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UBTECH Walker S1
UBTECH Robotics

UBTECH Walker S1

Prototype
77
Undisclosed
Tesla Optimus Gen 2
Tesla

Tesla Optimus Gen 2

Prototype
85
$20,000
🏆
Tesla Optimus Gen 2 comes out ahead
Wins 4 of 5 decisive categories — leads on overall score, payload, top speed.
1
UBTECH
4
Tesla
Overall score
77/100
85/100
Payload
15 kg
20 kg
Top speed
0.83 m/s
2.22 m/s
Degrees of freedom
41
28
Hand dexterity (DoF)
11
Battery
2300 Wh
Runtime
120 min
Height
172 cm
173 cm
Weight
76 kg
57 kg

Choose UBTECH Walker S1 if you want…

  • Better degrees of freedom
  • Industrial humanoid undergoing trials on automotive production lines, with multimodal perception and coordinated multi-robot operation.

Choose Tesla Optimus Gen 2 if you want…

  • Better overall score
  • Better payload
  • Better top speed
  • Better weight
  • Tesla second-generation humanoid with in-house actuators, 11-DoF hands and tactile fingertips, targeting low-cost mass production.

Key facts

Undisclosed
Price
$20,000
Prototype
Status
Prototype
2024
Released
2023
UBTECH Robotics
Brand
Tesla
Electric
Actuation
Electric

Full specifications

Overview
UBTECH Robotics (China)
Manufacturer
Tesla
Industrial humanoid, multi-task factory
Class
Factory trials; mass production 2025
Status
Prototype / internal factory use
Generation
Gen 2 (Dec 2023)
Body
172 cm
Height
173 cm
76 kg
Weight
57 kg
41
Total DoF
Up to 15 per arm kg
Payload
20 kg
Weight saving
10 kg lighter than Gen 1
Locomotion
~3 km/h (~0.83 m/s)
Walking speed
Autonomous navigation, stair climbing
Mobility
6-axis IMU + foot force sensors
Balance
Walk speed
8 km/h (~30% faster than Gen 1)
Actuation
41 servo joints w/ force feedback
Joints
6/leg, 7/arm, 5+/hand, 3 torso, 2 neck
Joint layout
Actuators
Tesla-designed actuators
Neck
2-DoF actuated
Manipulation
Five-fingered dexterous
Hands
Redesigned 11-DoF, faster
Assembly, material handling, inspection
Tasks
Hand DoF
11 DoF
Sensors
RGB-D / multiple depth cameras
Vision
Semantic VSLAM, multimodal
Perception
6-axis IMU, force-torque sensors
Inertial/force
Tactile
Tesla sensors on all fingers
AI & Software
Embodied AI; large-model task planning
Intelligence
Autonomous navigation; swarm collaboration
Autonomy
Zeekr, Nio, BYD, Audi-FAW, Foxconn, SF Express
Deployment
Control
Improved balance & full-body control
Power
~2 hours
Runtime
Battery
2.3 kWh
Battery location
Torso-integrated pack
Full UBTECH Walker S1 review → Full Tesla Optimus Gen 2 review →
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