Fourier
GR-3
Humanoid robot
- Photograph
- None licensed yet
- Model
- GR-3
Fourier GR-3
FourierHumanoid robotAnnounced
Fourier GR-3 is the company's third-generation humanoid robot, described by Fourier as its first full-size 'Care-bot' designed for wellness companionship and emotional connection, with a Multimodal/Full-Sense Interaction System combining vision, audio and tactile feedback. It stands 165 cm tall and weighs about 71 kg, with 55 degrees of freedom and a single-arm payload of about 3 kg; an optional 12-DOF dexterous hand is available in place of the base 6-DOF hand. It runs on a lithium-ion battery pair (702 Wh + 234 Wh) for about 3 hours per charge (about 1.5 hours to recharge), carries an AMD Ryzen 7 8845HS 8-core/16-thread compute module running Ubuntu 22.04, and supports Ethernet and Wi-Fi 6 connectivity. A variant, GR-3C ('Cosmo'), adds a LiDAR module for navigation in complex environments. Fourier's GR3 SDK (built on the Fourier Aurora SDK and FourierDDS middleware) exposes motion control, sensor, actuator, end-effector, navigation, manipulation, power and media modules, and the documentation describes a full exoskeleton teleoperation and data-acquisition workflow specific to the GR3 series.
EDITORIALOverview reviewed against the cited sources by WBH, .
- HEIGHT
- 165 cm
- WEIGHT
- ≈71 kg
- DOF
- 55
- RUNTIME
- ≈3 h
DATA · 23 FIELDS
Specifications
- Official source
- Community measured
- Not published
| Height | 165 cmStanding height; consistent across the product page and the v3.0.2 docs | Official source [1][7] |
|---|---|---|
| Weight | ≈71 kgConsistent across the product page and the v3.0.2 docs | Official source [1][7] |
| Degrees of freedom | 55Base configuration (6-DOF hands); total actuator count is 'up to 55' with the optional 12-DOF dexterous hand fitted, per the docs, though the docs do not state a combined total for that configuration | Official source [1][6][7] |
| Locomotion | BipedalStated for the GRx series, of which GR-3 is a member | Official source [2] |
| Walking speed | 6.1 km/h (Developer Center); 5.5 km/h (product page)Taken from the detailed v3.0.2 spec table; the product marketing page states 5.5 km/h instead (see discrepancies) | Official source [1][19] |
| Ingress protection | Not published | Not published |
| Max joint torque | 440 N·mMaximum joint peak torque; specific joint not named | Official source [19] |
|---|---|---|
| Head DOF | 2 | Official source [1][7] |
| Waist DOF | 3 | Official source [1][7] |
| Arm DOF (per arm) | 7Single arm | Official source [1][7] |
| Leg DOF (per leg) | 6Single leg | Official source [1][7] |
| Battery | Li-ion, 702 Wh + 234 Wh, hot-swappable | Official source [19] |
|---|---|---|
| Runtime | ≈3 hConsistent across the product page and docs | Official source [1][19] |
| Charging time | ≈1.5 hSingle charge time | Official source [19] |
| Compute | AMD Ryzen 7 8845HS, Ubuntu 22.04 | Official source [19] |
|---|---|---|
| Perception sensors | Monocular/OAK camera, 6-axis IMU, mic array, 31 tactile sensorsDiscrepancy between docs ('Monocular camera') and product page ('stereo depth camera module') — see discrepancies | Official source [1][19] |
| Connectivity | Ethernet, Wi-Fi 6 | Official source [19] |
| End effector | 6-DOF base hand, optional 12-DOF hand | Official source [1][19] |
|---|---|---|
| Single-arm payload | ≈3 kgConsistent across the product page and docs | Official source [1][7] |
| Hand DOF (base) | 6 (base); optional 12-DOF hand available | Official source [19] |
| Indicative price | Not published | Not published |
|---|---|---|
| Availability | Developer/pilot units confirmed; no public order page found | Official source [12] |
| Warranty | Not published | Not published |
DATA · SOFTWARE & SIMULATION
Fourier GR-3 SDK and URDF
| INTERFACE | SUPPORT | PACKAGE / VERSION | SRC |
|---|---|---|---|
