S16
Arm Reach
- Elf 3 Humanoid Robot48 cm
- Walker S160 cm
Bimanual Coordination
- Elf 3 Humanoid Robotindependent
- Walker S1Yes
Tool Use
- Elf 3 Humanoid Robotnone
- Walker S1—
Compute & AI
Onboard Compute
- Elf 3 Humanoid RobotIntel i7 CPU
- Walker S1Intel i7 8665U Frequency 1.9Ghz *2, NVIDIA GT1030 graphics card, 384 cores
Compute Platform
- Elf 3 Humanoid RobotIntel i7 CPU + optional NVIDIA Jetson
- Walker S1—
VLM Capable
- Elf 3 Humanoid Robotnone
- Walker S1No
Foundation Models
- Elf 3 Humanoid Robot—
- Walker S1false
Imitation Learning
- Elf 3 Humanoid Robotnone
- Walker S1No
Teleoperation
- Elf 3 Humanoid Robotjoystick, web_interface
- Walker S1—
Programming
- Elf 3 Humanoid Robotcode_python
- Walker S1ROS 2.0
Battery & Power
Runtime
- Elf 3 Humanoid Robot2 hrs
- Walker S12 hrs
Battery Capacity
- Elf 3 Humanoid Robot0.5 kWh
- Walker S1—
Charging Time
- Elf 3 Humanoid Robot4 hrs
- Walker S1—
Charging Method
- Elf 3 Humanoid Robotmanual swap
- Walker S1—
Battery Swap
- Elf 3 Humanoid RobotYes
- Walker S1No
Avg Power Consumption
- Elf 3 Humanoid Robot28 W
- Walker S1—
Safety
Force-Limited Arms
- Elf 3 Humanoid RobotYes
- Walker S1—
Fall Recovery
- Elf 3 Humanoid RobotYes
- Walker S1—
Human Detection Method
- Elf 3 Humanoid Robotmulti modal
- Walker S1—
Safe Speed Near Humans
- Elf 3 Humanoid Robotnone
- Walker S1—
Software
SDK Languages
- Elf 3 Humanoid RobotROS1
- Walker S1Python
ROS Support
- Elf 3 Humanoid Robotros1 community
- Walker S1Yes
Simulation Platforms
- Elf 3 Humanoid RobotMuJoCo
- Walker S1—
Open API
- Elf 3 Humanoid Robotopen rest
- Walker S1Yes
Reliability
Deployment Maturity
- Elf 3 Humanoid Robotprototype
- Walker S1commercial
Commercial
Price (USD)
- Elf 3 Humanoid Robot$36,000 USD
- Walker S1$75,000 USD
Price Tier
- Elf 3 Humanoid Robot20-40K
- Walker S140-80K
Pricing Model
- Elf 3 Humanoid Robotcapex
- Walker S1purchase
Delivery Lead Time
- Elf 3 Humanoid Robot1 mo
- Walker S1—
Warranty
- Elf 3 Humanoid Robot1 yrs
- Walker S12 yrs
Applications
- Elf 3 Humanoid Robotresearch
- Walker S1service, entertainment, education
| ||
|---|---|---|
| Layer 1: Identity & Trust | ||
| Manufacturer Country | China | China |
| Year First Available (values differ) | 2026 | 2024 |
| Verified Deployments | 0 Deployments | 0 Deployments |
| Layer 2: Operational | ||
| Price (values differ) | $36,000 USD | $75,000 USD |
| Battery / Shift Runtime (priority for Last-Mile Delivery buyers) | 2 hrs | 2 hrs |
| Availability Status | ACTIVE | ACTIVE |
| Layer 3: Category Specific | ||
| Physical Form Factor | ||
| Height (values differ) | 145 mm | 130 mm |
| Weight (values differ) | 37 kg | 76 kg |
| Mobility Type | bipedal | bipedal |
| Humanoid Subtype | full bipedal | full bipedal |
| Walking Speed (values differ) | 1 m/s | 0.8 m/s |
| Running Capable (values differ) | run capable | — |
| Stair Climbing (values differ) | none | Yes |
| Terrain (values differ) | flat_indoor | flat indoor, uneven outdoor, gravel, tile, thick carpet, lawn |
| Payload & Dexterity | ||
| Payload (values differ) | 5 kg | 10 kg |
| Payload (Peak) (values differ) | 10 kg | — |
| Total DOF | 41 | 41 |
