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 H1-2

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ROBOTIS OP3 is 127 cm shorter (51 vs 178 cm) and 66.5 kg lighter (3.5 vs 70 kg) than Unitree H1-2. ROBOTIS OP3 has 7 fewer degrees of freedom (20 vs 27) than Unitree H1-2. Openness score: ROBOTIS OP3 45, Unitree H1-2 40 (of 100); only ROBOTIS OP3 publishes FW; only Unitree H1-2 publishes POL. Availability for both: buy.

Side-by-side specifications. Rows marked with a square differ.
FieldROBOTISROBOTIS OP3Unitree RoboticsUnitree H1-2Δ first − second
Identity
Maker (differs)ROBOTISUnitree Robotics
ClassHumanoidHumanoid
StatusActiveActive
AvailabilityBuyBuy
Country (differs)South KoreaChina
Year—unsourced2024
Specifications
Height (differs)51cm178cm−127 cm (-71%)
Mass (differs)3.5kg70kg−66.5 kg (-95%)
Degrees of freedom (differs)2027−7 (-26%)
Payload—unsourced7kg
Top speed—unsourced2m/s
Runtime—unsourced—unsourced
Battery capacity (differs)36.6Wh864Wh−827.4 Wh (-96%)
Price—unsourced—unsourced
Actuators (differs)20x Dynamixel XM430-W350-RUnitree in-house electric joint motors
Compute (differs)Intel NUC i3, 8GB RAMIntel Core i5 standard; i7 or up to 3x Jetson Orin NX optional
Sensors (differs)Logitech C920 camera, 9-axis IMU3D LiDAR, depth camera
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 level (differs)L2L1
Sources22
Last checked2026-09-242026-09-24
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Best-documented pairs

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