humanoidrobots.systems

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Pick two to four robots. Every pair also has its own permanent page, 1,326 in total, generated from the same records.

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ROBOTIS OP3 vs Unitree G1

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ROBOTIS OP3 is 81 cm shorter (51 vs 132 cm) and 31.5 kg lighter (3.5 vs 35 kg) than Unitree G1. ROBOTIS OP3 has 3 fewer degrees of freedom (20 vs 23) than Unitree G1. Openness score: ROBOTIS OP3 45, Unitree G1 40 (of 100); only ROBOTIS OP3 publishes FW; only Unitree G1 publishes POL. Availability for both: buy.

Side-by-side specifications. Rows marked with a square differ.
FieldROBOTISROBOTIS OP3Unitree RoboticsUnitree G1Δ first − second
Identity
Maker (differs)ROBOTISUnitree Robotics
ClassHumanoidHumanoid
StatusActiveActive
AvailabilityBuyBuy
Country (differs)South KoreaChina
Year—unsourced2024
Specifications
Height (differs)51cm132cm−81 cm (-61%)
Mass (differs)3.5kg35kg−31.5 kg (-90%)
Degrees of freedom (differs)2023−3 (-13%)
Payload—unsourced2kg
Top speed—unsourced—unsourced
Runtime—unsourced120min
Battery capacity36.6Wh—unsourced
Price—unsourced13,500USD
Actuators (differs)20x Dynamixel XM430-W350-RUnitree in-house electric joint motors
Compute (differs)Intel NUC i3, 8GB RAM8-core CPU; optional Jetson Orin module (EDU)
Sensors (differs)Logitech C920 camera, 9-axis IMUDepth camera, 3D LiDAR, 4-mic array
Openness and provenance
Openness bar4540
Openness score (differs)45/ 10040/ 100+5
CAD (25)not publicnot public
Bill of materials (20)not publicnot public
Sim model (URDF/MJCF) (20)publicpublic
Firmware (15) (differs)publicnot public
Software (10)publicpublic
Trained policies (10) (differs)not publicpublic
Verification levelL2L2
Sources22
Last checked2026-09-242026-09-24
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Best-documented pairs

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