| Arm DOF | 7 | 7 |
| Hand DOF (values differ) | — | 6 |
| Arm Reach (values differ) | 48 cm | 60 cm |
| Bimanual Coordination (values differ) | independent | Yes |
| Tool Use (values differ) | none | — |
| Compute & AI | ||
| Onboard Compute (values differ) | Intel i7 CPU | Intel i7 8665U Frequency 1.9Ghz *2, NVIDIA GT1030 graphics card, 384 cores |
| Compute Platform (values differ) | Intel i7 CPU + optional NVIDIA Jetson | — |
| VLM Capable (values differ) | none | No |
| Foundation Models (values differ) | — | false |
| Imitation Learning (values differ) | none | No |
| Teleoperation (values differ) | joystick, web_interface | — |
| Programming (values differ) | code_python | ROS 2.0 |
| Battery & Power | ||
| Runtime | 2 hrs | 2 hrs |
| Battery Capacity (values differ) | 0.5 kWh | — |
| Charging Time (values differ) | 4 hrs | — |
| Charging Method (values differ) | manual swap | — |
| Battery Swap (values differ) | Yes | No |
| Avg Power Consumption (values differ) | 28 W | — |
| 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) | none | — |
| Software | ||
| SDK Languages (values differ) | ROS1 | Python |
| ROS Support (values differ) | ros1 community | Yes |
| Simulation Platforms (values differ) | MuJoCo | — |
| Open API (values differ) | open rest | Yes |
| Reliability | ||
| Deployment Maturity (values differ) | prototype | commercial |
| Commercial | ||
| Price (USD) (values differ) | $36,000 USD | $75,000 USD |
| Price Tier (values differ) | 20-40K | 40-80K |
| Pricing Model (values differ) | capex | purchase |
| Delivery Lead Time (values differ) | 1 mo | — |
| Warranty (values differ) | 1 yrs | 2 yrs |
| Applications (values differ) | research | service, entertainment, education |
Insufficient data for full comparison
The following fields had no data for any of the selected robots: Grip Strength, Manipulation Repeatability, Fall Detection Response, Emergency Stops, 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 | Elf 3 Humanoid Robot | Walker S1 |
|---|---|---|
| Investment | $36,000 | $75,000 |
| Payback period | 8.6 mo | 18.0 mo |
| Net savings (5 yr) | $214,000 | $175,000 |
| ROI (5 yr) | +594% | +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 Elf 3 Humanoid Robot and Walker S1?
Elf 3 Humanoid Robot is made by BXI Robotics, based in CN. Walker S1 is made by UBTECH Robotics Corp Ltd., based in CN.
When were Elf 3 Humanoid Robot and Walker S1 launched?
Elf 3 Humanoid Robot launched in 2026. Walker S1 launched in 2024.
How much does Elf 3 Humanoid Robot cost compared to Walker S1?
Elf 3 Humanoid Robot is listed at $36,000. Walker S1 is listed at $75,000.
How do Elf 3 Humanoid Robot and Walker S1 compare on the Robo Score?
Elf 3 Humanoid Robot scores 55.9 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 Elf 3 Humanoid Robot and Walker S1?
Elf 3 Humanoid Robot carries up to 5 kg. Walker S1 carries up to 10 kg.
Are Elf 3 Humanoid Robot 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 Elf 3 Humanoid Robot 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
Elf 3 Humanoid Robot 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.