Hello Robot Stretch (RE1 / 2 / 3 / 4) price & specs

Q: Can Hello Robot Stretch be programmed?

Open source (hardware + software). Python stretch_body, ROS 2, Stretch AI toolkit, web teleop.

Hello Robot (USA) Hello Robot Stretch (RE1 / 2 / 3 / 4) (1)

Hello Robot (USA) Hello Robot Stretch (RE1 / 2 / 3 / 4) (2)

$24,950 (Stretch 3) / $29,950 (Stretch 4)

AvailablePython from a laptopTelescoping armLightweightOpen sourceHome research

Weeks+Shipping: About 1 week.

Remote control: Python on the robot via SSH, or the Stretch AI remote setup where a GPU laptop/desktop runs perception and planning while the robot streams sensors.

LEARN MORE (Hello Robot) ↗

Overview

The most practical research mobile manipulator for real homes.

A deliberately simple mobile manipulator (lift, telescoping arm, wrist) that weighs a fraction of PR2-class robots and fits in homes, making it the standard platform for in-home manipulation research and assistive robotics. Stretch 4 arrived in 2026 with six years of refinements. Stretch 3 remains in the lineup.

Type: Wheeled robot · Research mobile manipulators & platforms
Maker: Hello Robot (USA)
Released: 2020
Price: $24,950 (Stretch 3) / $29,950 (Stretch 4)
Status: Available
Best for: Professionals & labs
Programming: Open source (hardware + software)

Price and shipping

Stretch 3 launched February 2024 at $24,950. Stretch 4 listed at $29,950 on hello-robot.com in 2026. RE1 was $17,950 in 2020.

Shipping: About 1 week. Ordered directly from Hello Robot (US) by quote or purchase order. Stretch 3 typically ships within one week of order or pre-payment.

Specifications

Category	Wheeled rovers · Research mobile manipulators & platforms
Released	2020
Country	USA
Availability	Available
Sales	First Stretch 4 run of 200–300 units sold out (2026, estimate) TechCrunch ↗
Programmability	Open source (hardware + software)
Built-in autonomy	Task-level · Carries out multi-step jobs on its own, such as inspections, deliveries or chores
LLM support	Official LLM tools · Hello Robot's open-source Stretch AI toolkit includes LLM agent demos such as spoken pick-and-place requests. Hello Robot ↗
MuJoCo simulation	Official model · In MuJoCo Menagerie (hello_robot_stretch, hello_robot_stretch_3), plus Hello Robot's stretch_mujoco stack. stretch_mujoco ↗
NVIDIA Isaac simulation	Official model · Hello Robot's stretch_isaacsim repo ships a Stretch USD model (described as preliminary). stretch_isaacsim ↗
Gazebo simulation	Official model · Hello Robot's stretch_ros includes a stretch_gazebo package (ROS 1). stretch_ros ↗
Best for	Professionals & labs
Vision sensors	Depth camera, Camera, Lidar
Actuators	Mixed
Audio	Speaker, Microphone
Compute type	x86 PC (Intel / AMD)
Remote control	Python from a laptop
Size	Stretch 3: 141 cm tall, 33×34 cm footprint, 24.5 kg, Stretch 4: 160 cm tall, 45 cm diameter, 46 kg (33 kg with ballast removed)
Drive	2-wheel differential
Compute	Intel NUC 12 (Stretch 3)
Vision	Intel RealSense D435if (head) + D405 (gripper)
Lidar	RPLIDAR A1 2D lidar
Sensors	IMU, wrist accelerometer, cliff sensors, motor current sensing
Runtime	Stretch 3: 2 h (high CPU) to 5 h (light CPU), Stretch 4: up to 8 h (light CPU)
Speed	Base up to 0.6 m/s (software normally clamps it to about 0.3 m/s), lift and arm about 0.2 m/s
SDK	Python `stretch_body`, ROS 2, Stretch AI toolkit, web teleop

Common questions

How much does Hello Robot Stretch cost?

Hello Robot Stretch is listed at $24,950 (Stretch 3) / $29,950 (Stretch 4). Stretch 3 launched February 2024 at $24,950. Stretch 4 listed at $29,950 on hello-robot.com in 2026. RE1 was $17,950 in 2020.

Can Hello Robot Stretch be bought today?

Yes, it is on sale. Typical shipping time is about 1 week. Ordered directly from Hello Robot (US) by quote or purchase order. Stretch 3 typically ships within one week of order or pre-payment.