humanoidrobots.systems

Engineered Ameca vs UBTech Walker S (S1 / S2)

Generated from the registry · revision 2026-09-26 · openness out of 100

No height, mass, DOF or payload figure is sourced for both Ameca and UBTech Walker S (S1 / S2) yet. Both score 0/100 on openness. Availability for both: buy.

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Side by side

■ rows differ
Side-by-side specifications. Rows marked with a square differ.
FieldEngineered ArtsEngineered AmecaUBTech RoboticsUBTech Walker S (S1 / S2)Δ first − second
Identity
Maker (differs)Engineered ArtsUBTech Robotics
ClassHumanoidHumanoid
StatusActiveActive
AvailabilityBuyBuy
Country (differs)United KingdomChina
Year (differs)20212023
Specifications
Height187cm—unsourced
Mass62kg—unsourced
Degrees of freedom61—unsourced
Payload—unsourced15kg
Top speed—unsourced—unsourced
Runtime—unsourced—unsourced
Battery capacity—unsourced—unsourced
Price—unsourced—unsourced
Actuators (differs)Electric; 27 DOF head/face, 34 DOF upper bodyServo joints with force feedback
Compute (differs)Embedded robot PC; Tritium robotOS (Linux/Yocto)BrainNet 2.0 + Co-Agent (UBTech software)
Sensors (differs)2x 8MP eye cameras, binaural mics, 4-ch chest mic, LiDAR safety sensorsRGB binocular stereo vision (S2)
Openness and provenance
Openness bar00
Openness score0/ 1000/ 100=
CAD (25)not publicnot public
Bill of materials (20)not publicnot public
Sim model (URDF/MJCF) (20)not publicnot public
Firmware (15)not publicnot public
Software (10)not publicnot public
Trained policies (10)not publicnot public
Verification levelL0L0
Sources (differs)23
Last checked2026-09-242026-09-24

A dash is an unsourced figure, not zero. Sources for each robot are listed on its spec sheet: Ameca, UBTech Walker S (S1 / S2).

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