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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.
R1-A7-D Smart B — mobile-base humanoid with 7-DOF arms, Dex3-1 three-finger dexterous hands, wrist RGB cameras, MID360 LiDAR & stereo vision
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.
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.
Dex3-1 three-finger dexterous hands — adaptive grasping on a mobile 7-DOF platform
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.
Wrist RGB cameras provide close-up visual feedback for grasp verification and visual servoing
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.
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.
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.
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.
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.
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.
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.
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.
Collapsed (683 mm) and elevated (1323 mm) configurations for navigation and manipulation
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.
Smart A is the entry-level mobile configuration. Expand capability as your research evolves:
| Model | Unitree R1-A7-D Smart B (Mobile Base) |
| Dimensions (Collapsed) | 683 × 520 × 440 mm (H × W × D) |
| Dimensions (Elevated) | 1323 × 520 × 440 mm (H × W × D) |
| Weight (with Battery) | ~32 kg |
| Total DOF | 20 (Arm 7×2, Waist 1, Head 2, Pillar 1, Base 2) |
| Arm Reach | 555 mm (forearm + upper arm) |
| Peak Shoulder Torque | 120 Nm |
| Max Arm Payload | ~2 kg (posture-dependent) |
| End-Effector Precision | ±0.1 mm |
| End Effectors | Dex3-1 three-finger dexterous hands (both arms, pre-installed) |
| Wrist Cameras | RGB integrated (pre-installed, both wrists) |
| Tactile Sensing | Not included (optional: Dex3-1 Tactile) |
| Vision | Binocular camera — RGB 1280×720@30 Hz, Depth 544×448@10 Hz, FOV 146°×124° |
| LiDAR | MID360 360° LiDAR (chassis-integrated) |
| Head Compute | 8-core high-performance CPU + 10 TOPS NPU |
| Body Compute | 8-core high-performance CPU |
| Onboard AI Compute | NVIDIA Jetson Orin Nano 40 TOPS (built-in) |
| Audio | 4-array microphone + dual 3 W speakers |
| Connectivity | Wi-Fi 6, Bluetooth 5.2, OTA updates |
| Power | Removable chassis Li-ion battery (~1.5 h) + external DC PSU. Upper body does not accept a battery. |
| Joint Bearings | Crossed-roller + Double-row ball bearings |
| Joint Motor | Low-inertia, high-speed, inner-rotor permanent magnet synchronous motor |
| Joint Encoders | Dual + Single per joint |
| Cabling | Hollow + Internal routing |
| Cooling | Localized air cooling |
| Waist Motion | Y: ±150° |
| Head Motion | Y: ±115°, P: ±36° |
| SDK & Interfaces | Linux-based framework, ROS 2, open APIs for arm/base/audio/vision/lighting. Wrist camera API included. |
| Controllers | Standard dual-hand controllers included |
| Rear Port Power | Yes |
| Smart OTA | Supported |
| Warranty | 12 months on the entire unit |
Every configuration shares the same R1-A7-D mobile base with 7-DOF arms — the difference is the end effector. Choose the one that matches your research goals:
| Config | Hand | Features |
|---|---|---|
| Smart A | Dex1-1 V2 | Entry-level parallel grippers, 7-DOF arms, Orin Nano 40 TOPS, MID360 LiDAR |
| Smart B | Dex3-1 (RGB) | 3-finger dexterous hand with wrist RGB camera, 7-DOF arms, Orin Nano 40 TOPS |
| Smart C | Dex3-1 Tactile (RGB) | 3-finger hand with tactile sensors + wrist RGB camera |
| Smart D | BrainCo Revo 2 Basic (RGB) | 5-finger anthropomorphic hand with wrist RGB camera |
| Smart E | BrainCo Revo 2 Tactile (RGB) | 5-finger hand with tactile sensors + wrist RGB camera |
| Smart F | LinkerBot O6 (RGB) | 6-DOF dexterous hand with wrist RGB camera |
| Smart G | LinkerBot O6 Tactile (RGB) | 6-DOF hand with tactile sensors + wrist RGB camera |
| Smart H | Tendon-driven dexterous hand | Advanced tendon-driven mechanism for research-grade dexterity |
* Specifications are based on manufacturer data and may vary slightly by production batch. Optional wrist cameras, compute modules, and alternative end effectors sold separately.
Unitree® is a registered trademark of Unitree Robotics. Images are for reference; actual product appearance may differ.
Users must maintain a sufficient safety distance. This is a civilian robot — comply with local laws and regulations.
