Stretch 4 — Hello Robot Product Profile

Facts

Company: Hello Robot
Product type: Mobile Manipulator
Status: commercial
Capability focus: Manipulation
Website: https://hello-robot.com/stretch-4/

Profile sections

Summary
Overview
Market context
Audience
Workflow
Capability
Deployment environment
Positioning tags
Specifications
Tags
Record / Articles
Timeline / Research
Comparable Systems
Sources

Summary

Stretch 4 is Hello Robot mobile manipulator for research, education and assistive robotics. It combines a compact mobile base, vertical lift and extendable arm for navigation and everyday manipulation tasks in homes, labs and indoor spaces.

Overview

Stretch 4 is Hello Robot mobile manipulator for research, education and assistive robotics. It combines a compact mobile base, vertical lift and extendable arm for navigation and everyday manipulation tasks in homes, labs and indoor spaces.

Market context

Commercial mobile manipulator from Hello Robot for indoor assistance, research, and practical manipulation near people using a compact non-humanoid body.

Target environment: Homes, research labs, care environments and indoor human spaces.
Workflow context: Mobile manipulation, object reaching, assistive tasks, indoor navigation and human-centred robot research.
Deployment model: Research and assistive mobile manipulation platform used by robotics teams and developers.
Commercial maturity: Public robot product from Hello Robot.
Adoption constraints: Requires application development, task setup, safe human-space operation and manipulation reliability.
Market position: Compact mobile manipulator focused on practical indoor reach and accessible research use.
Adjacent products: Assistive mobile manipulator for indoor research, home robotics and accessibility-focused task development.

Audience

Researchers

Workflow

Mobile manipulation, object reaching, assistive tasks, indoor navigation and human-centred robot research.

Capability

manipulation

Deployment environment

Homes, research labs, care environments and indoor human spaces.

Positioning tags

Audience: Researchers
Workflow: Mobile manipulation, object reaching, assistive tasks, indoor navigation and human-centred robot research.
Capability: manipulation
Deployment environment: Homes, research labs, care environments and indoor human spaces.

Specifications

Form Type: Assistive mobile robot with telescoping arm
Commercial Status: Available now
Starting Price Usd: 29950 USD
Mobility: Omnidirectional mobile base
Manipulation: Telescoping lift and arm with dexterous gripper
Compute: NVIDIA Jetson Orin NX
Sensors Summary: Sensor-rich head for perception, interaction and navigation
Software Stack: Open-source robot platform for research, development and Physical AI applications
Operational Environment: Homes, labs and workplaces
Reach Cm: 55 cm + 6 cm wrist
Top Speed Mps: 0.6 m/s
Total Dof: 9 DoF
Footprint Cm: 45 cm diameter cm
Payload Kg Retracted: 4 kg
Sensor Suite: Dual 3D hemispherical LiDARs; dual 2.3 MP RGB cameras; 12 MP RGB camera; wrist stereo depth camera; 6 laser line sensor curtains; 9-DoF IMU
Weight Kg: 46 kg
Compute Model: Intel NUC 15 with Intel Core Ultra 5 225H; NVIDIA Jetson Orin NX auxiliary compute
Runtime Hours: 8 h
Height Cm: 160 cm
Battery Capacity Wh: 512 Wh
Operating Temp: 10-30 °C
Transport Weight Kg: 33 kg with ballast removed kg
Payload Kg At Full Extension: 2.5 kg
Ip Rating: IP20

Record / Articles

2026-05-12 - Article - Hello Robot launches Stretch 4 for mobile manipulation

Timeline / Research

2026-05-12 - Product Launch - Hello Robot launches Stretch 4 mobile manipulator - Hello Robot launched Stretch 4 as an open-source mobile manipulator for Physical AI applications.

Comparable Systems

Quanta X2 - X Square Robot - Mobile Manipulator
Astribot S1 - Astribot - Mobile Manipulator
Reachy 2 - Pollen Robotics - Mobile Manipulator

Stretch 4 product profile