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Fourier GR-1 vs Sanctuary AI Phoenix

Specifications as each maker states them, side by side. The (i) beside a value links to its source.

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5 of 12 specs differ across 2 models

SpecFOFourier GR-1SASanctuary AI Phoenix
General
Height1650 mm1700 mm
Degrees of Freedom4040
Walking Speed1.39 m/s1.34 m/s
Weight55 kg70 kg
SensorsDepth cameras (head + torso), circular microphone array—
Degrees of Freedom per Hand1120
Actuation / transmissionFourier Smart Actuator (FSA) series, up to 300 N·m hip torque—
Payload Capacity50 kg25 kg
Autonomy Level—semi-autonomous
Hand Actuation Type—Hydraulic (proprietary miniaturized valves)
Fingertip Force Control Resolution—0.005 N
Locomotion base type—Bipedal (Gen 6-7); wheeled base (Gen 8+)

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