Unitree Robot Dogs
Unitree robot dogs form the deepest quadruped lineup in robotics, spanning the consumer and research Go2, the lightweight industrial AS2, the workhorse A2, the waterproof veteran B1, the extreme environment flagship B2 and the research classic AlienGo, plus the Go2-W, AS2-W and B2-W wheeled variants, from the manufacturer whose self developed motors and LiDAR lead the global quadruped market.
Unitree Robot Dogs
No manufacturer has put more legged robots into the world, and no lineup shows it like this one. Unitree robot dogs span six current platforms and every tier the category has invented: the Go2 in homes, classrooms and laboratories worldwide, the AS2 that put industrial credentials in a carry case, the A2 running daily routes on hot swap batteries, the waterproof veteran B1 that founded the industrial line, the B2 flagship built for the sites that break everything else, and the AlienGo, the 2019 research classic still anchoring lab fleets, with wheeled Go2-W, AS2-W and B2-W variants crossing the line into hybrid ground.
The line's dominance is structural. Unitree builds its own joint motors, batteries and 4D LiDAR, the vertical integration that repeatedly collapsed quadruped prices while raising specifications, and its dogs did the category's public relations personally: viral agility from the AlienGo era, the Go2's Hangzhou Asian Games celebrity turn carrying discus and javelin, synchronized gala troupes before audiences of hundreds of millions. Commercially, the quadruped business remains the company's proven engine, roughly 42 percent of revenue through the first nine months of 2025 per the IPO prospectus, the mature market leader funding the humanoid era beside it.
Spanning the full quadruped category with its own accessories depth, the complete range of Unitree robot dogs for sale can be explored through this page.
Background
From XDog to a six platform line
The lineup is one conviction compounding since 2016: founder Wang Xingxing's student built XDog thesis that legged robots could be mass products. Laikago proved the engineering; the AlienGo made it famous and gave research its standard bench; the Go1 broke the consumer price barrier in 2021 before retiring, delisted and comprehensively superseded once the Go2 arrived; the B1 took the line to industrial duty behind IP68 sealing the same year; and the modern generation filled every remaining gap, the A2 workhorse in 2025, the B2 flagship, and in February 2026 the AS2, the lightweight industrial tier that completed the ladder. Today's six platforms are that history still on sale.
A dog for every tier, deliberately
The line's breadth is strategy, not sprawl: each machine owns a defined severity and budget tier, consumer and research, lightweight professional, daily industrial, wet and value industrial, extreme environment, laboratory classic, so that buyers climb a ladder rather than outgrow a brand, with accessories, SDK lineage and mission software carrying forward at every rung.
The Unitree Robot Dog Lineup
Unitree Go2: The World's Robot Dog
The Go2 is the planet's most popular quadruped: roughly 15 kilograms sensing through Unitree's L2 4D LiDAR, a 360 by 96 degree hemispherical field from 0.05 meters, moving on simulation trained gaits with GPT class voice interaction and ISS 2.0 following, across an Air, Pro, X and EDU trim ladder whose top tier carries Jetson Orin, full SDK and ROS 2 into the largest community in legged robotics, with the wheeled Go2-W extending to searchlight and thermal equipped response builds.
Unitree AS2: The Lightweight Industrial
The AS2, launched February 2026, broke the rule that industrial dogs start at 40 kilograms: 18 kilograms carrying 90 newton meter joints, roughly double the Go2's dynamics, speeds past 5 meters per second, a 65 kilogram standing load demonstrated under a 105 kilogram adult, 15 kilogram working payloads over 13 kilometer ranges and a minus 20 to 50 Celsius envelope, with ISS 3.0 following, an onboard embodied model, Jetson Orin NX development in Pro and Edu trims and the AS2-W wheeled variant.
Unitree A2: The Industrial Workhorse
The A2, the 2025 Stellar Explorer, owns the daily route: 37 kilograms carrying 25 kilograms on the move and 100 standing, up to 5 meters per second across 45 degree slopes and meter class obstacles, dual front and rear 3D LiDAR for 360 degree awareness, and its defining feature, dual 9,000 milliamp hour parallel batteries that hot swap without stopping, more than five hours and 20 kilometers per charge and no ceiling with a rotation, on an IP56 chassis with IP67 internals from minus 20 to 55 Celsius.
