Hello Robot
Hello Robot Stretch 4
Lightweight mobile manipulator with a telescoping arm on a lift, aimed at home assistance, research and enterprise tasks, with open ROS 2 and Python software.
Learn:AI in robots: perception, learned control and foundation modelsHow robots are programmed: pendants, hand guiding, simulation and codeRobot software: controllers, SDKs and ROS
Compare with other robots- Height
- 1,600 mm
- Width
- 450 mm
- Weight
- 46 kg
- Payload
- 2.5 kg
Overview
- Official website
- hello-robot.com (opens in a new tab)
Technical specifications
Dimensions
| Specification | Value | Source |
|---|---|---|
| Height | 1,600 mm | hello-robot.com (opens in a new tab)Sep 28, 2026 |
| Width | 450 mmfootprint diameter 45 cm | hello-robot.com (opens in a new tab)Sep 28, 2026 |
| Weight | 46 kgtotal; 33 kg with ballast removed for transport | hello-robot.com (opens in a new tab)Sep 28, 2026 |
Performance
| Specification | Value | Source |
|---|---|---|
| Payload | 2.5 kgarm extended; 4 kg with arm retracted | hello-robot.com (opens in a new tab)Sep 28, 2026 |
| Reach | 550 mmarm reach 55 cm plus 6 cm wrist | hello-robot.com (opens in a new tab)Sep 28, 2026 |
Power & battery
| Specification | Value | Source |
|---|---|---|
| Runtime | 480 min8 hours, light CPU load | hello-robot.com (opens in a new tab)Sep 28, 2026 |
Sensors
| Specification | Value | Source |
|---|---|---|
| Depth camera | Yeswide-FOV depth sensing, calibrated RGB + depth | hello-robot.com (opens in a new tab)Sep 28, 2026 |
Software
| Specification | Value | Source |
|---|---|---|
| ROS support | Yesopen-source ROS 2 | hello-robot.com (opens in a new tab)Sep 28, 2026 |
| SDK available | YesPython SDK | hello-robot.com (opens in a new tab)Sep 28, 2026 |
Documentation
External links to the original publishers.
Manuals and datasheets
Official pages and more
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