← Quadruped Robots

Go1 vs Spirit 40

Quadruped robot spec comparison — Unitree vs Ghost Robotics.

Unitree

Go1

56 / 100 Robo2u Score

Affordable consumer companion quadruped with intelligent accompaniment and super-perception systems

Ghost Robotics

Spirit 40

47 / 100 Robo2u Score

Compact defense quadruped for reconnaissance

SpecGo1Spirit 40
Released2021-062020
StatusProductionProduction
Payload5 kg3 kg
Weight12 kg12 kg
Degrees of freedom1212
Runtime150 min—
Top speed4.7 m/s2 m/s
Price$2.7k—
Robo2u Score5647

Highlighted = better on that spec (lower is better for price and weight; newer for release). The Robo2u Score is a transparent composite — see the Quadruped Robots for the full field.

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