Hyperspawn Dropbear vs Rainbow Robotics RB-Y1
Generated from the registry · revision 2026-09-26 · openness out of 100
Dropbear is 40 cm taller (180 vs 140 cm) and 86 kg lighter (45 vs 131 kg) than Rainbow Robotics RB-Y1. Dropbear has 12 more degrees of freedom (32 vs 20) and 2 kg more rated payload (5 vs 3 kg) than Rainbow Robotics RB-Y1. Openness score: Dropbear 100, Rainbow Robotics RB-Y1 30 (of 100); only Dropbear publishes CAD, BOM, FW and POL. Availability: Dropbear preorder, Rainbow Robotics RB-Y1 buy.
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Side by side
■ rows differ| Field | Hyperspawn RoboticsHyperspawn Dropbear | Rainbow RoboticsRainbow Robotics RB-Y1 | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | Hyperspawn Robotics | Rainbow Robotics | |
| Class (differs) | Humanoid | Wheeled humanoid | |
| Status | Active | Active | |
| Availability (differs) | Preorder | Buy | |
| Country (differs) | India | South Korea | |
| Year (differs) | 2023 | 2024 | |
| Specifications | |||
| Height (differs) | 180cm | 140cm | +40 cm (+29%) |
| Mass (differs) | 45kg | 131kg | −86 kg (-66%) |
| Degrees of freedom (differs) | 32 | 20 | +12 (+60%) |
| Payload (differs) | 5kg | 3kg | +2 kg (+67%) |
| Top speed | —unsourced | 1.5m/s | |
| Runtime | 120min | —unsourced | |
| Battery capacity (differs) | 960Wh | 1,250Wh | −290 Wh (-23%) |
| Price | 9,999USD | —unsourced | |
| Actuators (differs) | MyActuator RMD-X10, RMD-X8, RMD-X6 and CEM-60 over 1 Mbit/s CAN (18 per the 2026 BOM; myactuator-can lists 12 RMD-X8 Pro, 4 RMD-X10 V3, 6 CEM-60); 6 NEMA 17 lead-screw steppers in the Stewart-platform neck. hyperspawn.ai: servo + QDD. | Rainbow in-house joint modules | |
| Compute (differs) | NVIDIA Jetson AGX Orin 64GB (BOM; Orin NX 16GB alternative) plus one ESP32-DevKitC-V4 CAN node per limb. Kit: Raspberry Pi 5 base, Jetson Orin advanced. | Dual-PC (real-time robot PC + user PC with ROS 2) | |
| Sensors (differs) | Intel RealSense D455f depth camera, IMU (center-IMU controller role), foot load cells (4x HX711 per foot, dropbear-feet), actuator encoders; five AS5600 magnetic angle sensors per leg controller (observation-safe firmware) | Built-in wrist force/torque sensors (v1.2); optional camera | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 100/ 100 | 30/ 100 | +70 |
| CAD (25) (differs) | public | not public | |
| Bill of materials (20) (differs) | public | not public | |
| Sim model (URDF/MJCF) (20) | public | public | |
| Firmware (15) (differs) | public | not public | |
| Software (10) | public | public | |
| Trained policies (10) (differs) | public | not public | |
| Verification level | L2 | L2 | |
| Sources (differs) | 16 | 2 | |
| Last checked (differs) | 2026-09-25 | 2026-09-24 | |
A dash is an unsourced figure, not zero. Sources for each robot are listed on its spec sheet: Dropbear, Rainbow Robotics RB-Y1.
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