Booster K1 vs Hyperspawn Dropbear
Generated from the registry · revision 2026-09-26 · openness out of 100
Booster K1 is 85 cm shorter (95 vs 180 cm) and 25.5 kg lighter (19.5 vs 45 kg) than Dropbear. Booster K1 has 10 fewer degrees of freedom (22 vs 32) than Dropbear. Listed prices: Booster K1 $4,999, Dropbear $9,999. Openness score: Booster K1 30, Dropbear 100 (of 100); only Dropbear publishes CAD, BOM, FW and POL. Availability: Booster K1 buy, Dropbear preorder.
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Side by side
■ rows differ| Field | Booster RoboticsBooster K1 | Hyperspawn RoboticsHyperspawn Dropbear | Δ first − second |
|---|---|---|---|
| Identity | |||
| Maker (differs) | Booster Robotics | Hyperspawn Robotics | |
| Class | Humanoid | Humanoid | |
| Status | Active | Active | |
| Availability (differs) | Buy | Preorder | |
| Country (differs) | China | India | |
| Year (differs) | 2025 | 2023 | |
| Specifications | |||
| Height (differs) | 95cm | 180cm | −85 cm (-47%) |
| Mass (differs) | 19.5kg | 45kg | −25.5 kg (-57%) |
| Degrees of freedom (differs) | 22 | 32 | −10 (-31%) |
| Payload | —unsourced | 5kg | |
| Top speed | —unsourced | —unsourced | |
| Runtime (differs) | 40min | 120min | −80 min (-67%) |
| Battery capacity | —unsourced | 960Wh | |
| Price (differs) | 4,999USD | 9,999USD | −5,000 USD (-50%) |
| Actuators (differs) | Dual-encoder actuators | 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. | |
| Compute (differs) | NVIDIA Jetson Orin NX 8GB (117 TOPS) base; up to 200 TOPS tier | 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. | |
| Sensors (differs) | RGB-D camera, 9-axis IMU, microphone array | 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) | |
| Openness and provenance | |||
| Openness bar | |||
| Openness score (differs) | 30/ 100 | 100/ 100 | −70 |
| CAD (25) (differs) | not public | public | |
| Bill of materials (20) (differs) | not public | public | |
| Sim model (URDF/MJCF) (20) | public | public | |
| Firmware (15) (differs) | not public | public | |
| Software (10) | public | public | |
| Trained policies (10) (differs) | not public | public | |
| Verification level (differs) | L1 | L2 | |
| Sources (differs) | 2 | 16 | |
| Last checked (differs) | 2026-09-24 | 2026-09-25 | |
A dash is an unsourced figure, not zero. Sources for each robot are listed on its spec sheet: Booster K1, Dropbear.
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