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Stretch 4 vs Unitree G1

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Quick verdict

Stretch 4 leads on 8 of 14 comparable rows

Stretch 4 leads on Data Freshness, Payload, Battery, and Manipulation (+4 more). Unitree G1 leads on Readiness Score, Reality Score, Speed, and Price (+2 more).

Who should choose which?

Stretch 4
Choose Stretch 4 if…
  • Strengths like perception and manipulation match how you plan to use it at home.
  • You prefer a other form factor over the alternatives in this compare.
Unitree G1
Choose Unitree G1 if…
  • You want higher readiness (89/100 vs peers) for near-term home use.
  • Budget is a priority and Unitree G1 lists lower ($16,000).
  • Strengths like mobility and perception match how you plan to use it at home.
  • You prefer a humanoid form factor over the alternatives in this compare.
Spec
Stretch 4
Hello Robot
Leads 8
Unitree G1
Unitree
Leads 6
Performance
Readiness Score
84
89
Reality Score
80
82
Data Freshness
100%
85%
Speed2.2 km/h7 km/h
Payload2.5 kg (extended) / 4 kg (retracted)2–3 kg
Specs
Height160 cm127 cm
Weight46 kg35 kg
Battery8 h2 h
FormOtherHumanoid
Availability
Price$29,950$16,000
Market StatusBuy NowPre-order
AvailabilityLimitedLimited
CountriesUnited States, Global (direct order)United States, China, Japan, Germany
Intelligence
Mobility
82
92
Manipulation
88
78
Perception
90
80
Autonomy
74
65
Social Interaction
58
45
Home Navigation
86
70
Sensors2× hemispherical 3D LiDAR (Hesai), 3× high-res cameras, 6× laser line sensors, wrist depth camera, IMUIntel RealSense D435, LIVOX MID-360 LiDAR, IMU
ConnectivityWi-Fi 5.2, Ethernet, USB expansionWi-Fi, Ethernet
EcosystemROS 2 Humble; Python SDK; Stretch Body software stack; Optional self-charging dock; Quick-release gripper tooling; Global distributor network (Japan, Korea, China)Unitree SDK; ROS2 support; Third-party teleoperation apps
Green cells mark the stronger value in each row across 2 robots.
View Stretch 4 →View Unitree G1 →