humanoidrobots.systems

Boston Atlas (hydraulic) vs Pollen Reachy 2

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

No height, mass, DOF or payload figure is sourced for both Atlas (hydraulic) and Reachy 2 yet. Reachy 2 lists at $70,000; Atlas (hydraulic) is not for sale. Openness score: Atlas (hydraulic) 0, Reachy 2 45 (of 100); only Reachy 2 publishes SIM, FW and SW. Availability: Atlas (hydraulic) research only, Reachy 2 buy.

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Side by side

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Side-by-side specifications. Rows marked with a square differ.
FieldBoston DynamicsBoston Atlas (hydraulic)Pollen Robotics (Hugging Face)Pollen Reachy 2Δ first − second
Identity
Maker (differs)Boston DynamicsPollen Robotics (Hugging Face)
Class (differs)HumanoidWheeled humanoid
Status (differs)DiscontinuedActive
Availability (differs)Research onlyBuy
Country (differs)United StatesFrance
Year (differs)20132024
Specifications
Height—unsourced166cm
Mass—unsourced50kg
Degrees of freedom—unsourced18
Payload—unsourced3kg
Top speed—unsourced0.83m/s
Runtime—unsourced—unsourced
Battery capacity—unsourced840Wh
Price (differs)Not for sale70,000USD
Actuators (differs)HydraulicOrbita parallel joints (neck, wrists)
Compute—unsourcedSolidRun BedRock V3000 industrial PC
Sensors—unsourced2x IMX296 RGB, Orbbec Gemini 336 RGB-D, ToF, RPLIDAR S2, IMU, microphones
Openness and provenance
Openness bar045
Openness score (differs)0/ 10045/ 100−45
CAD (25)not publicnot public
Bill of materials (20)not publicnot public
Sim model (URDF/MJCF) (20) (differs)not publicpublic
Firmware (15) (differs)not publicpublic
Software (10) (differs)not publicpublic
Trained policies (10)not publicnot public
Verification level (differs)L0L1
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: Atlas (hydraulic), Reachy 2.

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