Unitree B1: The Waterproof Veteran
The B1, Unitree's first industrial quadruped and still in the catalog since 2021, holds the value and wet work tier: approximately 50 kilograms behind the family's deepest formal sealing at IP68, immersion class protection for flooded, rain soaked and washdown environments, with around 20 kilogram walking and 80 kilogram standing loads, veteran pricing and the mature parts and documentation base, B1 motors remain in the accessory catalog, that years of fielded service produce.
Unitree B2: The Extreme Environment Flagship
The B2 is the summit: 60 kilograms, IP67 sealed, on 360 newton meter joints representing a 170 percent leap over the B1, running to 6 meters per second as the fastest industrial quadruped built, carrying to 40 kilograms past four hours per quick change battery with optional autonomous charging, thinking on 275 TOPS of Jetson AGX Orin, and switching between legged and wheeled forms as the B2-W, for the mining, energy and defense adjacent sites that filter machines.
Unitree AlienGo: The Research Classic
The AlienGo is the line's citation hardware: the 2019 mid size research platform, twelve 40 newton meter protected joints, 10 to 13 kilogram payloads, dual depth cameras with posture and face recognition and gesture locked following, and up to 4.6 hours on its swappable 317 watt hour battery, still sold because laboratories keep specifying its maturity, and still the classic host for the Z1 robotic arm in mobile manipulation work.
Unitree Go1: The Retired Pioneer
The Go1, the 2021 machine that first priced robot dogs for consumers from around 2,700 dollars, is the lineup's honored retiree: delisted and superseded by the Go2 on every axis, its batteries still in the accessory catalog for the installed base, its legacy running through every entry tier the company now sells.
Model Comparison
| Specification | AlienGo | Go2 | AS2 | A2 | B1 | B2 |
|---|---|---|---|---|---|---|
| Status / Launch | Current, 2019 | Current | Current, 2026 | Current, 2025 | Current, 2021 | Current flagship |
| Weight | Mid size | ~15 kg | ~18 kg | ~37 kg | ~50 kg | ~60 kg |
| Walking Payload | 10–13 kg | ~7–8 kg by trim | ~15 kg | 25 kg | ~20 kg | Up to 40 kg |
| Standing Load | — | — | 65 kg | 100 kg | ~80 kg | Higher class |
| Max Speed | >1.5 m/s | 2.5–3.5 m/s by trim | >5 m/s | Up to ~5 m/s | ~1.8 m/s class | ~6 m/s (class record) |
| Joint Torque | 40 N·m | 45 N·m | 90 N·m | 180 N·m | First industrial gen | 360 N·m |
| Protection | Lab / controlled | IP54 | IP54 | IP56 / IP67 internals | IP68 | IP67 |
| Temperature | Standard | Standard | −20 to 50 °C | −20 to 55 °C | Outdoor rated | −20 to 55 °C |
| Endurance | 2.5–4.6 h | 1–2 h | 4+ h / >13 km loaded | >5 h / 20 km; hot swap | Industrial duty | 4+ h; autonomous charging option |
| Sensing | Dual depth + VIO | L2 4D LiDAR 360°×96° | LiDAR + HD camera | Dual 3D LiDAR 360° | Camera / LiDAR options | Dual 3D LiDAR |
| Compute | Jetson class options | Jetson Orin (EDU) | Orin NX (dev trims) | 8 core + Intel i7 option | Jetson class options | Jetson AGX Orin, 275 TOPS |
| Wheeled Variant | — | Go2-W | AS2-W | Wheel leg option | — | B2-W |
| Role | Research classic | Consumer, education, research | Lightweight industrial | Daily route workhorse | Wet and value industrial | Extreme environments |
Figures follow published specifications; trims and options vary by configuration and are confirmed at quotation.
Which Unitree robot dog fits which buyer?
The ladder reads by mission weight. First robots, classrooms and research entry take the Go2, Pro for consumers, EDU for laboratories. Professional rounds that one person carries to site take the AS2. Daily industrial routes with real cargo take the A2's hot swap endurance. Wet environments and value industrial fleets take the B1's IP68 at veteran pricing. Sites where the environment is the adversary take the B2. Laboratories wanting payload, maturity and the Z1 arm pairing take the AlienGo. And mixed ground at any tier takes the W variants' wheels. Across all of them, mission software like RoboPatrol and RoboInspect from the robot software catalog turns platforms into working patrol and inspection systems.
Technology Across the Line
Self developed to the last component
Every dog runs Unitree's own joint motors, sold as spare parts down to the Go-M8010-6 and IM6014, its own batteries and its own 4D LiDAR line, the vertical integration behind prices no rival matches and an accessories catalog with genuine component depth.
