UNITREE · Dexterous robot hands
Unitree Dex5-S
Dex5-S dexterous robotic hand
22 degrees of freedom per hand. Effortless dexterity, at your command.
Compact and precise: 1:1 human hand scale
Closer than ever to the size of a real human hand, Dex5-S handles far more complex and delicate tasks than the bulky dexterous hands of the past. 22 DoF: More degrees of freedom provide more comfortable and stable gripping angles. Actuation: All 22 motors are direct-drive and backdrivable; dual encoders and a new roll axis in the little finger significantly enhance the grasping capability of the entire hand. Bending durability test: Durable bending; stable and reliable operation.
22 DoF
Greater freedom of movement, comfortable and stable gripping angles.
Actuation
22 direct-drive, backdrivable motors; dual encoders and a roll axis in the little finger.
Bending durability
Stable and reliable operation in long-term bending tests.
Advanced impact protection
When a dexterous hand joint motor is subjected to an extreme external impact, the impact protection structure helps protect the gears from damage. All 22 DoF are protected.
The manufacturer's description specifies the protection coverage as 22 DoF; no durability test standard or impact energy is stated.
Power and operating load
The best training is training uninterrupted by overtemperature warnings. Dex5-S supports a peak load of up to 2 kg per hand and a continuous operating load of 1 kg.
Peak load per hand
Short-term peak capacity.
Continuous load per hand
Continuous operating load.
The Unitree Dex5-S manufacturer page distinguishes between peak and continuous load; the values should not be used interchangeably.
Three interface options
Supports a wide 15–65 V input range. Choose your connection: Gigabit Ethernet, USB, or high-speed RS-485. In the Gigabit Ethernet configuration, the palm camera connects directly to the hand; no external cable is required.
Power supply
Wide input voltage range.
Connectivity
Gigabit Ethernet, USB, or high-speed RS-485.
Palm camera
In the Gigabit Ethernet configuration, the camera connects directly to the hand.
The manufacturer text describes the camera connection in the Gigabit Ethernet configuration.
Precision
Built around precision micro gearboxes.
No numerical accuracy/tolerance value is provided for precision.
Product parameters
The values below are comparative parameters provided by the manufacturer for Dex5-S and Dex5-S Pro. Most values in the table are the same for both models; tactile sensing is shown as “/” for the standard Dex5-S and YES for the Pro.
| Model | Dex5-S / Dex5-S Pro |
|---|---|
| Degrees of freedom | 22 / 22 DoF |
| Thumb DoF | 5 / 5 |
| Index / middle / ring finger DoF | 4 / 4 |
| Little finger DoF | 5 / 5 |
| Advanced impact protection | All 22 DoF / all 22 DoF |
| Continuous load per hand | 1 kg / 1 kg |
| Dimensions (L × W × H) | 102 × 187 × 26 mm / same |
| Weight | 620 g / 620 g |
| Body material | Aluminum alloy / same |
| Peak load | 2 kg / 2 kg |
| Encoder | Dual encoder / dual encoder |
| Tactile sensing | Not specified / Yes (YES) |
| Supply voltage | 15–65 V / 15–65 V |
| Power connector | XT30 / XT30 |
| Peak power | 200 W / 200 W |
| Gigabit Ethernet | Yes / yes |
| Communication protocol | T1s Ethernet ×2, high-speed RS-485 ×1, USB ×1 (both models) |
| Baud rate | 6 Mbps / 6 Mbps |
| Control loop rate | 1000 Hz / 50 Hz |
| Sensing and feedback | Same (both models) |
| Control commands | Same (both models) |
Unitree Dex5-S This page contains information about the Unitree Dex5-S model. Since the source table includes a Dex5-S Pro comparison column, the stated values are presented in the comparative format used on the same product page; they should not be considered a separate variant page. The measurements and units in the source text have been preserved.
Installation conditions and safe use
Manufacturer footnotes: As2 supports only single-arm installation due to body size constraints. A2 is subject to body size and power constraints; high-speed movements are not permitted when two robotic arms are installed, and care should be taken to ensure safety during use. The product is a civilian-use robot; hazardous modifications and hazardous use should be avoided, and local laws and regulations must be followed.
Unitree Dex5-S The As2/A2 conditions appear in the page footnotes; they are not specifications of the Dex5-S itself.
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