humanoidrobots.systems

K-Scale K-Bot vs Pollen Reachy 2

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

K-Bot is 26 cm shorter (140 vs 166 cm) and 16 kg lighter (34 vs 50 kg) than Reachy 2. K-Bot has 2 more degrees of freedom (20 vs 18) and 7 kg more rated payload (10 vs 3 kg) than Reachy 2. Listed prices: K-Bot $8,999, Reachy 2 $70,000. Openness score: K-Bot 100, Reachy 2 45 (of 100); only K-Bot publishes CAD, BOM and POL. Availability: K-Bot diy build, Reachy 2 buy.

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Side by side

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Side-by-side specifications. Rows marked with a square differ.
FieldK-Scale LabsK-Scale K-BotPollen Robotics (Hugging Face)Pollen Reachy 2Δ first − second
Identity
Maker (differs)K-Scale LabsPollen Robotics (Hugging Face)
Class (differs)HumanoidWheeled humanoid
Status (differs)DiscontinuedActive
Availability (differs)DIY buildBuy
Country (differs)United StatesFrance
Year (differs)20252024
Specifications
Height (differs)140cm166cm−26 cm (-16%)
Mass (differs)34kg50kg−16 kg (-32%)
Degrees of freedom (differs)2018+2 (+11%)
Payload (differs)10kg3kg+7 kg (+233%)
Top speed—unsourced0.83m/s
Runtime240min—unsourced
Battery capacity—unsourced840Wh
Price (differs)8,999USD70,000USD−61,001 USD (-87%)
Actuators (differs)RobStride RS00 x2, RS02 x6, RS03 x8, RS04 x4Orbita parallel joints (neck, wrists)
Compute (differs)Raspberry Pi 5SolidRun BedRock V3000 industrial PC
Sensors (differs)cameras, microphones, head sensor array2x IMX296 RGB, Orbbec Gemini 336 RGB-D, ToF, RPLIDAR S2, IMU, microphones
Openness and provenance
Openness bar10045
Openness score (differs)100/ 10045/ 100+55
CAD (25) (differs)publicnot public
Bill of materials (20) (differs)publicnot public
Sim model (URDF/MJCF) (20)publicpublic
Firmware (15)publicpublic
Software (10)publicpublic
Trained policies (10) (differs)publicnot public
Verification levelL1L1
Sources (differs)73
Last checked (differs)2026-09-252026-09-24

A dash is an unsourced figure, not zero. Sources for each robot are listed on its spec sheet: K-Bot, Reachy 2.

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