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UBTECH RoboticsChina2025

Walker S2

  • Over 40 kgOver 88 lb
  • Industry

Key figures as stated by the manufacturer

2 of 6 stated · 4 gaps
  • Weight ⁠A 70kg154lbOur conversion from 70 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
  • Payload, walking not stated
  • Runtime not stated
  • Max speed ⁠A 7.2km/h4.47mphOur conversion from 7.2 km/h. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.
  • AI model not stated
  • Indicative price not stated
How to read the figures
14kgA30.9lbA
The letter in the grey square after a figure points to the source the figure came from. Robots with several sources carry several letters.
Payload, walking
A stroke before a field name means the figure carries a caveat that affects how it compares with other robots. The caveat is printed with the figure.
74.5lb
Imperial figures are our own conversion unless the manufacturer states an imperial figure itself. The source letter always belongs to the metric figure — a conversion has no source of its own.
Deviations and variants in the key figures (3)

Weight

Note Stated in the "Full Size" panel of the page.

Payload, walking

Caveat The page gives 15 kg as a lifting load for the waist and squat movements and 7.5 kg for a single-hand grasp. Those are movement-specific figures, not a figure for what the whole robot carries.

Max speed

Note Listed with the walking gait in the "Full Size" panel of the page.

UBTECH Walker S2, silver and black bipedal humanoid robot, standing, seen at an angle from the front, manufacturer product image

Manufacturer's own photo.

Intended use, per the manufacturer

The manufacturer’s words

UBTECH New Generation of Industrial Humanoid Robot

Source: ubtrobot.com · Retrieved

This category is not our assessment.

Full specifications

7 of 33 fields stated
The letter points to the source at the foot of the page. Fields without a figure are dashed: the manufacturer does not state them — that is not the same as zero, and not the same as no.
Field Value Source and caveats
Physical
Weight70kg154lbOur conversion from 70 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.

Note Stated in the "Full Size" panel of the page. ⁠A

Lengthnot stated
Widthnot stated
Height176cm69.3inOur conversion from 176 cm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.

Caveat Stated in the "Full Size" panel of the page; the page does not say in which posture the robot is measured. ⁠A

Degrees of freedom52DoF

Note Stated in the "Full Size" panel of the page. The same panel gives 11 DoF for the Gen-4 dexterous hands. ⁠A

Payload, walkingnot stated

Caveat The page gives 15 kg as a lifting load for the waist and squat movements and 7.5 kg for a single-hand grasp. Those are movement-specific figures, not a figure for what the whole robot carries. ⁠A

Payload, standingnot stated

Caveat The page gives 15 kg as a lifting load for the waist and squat movements and 7.5 kg for a single-hand grasp. Those are movement-specific figures, not a figure for what the whole robot carries. ⁠A

Max speed7.2km/h4.47mphOur conversion from 7.2 km/h. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.

Note Listed with the walking gait in the "Full Size" panel of the page. ⁠A

Max slopenot stated
Single obstaclenot stated
Stair step, continuousnot stated
IP ratingnot stated
Operating temperature, lownot stated
Operating temperature, highnot stated
Power
Batterynot stated
Runtimenot stated
Hot-swap batteryyes

Note The robot swaps its own battery at a battery swap station within 3 minutes. ⁠A

Charge timenot stated
Docking stationnot stated

Note The page describes battery swap stations and a fast charging port; it does not describe a charging dock. ⁠A

Sensing and autonomy
LiDARnot stated

Note The page names RGB and RGBD cameras and no LiDAR. ⁠A

CamerasTwo fish-eye cameras, two RGB cameras and two RGBD cameras.

Note Labelled photograph of the front and back of the robot in the specification section. ⁠A

Onboard computenot stated
ROS 2not stated
SDK languagesnot stated
Autonomy levelnot stated

Note The page describes "BrainNet 2.0" and industrial Co-Agents and names no autonomy level. ⁠A

Payload and expansion
Mounting interfacenot stated
Power outnot stated
Data portsGigabit Ethernet USB 3.0

Note Back-panel label in the specification section. ⁠A

Commercial
Indicative pricenot stated
EU
CE statednot stated

Records only what the manufacturer states regarding CE marking.

FCC statednot stated
UL statednot stated
CCC statednot stated

Notes

  • The page title reads "Autonomous Battery Swapping for Mass Production Delivery". The page carries a "Contact Us" form and shows no price.
  • Walker S2 swaps its own battery at a battery swap station within 3 minutes, using a dual-battery design.
  • CnEVPost reported on 17 July 2025 that UBTech announced its new-generation industrial humanoid Walker S2 with battery swap.

The manufacturer’s own page

The manufacturer’s original product page for this model.

Open the manufacturer’s page for Walker S2

https://www.ubtrobot.com/en/humanoid/products/walker-s2

See every model from UBTECH Robotics

Sources

One line per source, not per figure: a source has one retrieval date. The letter beside a figure points to the line it came from.