P1 Biped vs Walker S1

Side-by-side comparison of P1 Biped (LimX Dynamics Technology Co., Ltd) and Walker S1 (UBTECH Robotics Corp Ltd.) — specs, pricing, Robo Score, and verified deployments. Updated daily.

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Optimized for Hospitality & F&B buyers. Priority specs lifted to the top and marked with a target.

P1 Biped45.6

Walker S169.6

Layer 1: Identity & Trust

Manufacturer Country

P1 BipedChina
Walker S1China

Year First Available

P1 Biped2024
Walker S12024

Verified Deployments

P1 Biped0 Deployments
Walker S10 Deployments

Layer 2: Operational

Price

P1 BipedResearch platform
Walker S1$75,000 USD

Battery / Shift Runtime

P1 Biped2 hrs
Walker S12 hrs

Availability Status

P1 BipedACTIVE
Walker S1ACTIVE

Physical Form Factor

Weight

P1 Biped20 kg
Walker S176 kg

Height

P1 Biped78 mm
Walker S1130 mm

Mobility Type

P1 Bipedbipedal
Walker S1bipedal

Humanoid Subtype

P1 Bipedfull bipedal
Walker S1full bipedal

Walking Speed

P1 Biped0.5 m/s
Walker S10.8 m/s

Stair Climbing

P1 Biped—
Walker S1Yes

Terrain

P1 Bipedrough_indoor, outdoor_unstructured
Walker S1flat indoor, uneven outdoor, gravel, tile, thick carpet, lawn

Payload & Dexterity

Payload

P1 Biped15 kg
Walker S110 kg

Total DOF

P1 Biped—
Walker S141

Arm DOF

P1 Biped—
Walker S17

Hand DOF

P1 Biped—
Walker S16

Arm Reach

P1 Biped—
Walker S160 cm

Bimanual Coordination

P1 Biped—
Walker S1Yes

Compute & AI

Onboard Compute

P1 Biped11th Gen i7/16GB/512GB Wi-Fi6
Walker S1Intel i7 8665U Frequency 1.9Ghz *2, NVIDIA GT1030 graphics card, 384 cores

Compute Platform

P1 BipedIntel Core embedded computer
Walker S1—

VLM Capable

P1 Biped—
Walker S1No

Foundation Models

P1 Biped—
Walker S1false

Imitation Learning

P1 Biped—
Walker S1No

Programming

P1 Biped—
Walker S1ROS 2.0

Battery & Power

Runtime

P1 Biped2 hrs
Walker S12 hrs

Charging Method

P1 Bipedmanual swap
Walker S1—

Battery Swap

P1 BipedYes
Walker S1No

Software

SDK Languages

P1 Biped—
Walker S1Python

ROS Support

P1 Biped—
Walker S1Yes

Simulation Platforms

P1 BipedGazebo, MuJoCo, Isaac Gym
Walker S1—

Open API

P1 Biped—
Walker S1Yes

Reliability

Deployment Maturity

P1 Bipedprototype
Walker S1commercial

Commercial

Price (USD)

P1 BipedResearch platform
Walker S1$75,000 USD

Price Tier

P1 Biped—
Walker S140-80K

Pricing Model

P1 Biped—
Walker S1purchase

Warranty

P1 Biped—
Walker S12 yrs

Applications

P1 Bipedresearch
Walker S1service, entertainment, education

	P1 BipedhumanoidLimX Dynamics Technology Co., Ltd 45.6Robo Score	Walker S1humanoidUBTECH Robotics Corp Ltd. 69.6Robo Score
Layer 1: Identity & Trust
Manufacturer Country	China	China
Year First Available	2024	2024
Verified Deployments	0 Deployments	0 Deployments
Layer 2: Operational
Price (values differ)	Research platform	$75,000 USD
Battery / Shift Runtime (priority for Hospitality & F&B buyers)	2 hrs	2 hrs
Availability Status	ACTIVE	ACTIVE
Layer 3: Category Specific
Physical Form Factor
Weight (priority for Hospitality & F&B buyers) (values differ)	20 kg	76 kg
Height (values differ)	78 mm	130 mm
Mobility Type	bipedal	bipedal
Humanoid Subtype	full bipedal	full bipedal
Walking Speed (values differ)	0.5 m/s	0.8 m/s
Stair Climbing (values differ)	—	Yes
Terrain (values differ)	rough_indoor, outdoor_unstructured	flat indoor, uneven outdoor, gravel, tile, thick carpet, lawn
Payload & Dexterity
Payload (values differ)	15 kg	10 kg
Total DOF (values differ)	—	41
Arm DOF (values differ)	—	7
Hand DOF (values differ)	—	6
Arm Reach (values differ)	—	60 cm
Bimanual Coordination (values differ)	—	Yes
Compute & AI
Onboard Compute (values differ)	11th Gen i7/16GB/512GB Wi-Fi6	Intel i7 8665U Frequency 1.9Ghz *2, NVIDIA GT1030 graphics card, 384 cores
Compute Platform (values differ)	Intel Core embedded computer	—
VLM Capable (values differ)	—	No
Foundation Models (values differ)	—	false
Imitation Learning (values differ)	—	No
Programming (values differ)	—	ROS 2.0
Battery & Power
Runtime	2 hrs	2 hrs
Charging Method (values differ)	manual swap	—
Battery Swap (values differ)	Yes	No
Software
SDK Languages (values differ)	—	Python
ROS Support (values differ)	—	Yes
Simulation Platforms (values differ)	Gazebo, MuJoCo, Isaac Gym	—
Open API (values differ)	—	Yes
Reliability
Deployment Maturity (values differ)	prototype	commercial
Commercial
Price (USD) (values differ)	Research platform	$75,000 USD
Price Tier (values differ)	—	40-80K
Pricing Model (values differ)	—	purchase
Warranty (values differ)	—	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: Running Capable, 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, Delivery Lead Time, Production Pilots

best in categoryweakest in categoryvalues differ

ROI Comparison

Same operating assumptions across every robot — the only difference is price. Set your numbers once to see which pays back fastest.

Robots (fleet)

Hours / day

Labor $/hr (USD)

Days / year

Annual labor displaced (per robot): $50,000

Metric	P1 Biped	Walker S1
Investment	No price	$75,000
Payback period	—	18.0 mo
Net savings (5 yr)	—	$175,000
ROI (5 yr)	—	+233%

P1 Biped has no listed price, so payback can't be computed. Contact the manufacturer for a quote.

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 P1 Biped and Walker S1?

P1 Biped is made by LimX Dynamics Technology Co., Ltd, based in CN. Walker S1 is made by UBTECH Robotics Corp Ltd., based in CN.

When were P1 Biped and Walker S1 launched?

P1 Biped launched in 2024. Walker S1 launched in 2024.

How do P1 Biped and Walker S1 compare on the Robo Score?

P1 Biped scores 45.6 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 P1 Biped and Walker S1?

P1 Biped carries up to 15 kg. Walker S1 carries up to 10 kg.

Are P1 Biped 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 P1 Biped 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

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About this comparison

P1 Biped 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.