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.
R1-A7-D Smart B — mobile-base humanoid with 7-DOF arms, Dex3-1 three-finger dexterous hands, wrist RGB cameras, MID360 LiDAR & stereo vision
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.
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.
Dex3-1 three-finger dexterous hands — adaptive grasping on a mobile 7-DOF platform
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.
Wrist RGB cameras provide close-up visual feedback for grasp verification and visual servoing
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.
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.
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.
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.
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.
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.
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.
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.
Collapsed (683 mm) and elevated (1323 mm) configurations for navigation and manipulation
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.
Smart A is the entry-level mobile configuration. Expand capability as your research evolves:
| Model | Unitree R1-A7-D Smart B (Mobile Base) |
| Dimensions (Collapsed) | 683 × 520 × 440 mm (H × W × D) |
| Dimensions (Elevated) | 1323 × 520 × 440 mm (H × W × D) |
| Weight (with Battery) | ~32 kg |
| Total DOF | 20 (Arm 7×2, Waist 1, Head 2, Pillar 1, Base 2) |
| Arm Reach | 555 mm (forearm + upper arm) |
| Peak Shoulder Torque | 120 Nm |
| Max Arm Payload | ~2 kg (posture-dependent) |
| End-Effector Precision | ±0.1 mm |
| End Effectors | Dex3-1 three-finger dexterous hands (both arms, pre-installed) |
| Wrist Cameras | RGB integrated (pre-installed, both wrists) |
| Tactile Sensing | Not included (optional: Dex3-1 Tactile) |
| Vision | Binocular camera — RGB 1280×720@30 Hz, Depth 544×448@10 Hz, FOV 146°×124° |
| LiDAR | MID360 360° LiDAR (chassis-integrated) |
| Head Compute | 8-core high-performance CPU + 10 TOPS NPU |
| Body Compute | 8-core high-performance CPU |
| Onboard AI Compute | NVIDIA Jetson Orin Nano 40 TOPS (built-in) |
| Audio | 4-array microphone + dual 3 W speakers |
| Connectivity | Wi-Fi 6, Bluetooth 5.2, OTA updates |
| Power | Removable chassis Li-ion battery (~1.5 h) + external DC PSU. Upper body does not accept a battery. |
| Joint Bearings | Crossed-roller + Double-row ball bearings |
| Joint Motor | Low-inertia, high-speed, inner-rotor permanent magnet synchronous motor |
| Joint Encoders | Dual + Single per joint |
| Cabling | Hollow + Internal routing |
| Cooling | Localized air cooling |
| Waist Motion | Y: ±150° |
| Head Motion | Y: ±115°, P: ±36° |
| SDK & Interfaces | Linux-based framework, ROS 2, open APIs for arm/base/audio/vision/lighting. Wrist camera API included. |
| Controllers | Standard dual-hand controllers included |
| Rear Port Power | Yes |
| Smart OTA | Supported |
| Warranty | 12 months on the entire unit |
Every configuration shares the same R1-A7-D mobile base with 7-DOF arms — the difference is the end effector. Choose the one that matches your research goals:
| Config | Hand | Features |
|---|---|---|
| Smart A | Dex1-1 V2 | Entry-level parallel grippers, 7-DOF arms, Orin Nano 40 TOPS, MID360 LiDAR |
| Smart B | Dex3-1 (RGB) | 3-finger dexterous hand with wrist RGB camera, 7-DOF arms, Orin Nano 40 TOPS |
| Smart C | Dex3-1 Tactile (RGB) | 3-finger hand with tactile sensors + wrist RGB camera |
| Smart D | BrainCo Revo 2 Basic (RGB) | 5-finger anthropomorphic hand with wrist RGB camera |
| Smart E | BrainCo Revo 2 Tactile (RGB) | 5-finger hand with tactile sensors + wrist RGB camera |
| Smart F | LinkerBot O6 (RGB) | 6-DOF dexterous hand with wrist RGB camera |
| Smart G | LinkerBot O6 Tactile (RGB) | 6-DOF hand with tactile sensors + wrist RGB camera |
| Smart H | Tendon-driven dexterous hand | Advanced tendon-driven mechanism for research-grade dexterity |
* Specifications are based on manufacturer data and may vary slightly by production batch. Optional wrist cameras, compute modules, and alternative end effectors sold separately.
Unitree® is a registered trademark of Unitree Robotics. Images are for reference; actual product appearance may differ.
Users must maintain a sufficient safety distance. This is a civilian robot — comply with local laws and regulations.
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