DEX3-1: Advanced Dexterous Hand for Precision Robotics

The Unitree DEX3-1 is a compact, 7-DOF robotic dexterous hand designed for high-performance humanoid platforms like the G1 EDU+ and above. Weighing just 710g, it delivers independent motion through six direct-drive joints and one gear-driven joint, enabling fluid, human-like manipulation for AI training, grasp research, and advanced interaction tasks. Each DEX3-1 model supports precision movement via micro brushless force-control motors and USB 2.0 for fast integration. Both models are capable of repeatable positioning (±2mm) and can handle objects up to 500g with burst power reaching 400W. The DEX3-1 is available in two configurations: the standard version and a sensor-enabled version that integrates 33 distributed tactile sensors across the fingers. This optional feedback layer allows for real-time grasp adaptation, ideal for delicate handling, HRI studies, and responsive control environments.

Key Features

• 7 DOF per hand: 3 thumb joints, 2 index joints, 2 middle joints
• 6 direct-drive + 1 gear-driven joint architecture
• ±2mm fingertip repeatability
• Grasp capacity up to 500g
• 400W burst power (3s max)
• 12–58V operating voltage
• USB 2.0 communication interface

Optional Tactile Sensor Model

• 33 pressure sensors for real-time force feedback
• Enables adaptive interaction with variable shapes, weights, and textures

Compatibility & Use Cases

• Compatible with G1 EDU+ (U2) and higher-tier Unitree humanoid systems
• Ideal for robotic manipulation research, AI model training, and dexterous grasp algorithm development