The Hello Robot Stretch 3 is a lightweight mobile manipulator designed for safe interaction in human environments. Weighing 24.5 kg, it integrates a 7-DOF arm, vertical lift, telescoping reach, and 3-DOF wrist for precise motion. Its compliant gripper includes an Intel RealSense depth camera, while the pan-tilt head provides wide-angle vision and audio sensing. The differential-drive base supports autonomous navigation and docking. Powered by an Intel NUC 12 computer, it offers 2–5 hours of runtime and WiFi 6E connectivity. Stretch 3 supports ROS 2, Python SDK, and web-based teleoperation, making it ideal for AI research, assistive robotics, and educational applications.