Comprehensive GO2 Robot Comparison

Unitree Robotics is one of the first companies to make agile, full-size quadruped robots available outside of elite labs. Until recently, large four-legged “robot dog” platforms mostly came from major research groups like Boston Dynamics or were custom one-off projects. The Unitree Go2 lineup pushes that capability into something you can actually buy, configure, and deploy for education, R&D, inspection, and security use — not just watch in a demo.

All Go2 variants are built around high-mobility legged locomotion. They use onboard vision and 3D LiDAR to map their surroundings, avoid obstacles, and follow planned paths. The joints are high-torque and actively stabilized, so they can walk on indoor floors, uneven ground, ramps, and curbs with surprising balance. Compared to older-generation quadrupeds, they also deliver significantly longer runtime per pack and support practical payloads for sensors and tools.

This page walks through the main Go2 families — standard walking versions (Air / Pro / X / EDU), enterprise patrol/inspection packages (ENT), and the wheeled hybrid (Go2-W). You’ll also see where certain specs are not published or are model-specific; in those cases we mark “N/A” or “?”. Please refer to the official Unitree documentation or contact us for current details.

Unitree Go2 Physical / Core Specs (Go2 Air baseline)

Mechanical Specification
Dimensions (standing)	70 × 31 × 40 cm
Dimensions (crouching)	76 × 31 × 20 cm
Weight (with battery)	About 15 kg
Materials	Aluminum alloy + high-strength engineering plastic
Electronic Parameters
Voltage	28V–33.6V
Working maximum power	About 3000 W
Knee Joint Parameters
Aluminum Knee Joint Motor	12 set
Body Range of motion	−48°~+48° (max)
Thigh Range of motion	−200°~+90° (max)
Shank Range of motion	−156°~−48° (max)
Intra-joint circuit (knee)	✓
Joint heat-pipe cooler	✓
Force Sensor Parameters
Super-wide-angle 3D LiDAR	✓
HD wide-angle camera	✓
Feature List
Basic action set	✓
Upgraded intelligent OTA	✓
RTT-2 image transmission	✓
Graphical programming	✓
Front lamp	✓
Wireless	Wi-Fi 6 (dual-band) + Bluetooth 5.2/4.2/2.1
Intelligent detection & avoidance	✓

Unitree Go2 Walking Models

The walking Go2 lineup is one core robot offered in different tiers. Go2 Air is the entry, app-driven version for demos and basic learning. Go2 Pro increases speed, torque, and following/tracking features. Go2 X adds higher-end sensing and capabilities for more demanding work. Go2 EDU unlocks full development access (SDK / ROS 2 support, extra I/O, onboard compute like NVIDIA Orin) for labs, research groups, and custom autonomy work.

Model	Go2 AIR	Go2 PRO	Go2 X	Go2 EDU Standard (EDU-U1)	Go2 EDU Plus (EDU-U2)	Go2 EDU Plus Mid-360 (EDU-U3)	Go2 EDU Plus Hesai XT16 (EDU-U4)
Availability per Region
USA / Canada	RB-Unt-06	RB-Unt-05	RB-Unt-172	RB-Unt-04	RB-Unt-22	RB-Unt-38	RB-Unt-23
Europe	RB-Unt-09	RB-Unt-08	RB-Unt-173	RB-Unt-07	RB-Unt-30	RB-Unt-26	RB-Unt-44
United Kingdom	RB-Unt-19	RB-Unt-20	─	─	─	─	─
Japan	RB-Unt-06	RB-Unt-05	─	─	─	─	─
Performance Parameters
Payload	~7 kg (MAX ~10 kg)	~8 kg (MAX ~10 kg)	~8 kg (MAX ~12 kg)	~8 kg (MAX ~12 kg)	~8 kg (MAX ~12 kg)	~8 kg (MAX ~12 kg)	~8 kg (MAX ~12 kg)
Speed	0 ~ 2.5 m/s	0 ~ 3.5 m/s	0 ~ 3.7 m/s (MAX ~5 m/s)	0 ~ 3.7 m/s (MAX ~5 m/s)	0 ~ 3.7 m/s (MAX ~5 m/s)	0 ~ 3.7 m/s (MAX ~5 m/s)	0 ~ 3.7 m/s (MAX ~5 m/s)
Max Climb Drop Height	about 15 cm	about 16 cm	about 16 cm	about 16 cm	about 16 cm	about 16 cm	about 16 cm
Max Climb Angle	30°	40°	40°	40°	40°	40°	40°
Basic Computing Power	─	8-core High-performance CPU	8-core High-performance CPU	8-core High-performance CPU	8-core High-performance CPU	8-core High-performance CPU	8-core High-performance CPU
Max Torque	─	about 45 N·m	about 45 N·m	about 45 N·m	about 45 N·m	about 45 N·m	about 45 N·m
Force Sensor Parameters
Wireless Vector Positioning Tracking Module	─	✓	✓	✓	✓	✓	✓
Foot-end force sensor	─	─	─	✓	✓	✓	✓
Feature List
Auto-scaling strap	─	✓	─	─	─	─	─
4G module (with GPS)	─	✓	✓	✓	✓	✓	✓
Voice Function(s)	─	✓	✓	✓	✓	✓	✓
ISS 2.0 intelligent side-follow system	─	✓	✓	✓	✓	✓	✓
Charging Pile Compatibility	─	─	✓	✓	✓	✓	✓
Secondary development(s)	─	─	✓	✓	✓	✓	✓
Accessories
Manual controller	optional	optional	✓	✓	✓	✓	✓
High computing power module	─	─	─	NVIDIA Orin Nano / 40 TOPS	NVIDIA Orin NX / 100 TOPS	NVIDIA Orin NX / 100 TOPS	NVIDIA Orin NX / 100 TOPS
Depth Camera	─	─	─	✓	✓	✓	✓
LiDAR package	─	─	─	─	─	3D LiDAR Mid-360	3D LiDAR Hesai XT16
Navigation algorithms	─	─	─	─	─	Included	Included
Servo arm option	─	─	─	Optional (coming soon)	Optional	Optional	Optional
Smart battery	standard 8000 mAh	standard 8000 mAh	standard 8000 mAh	long endurance 15000 mAh	long endurance 15000 mAh	long endurance 15000 mAh	long endurance 15000 mAh
Battery life	About 1–2h	About 1–2h	About 1–2h	About 2–4h	About 2–4h	About 2–4h	About 2–4h
Charger	standard 33.6V 3.5A	standard 33.6V 3.5A	standard 33.6V 3.5A	fast charge 33.6V 9A	fast charge 33.6V 9A	fast charge 33.6V 9A	fast charge 33.6V 9A
Warranty period	6 months	1 year	1 year	1 year	1 year	1 year	1 year

