Unitree Dex5-S Pro 22-DOF Tactile Dexterous Hand

Unitree Dex5-S Pro is the tactile-sensing version of Unitree Robotics' Dex5-S 22-DOF biomimetic dexterous hand. The official Unitree Dex5-S page presents the platform as a compact, precise, human-scale robotic hand for complex grasping and manipulation tasks, with the Pro model adding tactile sensing while preserving the same 22 degrees of freedom, payload ratings, dimensions, housing material, and electrical interface family.

Human-scale dexterous manipulation

The Dex5-S Pro is built around a 1:1 human hand scale, with 22 degrees of freedom per hand. Unitree specifies 5 DOF for the thumb, 4 DOF each for the index, middle, and ring fingers, and 5 DOF for the pinky. This configuration is intended to provide stable grip angles and finer whole-hand movement than bulkier earlier dexterous-hand designs.

Actuation, protection, and sensing

Unitree states that all 22 motors are direct-drive and backdrivable with dual encoders, and that the hand adds a roll axis on the pinky to improve grip dexterity. Each of the 22 degrees of freedom includes ultimate impact protection, helping protect the internal gears when a joint motor experiences an extreme external impact. The Pro variant is listed with tactile sensing, while the standard Dex5-S is listed without tactile sensing.

Payload and mechanical specifications

• Model: Dex5-S Pro
• Degrees of freedom: 22
• Continuous per-hand payload: 1 kg
• Peak payload: 2 kg
• Dimensions: 102 × 187 × 26 mm
• Mass: 620 g
• Housing material: Aluminum alloy
• Encoder: Dual encoder
• Tactile sensing: Yes

Electrical and communication interfaces

The Dex5-S Pro supports a 15V to 65V supply-voltage range, uses an XT30 power connector, and is rated at 200W peak power. Unitree lists T1s Ethernet ×2, high-speed RS-485 ×1, and USB ×1 communication interfaces, with a 6 Mbps baud rate. The control loop rate is listed as 1000 Hz over T1s Ethernet or USB and 50 Hz over high-speed RS-485. For Gigabit Ethernet configurations, Unitree notes that the palm camera can plug directly into the hand without external cabling.

Applications

The Dex5-S Pro is suitable for robotics research, humanoid robot manipulation, teleoperation, dexterous grasping experiments, embodied-AI training, and education programs that require a compact robot hand with high degrees of freedom and tactile feedback. Pricing and final configuration should be confirmed by quotation, because Unitree publishes only a “Price from $6,350” statement on the official Dex5-S page and does not list a separate public price for the Pro model.