Unitree R1 - a fully functional ultra-lightweight humanoid robot

English translation from Unibot. Source published 2025-08-13.
Unitree introduced the R1 humanoid robot, weighing about 25 kg and costing approximately $5,900. This lightweight mechanism combines a high degree of freedom of movement with advanced custom actuators, providing a combination of dexterity and strength for scientific research, educational purposes and entertainment applications.
Particular attention is paid to the possibility of personalizing the appearance of the device. According to the developers, the R1's body panels are available in a variety of colors and design styles, allowing users to create a custom design. Specially designed electric joint drives ensure smooth movements, providing high torque and quick response. This allows R1 to perform dynamic feats like handstands and flips, displaying impressive coordination and power.
The technical characteristics of data perception and processing also meet high standards. The robot is equipped with an ultra-wide-angle stereoscopic camera for 3D vision, a four-microphone array for spatial audio processing, and a pair of stereo speakers for interacting with the environment. Signal processing is performed by an eight-core processor, and an optional NVIDIA Jetson Orin module is available to accelerate machine learning tasks. For communication, Wi-Fi 6 and Bluetooth 5.2 modules are provided, remote control is possible through a special application, and it is possible to update software over the air. The device is powered by a smart lithium-ion battery that provides approximately one hour of battery life, which is easy to replace thanks to the quick replacement of the power supply.
With 26 degrees of freedom—six articulations in each leg, five in each shoulder, and two in the waist and head—R1 exhibits the flexibility of movement suitable for a wide range of tasks and demonstrations. The company offers a standard version of the model with an eight-month warranty and an educational modification that supports aftermarket development and extends the warranty to one year. Despite the complexity of the design and significant power, the developers emphasize that the R1 is intended solely for civilian research and training purposes, and not for industrial use. However, the optimal balance of price, versatility and customization makes the new bipedal robot an accessible tool for students, researchers and enthusiasts interested in the prospects for the development of humanoid robot technology.