| SDK | Official | Fourier Aurora SDK: C++17 and Python client library over FourierDDS. GitHub release fourier_aurora_sdk (Aurora SDK 1.0.1); the Debian package explicitly ships 'GR3 examples'. Docs quick-start installs the Python wheel via 'pip install fourier-aurora-client==0.2.1' (a version behind the 1.0.1 GitHub release — see discrepancies). SDK modules: GR-Controller, GR-Sensor, GR-Actuator, GR-EndEffector, GR-Navigation, GR-Manipulation, GR-Power, GR-Media, GR-MotionBank, FourierDDS. | [8][12][15] |
| ROS 2 | Not published | No official ROS 2 package or statement for GR-3 found. Fourier's GR-3 middleware is FourierDDS (a DDS-based layer), distinct from ROS 2. A ROS 1 (noetic) install step appears only in the GR1-specific Wiki-GRx-Gazebo repository, not for GR-3. | |
| Isaac Sim / Lab | Not published | Listed as a GR-3 capability (Isaac Sim and MuJoCo simulation) in Fourier's capability map, but no GR-3 simulation model or documentation is published yet: the linked page is under construction. | [9][10] |
| MuJoCo | Not published | Listed in the capability map alongside Isaac Sim; no GR-3 MJCF model is published. Fourier's public Wiki-GRx-Mujoco repository covers GR-1 only. | [9][17] |
| Gazebo | Not published | No GR-3 Gazebo support found. The public Wiki-GRx-Gazebo repository covers only GR1T1/GR1T2 (GR-1) with ROS 1 (noetic). | |
| URDF / MJCF | Official | Wiki-GRx-Models (official FFTAI GitHub repository) lists GR3 URDF models: gr3v2_1_1 (basic and with dummy hand), alongside separate GR1 and GR2 model sets. | [16] |
| Languages | Official | C++17 and Python (fourier_aurora_sdk README); Python quick-start examples in the GR-3 docs. | [15] |
| Teleoperation | Official | Full exoskeleton-based teleoperation and data-acquisition (DAQ) workflow documented specifically for the GR3 series: full-body wireless control, motion/posture/camera/depth data capture with local storage, no cloud dependency. | [11] |
IN SHORT
Fourier GR-3: quick answers
- How tall is the Fourier GR-3?
- 1.65 m, as Fourier publishes it.
- How much does the Fourier GR-3 weigh?
- ≈71 kg, as Fourier publishes it.
- How many degrees of freedom does the Fourier GR-3 have?
- 55, according to Fourier.
- Does the Fourier GR-3 have an SDK?
- Yes: Fourier publishes Fourier Aurora SDK: C++17 and Python client library over FourierDDS. GitHub release fourier_aurora_sdk (Aurora SDK 1.0.1); the Debian package explicitly ships 'GR3 examples'. Docs quick-start installs the Python wheel via 'pip install fourier-aurora-client==0.2.1' (a version behind the 1.0.1 GitHub release — see discrepancies). SDK modules: GR-Controller, GR-Sensor, GR-Actuator, GR-EndEffector, GR-Navigation, GR-Manipulation, GR-Power, GR-Media, GR-MotionBank, FourierDDS..
DATA · 4 COMPARISONS
Compare Fourier GR-3
7 SPECIFICATIONS
AGIBOT X2 vs Fourier GR-3X2 and GR-3 compared: height, weight, degrees of freedom, walking speed and more, as their makers publish them.
7 SPECIFICATIONS
Boston Dynamics Atlas vs Fourier GR-3Atlas and GR-3 compared: height, weight, degrees of freedom, runtime and more, as their makers publish them.
8 SPECIFICATIONS
Fourier GR-3 vs LimX LunaGR-3 and LimX Luna compared: height, weight, degrees of freedom, walking speed and more, as their makers publish them.
8 SPECIFICATIONS
NEO vs Fourier GR-3NEO and GR-3 compared: height, weight, degrees of freedom, walking speed and more, as their makers publish them.
DATA · 6 ROBOTS
Robots similar to the Fourier GR-3
- LimX OliLimX Dynamics1.65 m · ≤55 kg with battery · 33 DoF
- AGIBOT A2 (A2 Ultra / A2 Lite)AGIBOT1.69 m · ≈69 kg (Ultra) / ≈64 kg (Lite) · 40 (Ultra) / 23 (Lite) DoF
- LimX LunaLimX Dynamics1.6 m · 56 kg · 27 DoF
- PAL Robotics KANGAROOPAL1.6 m · 50–65 kg · 14–40 DoF
- ROBOTERA L7ROBOTERA1.71 m · 65 kg · 55 DoF
- AGIBOT A3AGIBOT1.73 m · 55 kg
Compare the Fourier GR-3 with the closest three side by side
COMMUNITY · 0 THREADS
Discussions about Fourier GR-3
No community threads about Fourier GR-3 yet. Own one, develop for one or evaluating it? Ask a question or share what you learned: it will appear here.
Community posts are written by members and are not checked by WBH. Facts on robot pages come from cited sources; report a data error to have it corrected.