Unitree Go2-W (Wheeled Hybrid)

Go2-W keeps the legged platform but adds powered wheels on the feet (7" pneumatic tires). It can roll quickly on smooth ground, then still step over gaps or small obstacles using its legs. Typical top speed is around 2.5 m/s on flat surfaces, with a working payload on the order of several kilograms (often ~8 kg, peak ~12 kg depending on configuration). Variants layer in compute (Jetson Orin), LiDAR, PTZ/thermal, or inspection-focused sensing.

	Go2-W Standard (Go2-W-U1)	Go2-W Plus (Go2-W-U2)	Go2-W Ultimate Pkg (Go2-W-U4)	Go2-W Inspection Pkg (Go2-W-U5)	Go2-W Smart Pkg (Go2-W-U3)
Availability per Region
USA / Canada		RB-Unt-120	RB-Unt-119	RB-Unt-114
Europe		RB-Unt-113	RB-Unt-111	RB-Unt-126
United Kingdom	─	─	─	─	─
Japan	─	─	─	─	─
Compute module / TOPS	NVIDIA Orin Nano / 40 TOPS	NVIDIA Orin NX / 100 TOPS	NVIDIA Orin NX / 100 TOPS	NVIDIA Orin NX / 100 TOPS	NVIDIA Orin NX / 100 TOPS
Depth camera	Intel RealSense D435i (included)	Intel RealSense D435i (included)	Intel RealSense D435i (included via U2 base)	─	Intel RealSense D435i (included)
3D LiDAR	─	─	Hesai XT16 (with navigation algorithms & support)	Inherits XT16 from U4	Mid-360 (with navigation algorithms & support)
PTZ / gimbal	─	─	─	Dual-light head, 3-axis stabilized; ±0.01° jitter; Pitch −90°~+25°; Yaw −270°~+270°; Roll −45°~+45°	─
Thermal imaging	─	─	─	640×512 · 8–14 μm; ranges −20~+150 °C / 50~+550 °C; ±2 °C / ±5 °C	─
Servo robotic arm D1	Optional	Optional	Optional	Not supported	Optional
Package / services note	—	—	—	Hardware platform only; supports customer secondary development. No customization, mapping, management platform, or onsite implementation services included.	—

What These Robots Can Do

Even though they look like sci-fi, the Go2 series is already useful in the real world:

• Navigate diverse terrain: Indoor floors, ramps, parking lots, grass, light gravel.
• Carry payloads: They can carry several kilograms of sensors, tools, or test hardware (often in the ~5–7 kg working range; peak values are higher on some models).
• Autonomous path planning: With depth cameras and LiDAR, many variants can map, localize, and avoid obstacles.
• Remote / teleoperation: Drive the robot in real time using the handheld controller or the mobile app, view live video, and capture data.

What They Cannot Do

To avoid disappointment, here are some things these robots are not meant for (yet):

• Heavy lifting: They’re not forklifts, and they’re not for carrying a person.
• Fully unsupervised work: You still plan the mission, monitor the feed, and interpret the data.
• Extreme environments: Harsh heat, radiation, underwater, etc. require special hardware.
• Unlimited runtime: Standard packs are typically about 1–2 hours; the larger EDU-style packs stretch that, but you still need swaps / charging.

What’s Next

The Unitree Go2 family spans education, research, inspection, and security use cases — from “teach me robotics” all the way to “stream thermal video from a patrol at night.” They’re extremely capable tools, but they’re not drop-in human replacements. Expect setup, training, and supervision, especially in dynamic / public environments.

If you’re interested in biped / humanoid platforms, Unitree also offers human-scale robots (walking on two legs) for advanced development. You can review those models here: [link to humanoid comparison].

Still have questions? Contact us and tell us what you’re trying to do — surveillance, research lab work, hazard inspection, public demo, etc. We’ll help you choose the right configuration and explain what’s realistic.