One sim to real pipeline, six platforms
From the AlienGo's early agility to the AS2's launch demonstrations, the line's gaits come from reinforcement learning at simulation scale, delivered to hardware and improved by OTA across the installed base, the pipeline the humanoid family inherited.
The category's deepest surround
The largest community in legged robotics, SDK and ROS 2 lineage across generations, Unitree support infrastructure and parts continuity reaching back to retired platforms, network effects compounding on the highest installed base in the category.
What are Unitree robot dogs used for?
- Industrial inspection: substation, plant and pipeline rounds across inspection robotics, from AS2 light rounds to B2 extremes.
- Security patrol: perimeter circuits across security robotics at every severity tier.
- Research and education: the default legged platforms of research and educational robotics, Go2 EDU to AlienGo fleets.
- Consumer companionship: the Go2 as the era's mass companion machine across consumer robotics.
- Logistics and site transport: 15 to 40 kilogram carry missions across logistics and industrial ground.
- Emergency and hazardous response: thermal equipped and immersion sealed missions across emergency response robotics.
- Mobile manipulation: the Z1 arm pairings that put hands on legs for research and light work.
- Events and entertainment: the synchronized performers of exhibition and entertainment bookings.
Pricing and Availability
Unitree robot dogs are available for purchase worldwide across all six current platforms, their trims and wheeled variants, from single Go2 units to industrial fleets with charging infrastructure, alongside the quadruped category, the Unitree humanoid line and the full Unitree catalog on Robots International. Unitree robot dog price and cost vary widely by model, trim, options and destination, so buyers seeking Unitree robot dogs for sale should request a current quotation for their requirements. Purchasing inquiries, specification sheets and availability details for those looking to buy Unitree robot dogs can be found on this page.
Frequently Asked Questions
What are Unitree robot dogs?
Unitree robot dogs are the six platform quadruped family of the global market leader: the consumer and research Go2, lightweight industrial AS2, workhorse A2, waterproof veteran B1, extreme environment B2 and research classic AlienGo, plus the Go2-W, AS2-W and B2-W wheeled variants and the retired Go1.
How do Unitree robot dogs work?
They move on Unitree's self developed joint motors under reinforcement learning trained gaits, perceive through the company's own 4D LiDAR and depth camera systems, navigate and map autonomously, follow operators through the ISS system lineage, compute up to 275 TOPS on the flagship and improve continuously by OTA update across every platform.
Why are Unitree robot dogs important?
They built the quadruped market at every tier: the machines that made robot dogs consumer products, research standards and industrial tools, holding the world's largest legged installed base and community while generating roughly 42 percent of Unitree's revenue, the proven engine of the company's whole era.
What are the benefits of Unitree robot dogs?
Key benefits include the best price to capability ratios at every tier, a complete six platform ladder from 15 kilogram companion to IP67 flagship, self developed motors and LiDAR with component level parts supply, wheeled hybrid options at three tiers, the category's deepest community and ecosystem and the supply security of the market leader.
Which Unitree robot dog should a buyer choose?
By mission weight: Go2 for learning, research and companionship, AS2 for carryable professional rounds, A2 for daily industrial routes, B1 for wet environments and value fleets, B2 for extreme sites, AlienGo for mature laboratory work, with the comparison table above mapping every tier.
Which models are current and which are retired?
Six platforms are current, the AlienGo, Go2, AS2, A2, B1 and B2 with their variants; the Go1 is retired, delisted and superseded by the Go2, with its batteries still supported for the installed base, the lineup's only discontinued model.
Where can I buy Unitree robot dogs and what do they cost?
Unitree robot dogs are for sale through Robots International, serving markets worldwide with delivery, customs clearance and support. Because cost varies enormously by model and trim, buyers should request a tailored quotation. Full purchasing details are available on this page.
Summary
Unitree robot dogs are the whole story of quadruped robotics still on sale at once: the AlienGo that made it famous, the Go2 that made it universal, the AS2 that made industry carryable, the A2 running the routes, the B1 still working the wet sites it pioneered, and the B2 surviving the places that retire everything else, with wheels at three tiers, a retired Go1 in honored memory, and self developed motors, LiDAR and parts beneath all of it. Six platforms, one ladder, the largest community in legged robotics and the market leader's economics, the definitive lineup of the robot dog era, and this page its definitive reference point.
v3, August 9, 2026