A distinct generation
Fourier introduced GR-2 in 2024 and still describes it separately on its current GRx family page. The later GR-3 and GR-3C are different products. That distinction is especially important when reading claims about social interaction or care: a feature shown on GR-3 should not be added to a GR-2 specification sheet.21
The GR-2 developer manual describes experimental applications in research, manufacturing, guided services and rehabilitation-related work. A June 2025 investor filing also describes GR-1 and GR-2 batch production. For a purchase now, ask Fourier to confirm the available configuration, destination and delivery schedule. The current family listing does not provide a priced retail offer.341Inferred
Read the hands before the total
Fourier’s manual gives a height of 1,750 mm and an approximate weight of 63 kg. It specifies six degrees of freedom per standard hand, with optional twelve-degree-of-freedom hands. The advertised maximum of 53 degrees of freedom belongs to that higher-hand configuration. Each arm has seven degrees of freedom and each leg has six.3
For a manipulation project, choose an actual object first: perhaps a small carton, a laboratory container or a tool handle. Ask which hand can grip it, whether the software exposes the control you need and what happens when the object slips. The manual’s approximate 3 kg single-hand load is useful context, but it is not a whole-body lifting rating or evidence that the robot can move a person.3
The published nominal figures include an approximately 950 Wh battery, around two hours of operation and around two hours to charge, together with a 5 km/h walking specification. These belong to the documented GR-2 hardware. Ask for the expected endurance during your own task and the included battery package before using them to plan a working session.35
Make room for the setup
The unpacking guide calls for three people and lifting apparatus to remove the robot from its transport case. It lists a handheld controller, spare battery, charger, emergency-stop equipment and calibration tools. That is useful ownership information: plan the workspace, lifting arrangements and operator training as part of the purchase, and confirm which of those items the current quote includes.5
The technical manual describes onboard and wireless emergency stops, a binocular camera and an inertial sensor, with an Intel Core i7 module handling motion control. Ask the supplier to show the stop and recovery process on the delivered machine. Camera access, remote support, software licensing and local warranty coverage also deserve explicit answers; the hardware manual does not settle those commercial and data terms.31
Who should explore it?
GR-2 is most relevant when the project itself is developing a robotic capability. A laboratory can define success as a repeatable manipulation or locomotion experiment, then evaluate the platform against that target. A family wanting finished daily assistance should ask for a product-specific offer that covers the task and support they need. Fourier’s rehabilitation background does not by itself turn GR-2 into a ready-to-use care service.31Inferred
Does every GR-2 have 53 degrees of freedom?
No. Fourier’s manual describes six degrees of freedom per standard hand and optional twelve-degree-of-freedom hands. The maximum total of 53 belongs to that optional configuration. The quote should identify the supplied hands and demonstrate the tasks you want to develop.3
What does setting up GR-2 involve?
The unpacking guide calls for three people and lifting apparatus. Its documented kit includes a controller, spare battery and emergency-stop equipment. Confirm the current kit, workspace, calibration and training arrangements with the supplier before delivery.5
Can GR-2 provide everyday help at home?
GR-2 is a research and development platform, not a finished household care service. The manual describes experimental applications; it does not settle what a particular delivered machine will do at home. Ask about the exact task, software access, remote-support permissions and service coverage rather than relying on Fourier’s broader rehabilitation background.31
Specifications and configuration
Fourier GR-2 · GR-2 developer manual; optional hands identified below · Manufacturer documentation; current quote must confirm supplied hardware
Fourier’s manual distinguishes standard and optional hands. Approximate mass, battery and endurance figures remain approximate; the supplier should confirm the configuration and expected performance for the intended task.3
- Height
- 1,750 mmDocumented GR-2 dimensions, not a later GR-3 model.3
- Robot mass
- Approximately 63 kgManufacturer’s approximate net weight.3
- Standard hand articulation
- 6 degrees of freedomPer hand in the standard configuration.3
- Optional hand articulation
- 12 degrees of freedomPer hand with the enhanced optional hardware.3
- Maximum articulated configuration
- 53 degrees of freedomUp to 53 with the optional twelve-DoF hands, not every GR-2.3
- Single-hand load
- Approximately 3 kgA single-hand rating, not whole-body or person-lifting capacity.3
- Stated walking speed
- 5 km/hNominal manufacturer specification, not an independent terrain test.3
- Battery capacity
- Approximately 950 WhDocumented lithium-ion battery.3
- Stated operating time
- Approximately 2 hoursTask and workload affect endurance.3
- Stated charging time
- Approximately 2 hoursNominal figure from the manufacturer’s table.3
Sources and notes
- 1. Fourier GRx series page
The GRx page identifies GR-2 as the second generation. Its continued listing does not settle current stock, delivery territory or warranty terms.Inferred
Evidence checked: 2026-10-25
- 2. Fourier current company profile
Fourier’s timeline dates GR-2 to 2024. GR-3 and GR-3C are later, separate models.
Evidence checked: 2026-10-25
- 3. Fourier GR-2 developer introduction
The GR-2 manual distinguishes six-DoF standard hands from optional twelve-DoF hands. The maximum of 53 degrees of freedom uses the latter. About 3 kg is a single-hand load; mass, battery capacity and endurance retain the manual’s approximation and workload limits.
Evidence checked: 2026-10-25
- 4. Runyang E3 investment announcement 2025-052
The June 2025 investor disclosure describes GR-1 and GR-2 batch production. It is historical production evidence, not a current destination-specific supply contract.
Evidence checked: 2026-10-25
- 5. Fourier GR-2 unpacking and startup guide
The preparation guide calls for three people and lifting apparatus and lists a controller, spare battery and stop equipment. Confirm the supplied kit and complete setup instructions for the actual quotation.
Evidence checked: 2026-10-25
