About
Unitree R1-A7-D Smart B
Mobile-Base Dual-Arm Humanoid Robot with Dex3-1 Three-Finger Dexterous Hands & Wrist RGB Cameras. 20 DOF, 7-DOF Arms, Orin Nano 40 TOPS, MID360 LiDAR, stereo vision & full-stack open SDK. For advanced visual manipulation research.
What's in This Configuration
The R1-A7-D Smart B steps up to three-finger dexterous manipulation. It pairs the R1-A7-D autonomous mobile base — complete with 7-DOF arms, MID360 LiDAR, stereo vision, and a removable chassis battery — with Dex3-1 three-finger dexterous hands and wrist-mounted RGB cameras for visual servoing and grasp verification. The built-in Orin Nano 40 TOPS processes stereo vision, wrist camera streams, and arm control in real time.
Dex3-1 — Three-Finger Dexterity
The Dex3-1 is a compact three-finger dexterous hand engineered for adaptive grasping and in-hand manipulation. Each finger is independently actuated, enabling a rich repertoire of grasps — from power grips on bulky objects to precision pinches on small parts. The three-finger architecture strikes an optimal balance between dexterity and control complexity, making it ideal for research in visual servoing, grasp planning, and bimanual coordination. Pre-installed on both 7-DOF arms, the Dex3-1 turns the R1-A7-D into a mobile platform capable of sophisticated manipulation in unstructured environments.
Wrist-Mounted RGB Cameras — See What You Grasp
Smart B adds wrist-mounted RGB cameras to both arms, delivering close-up visual feedback of the hand-object interaction. These cameras stream colour video at 1280×720@30 Hz with a wide field of view optimised for grasp verification, pose refinement, and visual servoing. Combined with the head-mounted stereo pair, the wrist cameras create a two-scale visual perception system: the head camera sees the scene, the wrist camera sees the grasp. Fused on the Orin Nano 40 TOPS, this dual-view architecture supports research in active perception, visual imitation learning, and closed-loop dexterous manipulation.
Vision-Wrist Fusion — Two-Scale Perception for Manipulation
Smart B processes visual data from two complementary viewpoints: the head-mounted binocular camera provides global scene understanding and object localisation, while the wrist-mounted RGB cameras offer local, hand-centric views for grasp pose estimation and execution monitoring. This vision-wrist fusion enables the robot to plan grasps from a distance, approach objects with visual guidance, and verify success through close-up inspection — all on the Orin Nano 40 TOPS without external compute. Ideal for research in visual servoing, active perception, and sensorimotor learning.
7-DOF Arms — Human-Like Redundancy & Reach
The R1-A7-D features seven degrees of freedom per arm — matching the kinematic complexity of the human upper limb. With a 555 mm reach (forearm + upper arm) and 120 Nm peak shoulder torque, these arms can reach around obstacles, maintain orientation while translating the end effector, and execute complex trajectories impossible for simpler 5- or 6-DOF manipulators. Crossed-roller and double-row ball bearings on every joint ensure smooth, precise motion with minimal backlash. Dual encoders per joint provide closed-loop accuracy for research-grade repeatability.
Autonomous Mobile Base — Navigate, Then Manipulate
The R1-A7-D chassis adds 3 degrees of freedom to the upper body: a telescopic pillar for height adjustment and a 2-DOF wheeled base for omnidirectional navigation. Combined with the MID360 LiDAR and stereo camera head, the robot builds real-time maps, plans paths, and avoids obstacles autonomously — then stops precisely to manipulate. The removable lithium-ion battery in the chassis delivers approximately 1.5 hours of untethered operation. Please note: the upper body of this model does not accept a battery.
LiDAR + Stereo Vision — Complete Perception Stack
Smart A processes data from two complementary sensors: a MID360 360° LiDAR for metrically accurate mapping and long-range obstacle detection, and a binocular camera head (146°×124° FOV, 60 mm baseline) for colour vision, object recognition, and depth estimation. Fused on the Orin Nano 40 TOPS, this dual-modality perception stack supports research in visual-LiDAR SLAM, semantic navigation, and active perception for mobile manipulation.
Orin Nano 40 TOPS — Onboard AI for Navigation & Control
The built-in NVIDIA Jetson Orin Nano delivers 40 TOPS of AI compute, running SLAM, path planning, object detection, and arm trajectory generation locally. No external GPU server, no cloud dependency — just power on and deploy. The module is pre-installed and thermally integrated with the chassis cooling system. Optional 40 or 100 TOPS compute expansion modules are available for future upgrades.
