humanoidrobots.systems

Hyperspawn Dropbear vs ROBOTIS OP3

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

Dropbear is 129 cm taller (180 vs 51 cm) and 41.5 kg heavier (45 vs 3.5 kg) than ROBOTIS OP3. Dropbear has 12 more degrees of freedom (32 vs 20) than ROBOTIS OP3. Openness score: Dropbear 100, ROBOTIS OP3 45 (of 100); only Dropbear publishes CAD, BOM and POL. Availability: Dropbear preorder, ROBOTIS OP3 buy.

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Side by side

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Side-by-side specifications. Rows marked with a square differ.
FieldHyperspawn RoboticsHyperspawn DropbearROBOTISROBOTIS OP3Δ first − second
Identity
Maker (differs)Hyperspawn RoboticsROBOTIS
ClassHumanoidHumanoid
StatusActiveActive
Availability (differs)PreorderBuy
Country (differs)IndiaSouth Korea
Year2023—unsourced
Specifications
Height (differs)180cm51cm+129 cm (+253%)
Mass (differs)45kg3.5kg+41.5 kg (+1186%)
Degrees of freedom (differs)3220+12 (+60%)
Payload5kg—unsourced
Top speed—unsourced—unsourced
Runtime120min—unsourced
Battery capacity (differs)960Wh36.6Wh+923.4 Wh (+2523%)
Price9,999USD—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.20x Dynamixel XM430-W350-R
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.Intel NUC i3, 8GB RAM
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)Logitech C920 camera, 9-axis IMU
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 levelL2L2
Sources (differs)162
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: Dropbear, ROBOTIS OP3.

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