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Unitree Dex5-1
Number of Fingers
5.0
Degrees of Freedom
20.0
Max Payload Capacity
3.5 kg
Weight
1100.0 g

Overview

Unitree's five-finger dexterous hand: 20 degrees of freedom (16 active, 4 underactuated), 1100 g, ±1 mm fingertip repeatability and 10 N fingertip force, driven over USB 2.0 at a 1000 Hz control rate.

Specifications

General

Number of Fingers
5.0
Degrees of Freedom
20.0
Max Payload Capacity
3.5 kg
Actuation
electric
Tactile Sensing
Yes
Product Category
Multi-Finger/Anthropomorphic Hand
Series / Model
Unitree Dex5-1
Repeat Positioning Accuracy / Repeatability
1.0 mm
Peak Current
4.0 A
Weight
1100.0 g
Communication interfaces / protocol support (as documented/sold across variants)
USB 2.0 at a 1000 Hz communication rate. Full packet: 1234 bytes sender, 1270 bytes receiver. Feedback: joint mode, position, velocity, torque, temperature, voltage and current, IMU (Dex5-1P adds sensor pressure and sensor temperature). Control: joint mode, position, velocity, torque, stiffness coefficient, damping coefficient.
Model variants (right/left; bus-associated in integrator listings)
Dex5-1 (base) and Dex5-1P (adds pressure-sensor arrays: 12 units, 94 sensors, 10 g - 2500 g perception, 20 kg maximum acceptance). Body, degrees of freedom, weight, voltage and communication are identical across both.
Control Loop Frequency
1000.0 Hz
Operating Voltage Range
24.0-60.0 VDC
Communication Interface Support (raw)
USB 2.0
Actuator models (servos)
12 self-developed micro force-controlled composite transmission joints plus 4 micro force-controlled gear transmission joints; hollow-cup motors with a low-damping, small-clearance reducer. All five fingers are independently replaceable.
Fingertip strength (reported by third-party listing)
10.0 N
Active Degrees of Freedom
16.0 dof
Standby Current
0.2 A
Underactuated degrees of freedom
4.0 dof
Tactile sensing type
Dex5-1: force-controlled joints give tactile proprioception; Unitree's sensing table lists no pressure sensors for this variant ('/'). Dex5-1P adds 12 pressure-sensor units, 94 sensors in total, perception range 10 g - 2500 g.
Dimensions (L×W×H)
217.3 × 127.5 × 72.1 mm
Operating Temperature Range
-20 °C to +60 °C
Payload Definition (Nominal)
Vendor test conditions, room temperature, grasping a 5 cm round hard object: 3.5 kg with the palm facing down, 4.5 kg with the palm facing left.