humanoidrobots.systems

PAL Kangaroo vs Rainbow Robotics RB-Y1

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

Kangaroo is 20 cm taller (160 vs 140 cm) than Rainbow Robotics RB-Y1. Both score 30/100 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.
FieldPAL RoboticsPAL KangarooRainbow RoboticsRainbow Robotics RB-Y1Δ first − second
Identity
Maker (differs)PAL RoboticsRainbow Robotics
Class (differs)HumanoidWheeled humanoid
StatusActiveActive
AvailabilityBuyBuy
Country (differs)SpainSouth Korea
Year (differs)20212024
Specifications
Height (differs)160cm140cm+20 cm (+14%)
Mass—unsourced131kg
Degrees of freedom—unsourced20
Payload—unsourced3kg
Top speed—unsourced1.5m/s
Runtime—unsourced—unsourced
Battery capacity (differs)976Wh1,250Wh−274 Wh (-22%)
Price—unsourced—unsourced
Actuators (differs)custom linear actuators with integrated force sensorsRainbow in-house joint modules
Compute (differs)2x Intel i7 PCs, optional NVIDIA JetsonDual-PC (real-time robot PC + user PC with ROS 2)
Sensors (differs)4x RGB-D, 1 kHz IMU, optional F/T sensorsBuilt-in wrist force/torque sensors (v1.2); optional camera
Openness and provenance
Openness bar3030
Openness score30/ 10030/ 100=
CAD (25)not publicnot public
Bill of materials (20)not publicnot public
Sim model (URDF/MJCF) (20)publicpublic
Firmware (15)not publicnot public
Software (10)publicpublic
Trained policies (10)not publicnot public
Verification level (differs)L1L2
Sources22
Last checked2026-09-242026-09-24

A dash is an unsourced figure, not zero. Sources for each robot are listed on its spec sheet: Kangaroo, Rainbow Robotics RB-Y1.

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