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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Reachy 2 vs Rainbow Robotics RB-Y1

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Reachy 2 is 26 cm taller (166 vs 140 cm) and 81 kg lighter (50 vs 131 kg) than Rainbow Robotics RB-Y1. Reachy 2 has 2 fewer degrees of freedom (18 vs 20) than Rainbow Robotics RB-Y1. Both list the same payload (3 kg). Openness score: Reachy 2 45, Rainbow Robotics RB-Y1 30 (of 100); only Reachy 2 publishes FW. Availability for both: buy.

Side-by-side specifications. Rows marked with a square differ.
FieldPollen Robotics (Hugging Face)Pollen Reachy 2Rainbow RoboticsRainbow Robotics RB-Y1Δ first − second
Identity
Maker (differs)Pollen Robotics (Hugging Face)Rainbow Robotics
ClassWheeled humanoidWheeled humanoid
StatusActiveActive
AvailabilityBuyBuy
Country (differs)FranceSouth Korea
Year20242024
Specifications
Height (differs)166cm140cm+26 cm (+19%)
Mass (differs)50kg131kg−81 kg (-62%)
Degrees of freedom (differs)1820−2 (-10%)
Payload3kg3kg=
Top speed (differs)0.83m/s1.5m/s−0.67 m/s (-45%)
Runtime—unsourced—unsourced
Battery capacity (differs)840Wh1,250Wh−410 Wh (-33%)
Price70,000USD—unsourced
Actuators (differs)Orbita parallel joints (neck, wrists)Rainbow in-house joint modules
Compute (differs)SolidRun BedRock V3000 industrial PCDual-PC (real-time robot PC + user PC with ROS 2)
Sensors (differs)2x IMX296 RGB, Orbbec Gemini 336 RGB-D, ToF, RPLIDAR S2, IMU, microphonesBuilt-in wrist force/torque sensors (v1.2); optional camera
Openness and provenance
Openness bar4530
Openness score (differs)45/ 10030/ 100+15
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)not publicnot public
Verification level (differs)L1L2
Sources (differs)32
Last checked2026-09-242026-09-24
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