Binocular Vision & Multi-Camera Perception
A binocular camera head delivers a 146° × 124° field of view with a 60 mm stereo baseline for scene-level understanding. RGB streams at 1280×720@30 Hz and depth at 544×448@10 Hz. Wrist-mounted RGB cameras on both arms add close-up visual feedback for grasp verification and visual servoing. Combined with the MID360 LiDAR, the R1-A7-D Smart B offers a complete perception stack for research in visual-LiDAR fusion, semantic navigation, and mobile manipulation with dexterous hands.
Voice Collaboration & Natural Interaction
Four-array beamforming microphones and dual 3 W speakers enable clear voice capture and synthesis in noisy labs, warehouses, or classrooms. The open audio framework supports custom wake words, multilingual TTS, and integration with LLMs for conversational command-and-control — even while the base is in motion.
Collapsible. Mobile. Ready to Deploy.
At 683 × 520 × 440 mm collapsed (1323 mm elevated), the R1-A7-D Smart A navigates standard doorways, elevators, and lab aisles. The telescopic pillar lowers the upper body for transport and raises it for manipulation. At approximately 32 kg with battery, it is a self-contained mobile research platform — no external compute rack, no tether cables during operation.
Full-Stack Open Development
Unitree provides a mature, Linux-based robot development framework with open APIs for the underlying system, robotic arms, mobile base, audio, lighting, and visual control. ROS 2 native support, dual encoders on every arm joint, hollow internal wiring, and low-inertia, high-speed inner-rotor permanent magnet synchronous motors make the R1-A7-D Smart A a clean slate for reinforcement learning, mobile manipulation research, embodied AI, and autonomous navigation studies. The built-in Orin Nano 40 TOPS handles perception and planning locally without external hardware.
Upgrade Path — Grow With Your Research
Smart A is the entry-level mobile configuration. Expand capability as your research evolves:
- End Effectors — Upgrade to BrainCo Revo 2, LinkerBot O6, or tendon-driven hands for anthropomorphic or high-DOF dexterity.
- Tactile — Add force-sensitive fingertips and palm arrays to the Dex3-1 for contact-aware manipulation (Dex3-1 Tactile).
- Compute Module — Swap to the 100 TOPS expansion for large-model inference and multi-robot coordination.
- Large VLM — Deploy vision-language models for natural-language task specification and scene understanding.
Designed For
Technical Specifications
Unitree R1-A7-D Smart B
Mobile-Base Dual-Arm Humanoid Robot with Dex3-1 Three-Finger Dexterous Hands & Wrist RGB Cameras. 20 DOF, 7-DOF Arms, Orin Nano 40 TOPS, MID360 LiDAR, stereo vision & full-stack open SDK. For advanced visual manipulation research.
What's in This Configuration
The R1-A7-D Smart B steps up to three-finger dexterous manipulation. It pairs the R1-A7-D autonomous mobile base — complete with 7-DOF arms, MID360 LiDAR, stereo vision, and a removable chassis battery — with Dex3-1 three-finger dexterous hands and wrist-mounted RGB cameras for visual servoing and grasp verification. The built-in Orin Nano 40 TOPS processes stereo vision, wrist camera streams, and arm control in real time.
Dex3-1 — Three-Finger Dexterity
The Dex3-1 is a compact three-finger dexterous hand engineered for adaptive grasping and in-hand manipulation. Each finger is independently actuated, enabling a rich repertoire of grasps — from power grips on bulky objects to precision pinches on small parts. The three-finger architecture strikes an optimal balance between dexterity and control complexity, making it ideal for research in visual servoing, grasp planning, and bimanual coordination. Pre-installed on both 7-DOF arms, the Dex3-1 turns the R1-A7-D into a mobile platform capable of sophisticated manipulation in unstructured environments.
Wrist-Mounted RGB Cameras — See What You Grasp
Smart B adds wrist-mounted RGB cameras to both arms, delivering close-up visual feedback of the hand-object interaction. These cameras stream colour video at 1280×720@30 Hz with a wide field of view optimised for grasp verification, pose refinement, and visual servoing. Combined with the head-mounted stereo pair, the wrist cameras create a two-scale visual perception system: the head camera sees the scene, the wrist camera sees the grasp. Fused on the Orin Nano 40 TOPS, this dual-view architecture supports research in active perception, visual imitation learning, and closed-loop dexterous manipulation.
Vision-Wrist Fusion — Two-Scale Perception for Manipulation
Smart B processes visual data from two complementary viewpoints: the head-mounted binocular camera provides global scene understanding and object localisation, while the wrist-mounted RGB cameras offer local, hand-centric views for grasp pose estimation and execution monitoring. This vision-wrist fusion enables the robot to plan grasps from a distance, approach objects with visual guidance, and verify success through close-up inspection — all on the Orin Nano 40 TOPS without external compute. Ideal for research in visual servoing, active perception, and sensorimotor learning.
