What's in This Configuration

The R1-A5 Smart D introduces BrainCo Revo 2 Basic five-finger anthropomorphic hands — the first configuration in the R1-A5 lineup to replicate true human hand morphology. Each hand features five independently actuated fingers with a wrist-mounted RGB camera, enabling research in human-like grasping, tool use, sign language, and dexterous in-hand manipulation that demands the full complement of human digits.

BrainCo Revo 2 Basic — Five Fingers, Human Form

The BrainCo Revo 2 Basic is a research-grade five-finger anthropomorphic hand that mirrors human hand anatomy. Each finger operates independently with multiple joints, enabling power grasps, precision pinches, lateral grips, and in-hand manipulation of objects designed for human hands. This is the configuration of choice for researchers studying human-like dexterity, tool use, sign language generation, and anthropomorphic robot design — domains where fewer fingers or simpler grippers are fundamentally limiting.

Anthropomorphic Grasping — Built for Human Tools

Smart D is the first R1-A5 configuration to unlock true anthropomorphic manipulation. The five-finger Revo 2 Basic hands can operate screwdrivers, grip pens, turn knobs, press buttons, and handle objects designed exclusively for human hands. Combined with wrist RGB cameras for close-up visual feedback and the Orin Nano 40 TOPS for real-time hand tracking and grasp planning, Smart D bridges the gap between industrial grippers and human-level dexterity.

Orin Nano 40 TOPS — AI Compute for Hand Tracking & Grasp Planning

The built-in NVIDIA Jetson Orin Nano delivers 40 TOPS of AI compute, handling simultaneous streams from head binocular vision and both wrist RGB cameras. Run hand pose estimation, grasp planning networks, and reinforcement learning policies for five-finger control locally with sub-millisecond latency. No external GPU server, no cloud dependency — just plug in power and start training.

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. Combined with the wrist RGB cameras on each BrainCo Revo 2 Basic hand, the R1-A5 Smart D offers a complete multi-camera perception stack for research in hand-eye coordination, active perception, and anthropomorphic manipulation.

Voice Collaboration & Natural Interaction

Four-array beamforming microphones and dual 3 W speakers enable clear voice capture and synthesis in noisy labs or classrooms. The open audio framework supports custom wake words, multilingual TTS, and integration with LLMs for conversational command-and-control.

Compact. Lightweight. Desk-Ready.

At just 700 × 357 × 190 mm and approximately 11 kg, the R1-A5 Smart D fits on a standard lab bench or classroom desk. The fixed-base design eliminates footprint concerns while delivering full upper-body humanoid kinematics with five-finger dexterity. Power via the included external supply — an optional upper-body Li-ion battery is available for ~1.5 hours of untethered operation.

Full-Stack Open Development

Unitree provides a mature, Linux-based robot development framework with open APIs for the underlying system, robotic arms, audio, lighting, and visual control. ROS 2 native support, dual encoders on every arm joint, and hollow internal wiring make the R1-A5 Smart D a clean slate for reinforcement learning, teleoperation research, embodied AI, and anthropomorphic manipulation studies. The built-in Orin Nano 40 TOPS handles model training and inference for five-finger control without external hardware.

Upgrade Path — Grow With Your Research

Start with Smart D and expand as your projects evolve. The R1-A5 platform is fully modular:

• End Effectors — Upgrade to BrainCo Revo 2 Tactile for force-sensitive five-finger grasping, or LinkerBot Hand O6 for 6-DOF dexterity with or without tactile feedback.
• Upper-Body Battery — Add the Li-ion battery pack for ~1.5 hours of cord-free operation.
• Mobile Base — Upgrade to the R1-A5-D platform with wheeled autonomous chassis, LiDAR, and expanded workspace.

Designed For

Technical Specifications

Model	Unitree R1-A5 Smart D (Fixed Base)
Dimensions	700 × 357 × 190 mm
Weight	~11 kg (with external PSU)
Total DOF	13 (Arm 5×2, Waist 1, Head 2)
Arm Reach	420 mm (forearm + upper arm)
Peak Shoulder Torque	60 Nm
Max Arm Payload	~2 kg (posture-dependent)
End-Effector Precision	±0.1 mm
End Effectors	BrainCo Revo 2 Basic five-finger anthropomorphic hands with wrist RGB cameras (both arms)
Finger Configuration	5 independently actuated fingers per hand (thumb + index + middle + ring + pinky)
Vision	Binocular camera — RGB 1280×720@30 Hz, Depth 544×448@10 Hz, FOV 146°×124°
Wrist Cameras	RGB camera integrated into each BrainCo Revo 2 Basic hand for close-up visual feedback
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	External DC PSU included (optional Li-ion battery, ~1.5 h)
SDK & Interfaces	Linux-based framework, ROS 2, open APIs for arm/audio/vision/lighting
Controllers	Standard dual-hand controllers included
Warranty	12 months on the entire unit

What's in the Box

• Unitree R1-A5 Smart D Humanoid Robot (fixed base)
• BrainCo Revo 2 Basic five-finger anthropomorphic hands with wrist RGB cameras (pre-installed, both arms)
• NVIDIA Jetson Orin Nano 40 TOPS compute module (pre-installed)
• External power supply & AC cable
• Binocular vision head module (pre-installed)
• 4-array microphone + dual speaker module (pre-installed)
• Standard dual-hand remote controllers
• Quick-start guide & safety manual
• Secondary development documentation access

R1-A5 Configuration Guide

Every configuration shares the same R1-A5 body — 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, Orin Nano 40 TOPS
Smart B	Dex3-1 (RGB)	3-finger dexterous hand with wrist RGB camera
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 battery, compute module, 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.