Unitree Robotics · robot dog
B2
A 60 kg IP67 industrial quadruped that carries over 40 kg while walking (120 kg standing) and runs 4-6 hours. It replaced the B1.
- Price
- —not published (Unitree shop lists $100,000, likely a placeholder)
- Height
- 65 cmTaller than 68%
- Weight
- 60 kgHeavier than 85%
- Payload
- 40 kgCarries more than 85%
- Speed
- 21.6 km/hFaster than 91%
- Battery
- 6 hRuns longer than 100%
Not sure this is the one? Find the best robot for your job Starts with: patrol and inspect. Five more quick questions.
Why it matters
One of the fastest commercial industrial quadrupeds, rated above 6 m/s.
Real-world use
Unitree sells fire-rescue versions; a September 2025 Bluetooth vulnerability affecting B2 was reported.
Maker
Unitree RoboticsCompany · founded 2016 · Hangzhou, ChinaPublic company: listed on Shanghai's STAR Market on 19 Aug 2026 (688836.SH), raising about 6.1 billion yuan at 150.80 yuan a share; earlier…
How it stacks up
Against other robot dogs that publish the figure. Pick a measure.
B2 is taller than 68% of the 22 other robot dogs that publish a height. Bars show the 7 closest in date.
B2 is heavier than 85% of the 41 other robot dogs that publish a weight. Bars show the 7 closest in date.
B2 is faster than 91% of the 34 other robot dogs that publish a speed. Bars show the 7 closest in date.
B2 carries more than 85% of the 27 other robot dogs that publish a payload. Bars show the 7 closest in date.
B2 runs longer than 100% of the 25 other robot dogs that publish a battery. Bars show the 7 closest in date.
Not published by the maker: joints, price.
Public attention
How much public attention B2 gets, from open data.
- No Wikipedia article of its own yet
- 2 news stories from reputable press listed on this page
Measures how much people read and write about a robot, not how good it is. Measured 2026-10-14; same method for every robot. How it is measured
What’s inside
The parts the company has talked about publicly.
- Movement
- Walks on legs
- How it runs
- Assisted. It is usually driven with a remote controller while it balances and handles rough ground itself; autonomous inspection needs extra software from integrators.
- Chip
- Jetson Orin NX (NVIDIA)Optional Jetson Orin NX (up to three extra computers) on top of Intel Core i5/i7.
- Actuators & motors
- 12 Unitree joint motors; 360 N.m peak joint torque (Unitree says 170% better joint performance than its earlier industrial dog)
- Sensors & vision
- 3D lidar x1, depth cameras x2, optical cameras x2 (varies by configuration); fire versions add 360-degree cameras and gas sensors
- Compute
- Intel Core i5 (platform) plus Intel Core i7 (user development) standard; optional Intel Core i7 or NVIDIA Jetson Orin NX, up to three units
- Battery & power
- 45 Ah (2,250 Wh) at 58 V; more than 5 h and 20 km unloaded; quick-change battery, optional autonomous charging
- Materials & build
- IP67
- Other details
- About 60 kg with battery; top speed about 6 m/s
Lineage
Every Unitree Robotics machine in order.
XDog2016Retired
Laikago2017Discontinued
AlienGo2019Discontinued
A12020Discontinued
B12021Discontinued
Go12021Discontinued
Go22023In service- B22023Commercial
- No public photo yetWe only show photos we're allowed to useRifle-armed robot dog (Golden Dragon 2024)2024Prototype
Go2-W2024Commercial
B2-W2024Commercial- No public photo yetWe only show photos we're allowed to useA2 (Stellar Hunter)2025Commercial
As22026Commercial
Unitree Robotics also makes 8 humanoids. See every Unitree Robotics robot
Watch B2
Made, sold and where
Unit counts are usually company figures; analysts often disagree.
- Price
- Not publishednot published (Unitree shop lists $100,000, likely a placeholder)
- How to get one
- No official buying page found
- Sold or delivered
- Sold for industrial use; units not published
- Where it is sold or used
- Hangzhou, China
- Customers and pilots
- Qingdao firefighting and rescue support team (fire version, reported 2025); US reseller Robostore is adapting a fire-fighting version
News
The latest 2, newest first. Summaries are ours; tap through for the original.
- Long Island firm builds US firefighting B2
Robostore said its B2-based fire robot with a water cannon would cost about $150,000.
New York Post via AOL - B2 fire dog deployed in Qingdao
Core77 reported a firefighting B2 with gas sensors and self-drenching in use with Qingdao fire rescuers.
Core77
Side by side with its peers
Picked by the same rules for every robot: another maker’s robot that moves the same way, is at the same stage and does at least one of the same main jobs, first shown within two years. Closer size and price rank higher. How we choose
| Measure | B2Unitree Robotics |  Jueying X30DEEP RoboticsSame job: inspection · Both walk · Both on sale or in pilots · Similar size |  RBQ-10Rainbow RoboticsSame job: inspection · Both walk · Both on sale or in pilots · Similar size |  Vision 60Ghost Robotics (majority-owned by LIG Nex1 since 2024)Same job: inspection · Both walk · Both on sale or in pilots · Similar size |
|---|---|---|---|---|
| First shown | 2023-11-03 | 2023-10-17 | 2024 | 2021-05 |
| Status | Commercial | Commercial | Commercial | Commercial |
| Height | 65 cm | 47 cm | 62 cm | 69 cm |
| Weight | 60 kg | 56 kg | 42 kg | 51 kg |
| Joints | — | — | — | 12 |
| Speed | 21.6 km/h | 14.4 km/h | 14 km/h | 9 km/h |
| Payload | 40 kg | — | 15 kg | 10 kg |
| Battery | 6 h | 4 h | 2 h | 3.1 h |
| Price | — | — | — | $100,000 |
Sources
Figures come from the maker. Every link below backs something on this page.
Photos and logos only identify each robot and its maker. Simbeing is not affiliated with, sponsored by or endorsing any company, and nothing here is advertising. Figures are for statistics only and are not advice of any kind. Terms of use