7-DOF Arms — Human-Like Redundancy & Reach
The R1-A7-D features seven degrees of freedom per arm — matching the kinematic complexity of the human upper limb. With a 555 mm reach (forearm + upper arm) and 120 Nm peak shoulder torque, these arms can reach around obstacles, maintain orientation while translating the end effector, and execute complex trajectories impossible for simpler 5- or 6-DOF manipulators. Crossed-roller and double-row ball bearings on every joint ensure smooth, precise motion with minimal backlash. Dual encoders per joint provide closed-loop accuracy for research-grade repeatability.
Autonomous Mobile Base — Navigate, Then Manipulate
The R1-A7-D chassis adds 3 degrees of freedom to the upper body: a telescopic pillar for height adjustment and a 2-DOF wheeled base for omnidirectional navigation. Combined with the MID360 LiDAR and stereo camera head, the robot builds real-time maps, plans paths, and avoids obstacles autonomously — then stops precisely to manipulate. The removable lithium-ion battery in the chassis delivers approximately 1.5 hours of untethered operation. Please note: the upper body of this model does not accept a battery.
LiDAR + Stereo Vision — Complete Perception Stack
Smart A processes data from two complementary sensors: a MID360 360° LiDAR for metrically accurate mapping and long-range obstacle detection, and a binocular camera head (146°×124° FOV, 60 mm baseline) for colour vision, object recognition, and depth estimation. Fused on the Orin Nano 40 TOPS, this dual-modality perception stack supports research in visual-LiDAR SLAM, semantic navigation, and active perception for mobile manipulation.
Orin Nano 40 TOPS — Onboard AI for Navigation & Control
The built-in NVIDIA Jetson Orin Nano delivers 40 TOPS of AI compute, running SLAM, path planning, object detection, and arm trajectory generation locally. No external GPU server, no cloud dependency — just power on and deploy. The module is pre-installed and thermally integrated with the chassis cooling system. Optional 40 or 100 TOPS compute expansion modules are available for future upgrades.
Binocular Vision & Multi-Camera Perception
A binocular camera head delivers a 146° × 124° field of view with a 60 mm stereo baseline for scene-level understanding. RGB streams at 1280×720@30 Hz and depth at 544×448@10 Hz. Wrist-mounted RGB cameras on both arms add close-up visual feedback for grasp verification and visual servoing. Combined with the MID360 LiDAR, the R1-A7-D Smart B offers a complete perception stack for research in visual-LiDAR fusion, semantic navigation, and mobile manipulation with dexterous hands.
Voice Collaboration & Natural Interaction
Four-array beamforming microphones and dual 3 W speakers enable clear voice capture and synthesis in noisy labs, warehouses, or classrooms. The open audio framework supports custom wake words, multilingual TTS, and integration with LLMs for conversational command-and-control — even while the base is in motion.
Collapsible. Mobile. Ready to Deploy.
At 683 × 520 × 440 mm collapsed (1323 mm elevated), the R1-A7-D Smart A navigates standard doorways, elevators, and lab aisles. The telescopic pillar lowers the upper body for transport and raises it for manipulation. At approximately 32 kg with battery, it is a self-contained mobile research platform — no external compute rack, no tether cables during operation.
Full-Stack Open Development
Unitree provides a mature, Linux-based robot development framework with open APIs for the underlying system, robotic arms, mobile base, audio, lighting, and visual control. ROS 2 native support, dual encoders on every arm joint, hollow internal wiring, and low-inertia, high-speed inner-rotor permanent magnet synchronous motors make the R1-A7-D Smart A a clean slate for reinforcement learning, mobile manipulation research, embodied AI, and autonomous navigation studies. The built-in Orin Nano 40 TOPS handles perception and planning locally without external hardware.
Upgrade Path — Grow With Your Research
Smart A is the entry-level mobile configuration. Expand capability as your research evolves:
- End Effectors — Upgrade to BrainCo Revo 2, LinkerBot O6, or tendon-driven hands for anthropomorphic or high-DOF dexterity.
- Tactile — Add force-sensitive fingertips and palm arrays to the Dex3-1 for contact-aware manipulation (Dex3-1 Tactile).
- Compute Module — Swap to the 100 TOPS expansion for large-model inference and multi-robot coordination.
- Large VLM — Deploy vision-language models for natural-language task specification and scene understanding.
Designed For
Technical Specifications
Unitree R1-A7-D Smart B Humanoid Robot
- Regular price
- $20,390.00
- Sale price
- $20,390.00
- Regular price
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