Unitree RoboticsChina2023

B2

In production
Over 40 kg
Industry

Key figures as stated by the manufacturer

5 of 6 stated · 1 gap Imperial unitsMetric units

Weight approximately 60kgapproximately 132lbOur conversion from 60 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.A
Payload, walking more than 40kgmore than 88.2lbOur conversion from 40 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.A
Runtime more than 240minWarning: at load 20 kgA
Max speed more than 21.6km/hmore than 13.4mphOur conversion from 21.6 km/h. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.A
IP rating IP67A
Indicative price not stated

Deviations and variants in the key figures (4)

Weight

CaveatTotal weight (battery included) — the figure is WITH the battery. AlienGo's weight is without the battery; the two figures are not comparable without that context.

Runtime

NoteThree runtime figures on the same page: >5 h with no load (>20 km), >4 h at 20 kg (>15 km), and Battery life 4-6h with no load stated. The only one with a load condition is used here.

Max speed

CaveatThe manufacturer's footnote [1]: realized in special configurations, in practice there is a speed limit for security purposes. The operationally relevant speed is not stated on the page.

Indicative price

Noteshop.unitree.com shows price:10000000 (= $100,000 USD) — exactly the same amount as A2 — right next to the text Contact us for the real price, on B2's own listing. It is a placeholder and is not carried as a price.

Manufacturer's own photo.

Intended use, per the manufacturer

The manufacturer’s words

Robot - Industry

Robot dog - industrial grade

Source: unitree.com · Retrieved 2026-08-19

The manufacturer's own product navigation, the group B2 belongs to.

This category is not our assessment.

Every field in the schema

21 of 33 fields stated Imperial unitsMetric units

Imperial figures are our own conversion unless the manufacturer states an imperial figure itself. The source letter always belongs to the metric figure — a conversion has no source of its own.

The letter points to the source at the foot of the page. Fields without a figure are dashed: the manufacturer does not state them — that is not the same as zero, and not the same as no.
Field	Value	Source and caveats
Physical
Weight	approximately 60kgapproximately 132lbOur conversion from 60 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A CaveatTotal weight (battery included) — the figure is WITH the battery. AlienGo's weight is without the battery; the two figures are not comparable without that context.
Length	approximately 109.8cmapproximately 43.2inOur conversion from 109.8 cm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A
Width	approximately 45cmapproximately 17.7inOur conversion from 45 cm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A
Height	approximately 64.5cmapproximately 25.4inOur conversion from 64.5 cm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A NoteFolded (Lying Prone) is stated as about 880 x 460 x 330 mm. The schema has no field for folded dimensions.
Degrees of freedom	not stated
Payload, walking	more than 40kgmore than 88.2lbOur conversion from 40 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A
Payload, standing	at least 120kgat least 265lbOur conversion from 120 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A NoteThe manufacturer writes the character U+2265. Two different operators on the same page: > on walking load, >= on standing. B2-W states the same 120 kg with no operator at all.
Max speed	more than 21.6km/hmore than 13.4mphOur conversion from 21.6 km/h. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A CaveatThe manufacturer's footnote [1]: realized in special configurations, in practice there is a speed limit for security purposes. The operationally relevant speed is not stated on the page.
Max slope	more than 45°	A
Single obstacle	40cm15.7inOur conversion from 40 cm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A NoteThe page states both Obstacle crossing: Max 40cm and Climb up and down stairs of 40cm in forward direction.
Stair step, continuous	20–25cm7.87–9.84inOur conversion from 20–25 cm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A NoteRange kept. 20~25 cm is not 22.5 cm.
IP rating	IP67	A
Operating temperature, low	-20°C-4°FOur conversion from -20 °C. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A
Operating temperature, high	55°C131°FOur conversion from 55 °C. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A
Power
Battery	2,250Wh	A CaveatThe manufacturer's own arithmetic does not check out: the same sentence states Battery capacity 45Ah(2250Wh), voltage 58V. 45 x 58 = 2610 Wh. The printed figure is 13.8% below the calculated one (16.0% with 2250 as the denominator). We do not correct it — 2250 Wh is the manufacturer's figure.
Runtime	more than 240minWarning: at load 20 kg	A NoteThree runtime figures on the same page: >5 h with no load (>20 km), >4 h at 20 kg (>15 km), and Battery life 4-6h with no load stated. The only one with a load condition is used here.
Hot-swap battery	yes	A NoteThe manufacturer states battery supports quick change.
Charge time	not stated
Docking station	yes	A NoteOptional: supports autonomous charging solutions (optional).
Sensing and autonomy
LiDAR	not stated	A NoteThe page states 3D LiDAR x1 — type without model. Under D4's provisional rule, type without model does not count as filled. If D4 flips, the field is filled.
Cameras	depth camera x2 + optical camera x2	A NoteThe manufacturer adds: varies with different configurations.
Onboard compute	Intel Core i5 (platform) / i7 (development); optional i7 or NVIDIA Orin NX, up to 3 units	A
ROS 2	not stated
SDK languages	not stated
Autonomy level	not stated
Payload and expansion
Mounting interface	not stated
Power out	12 V x4; 5 V x1; 24 V x4; BAT x1	A NoteVoltage given, wattage not. The field is only half stated and cannot be compared with Spot's 35-58.8 V / 150 W per port.
Data ports	`1000M-Base-Ethernet x4` `USB 3.0 x4`	A
Commercial
Indicative price	not stated	Noteshop.unitree.com shows price:10000000 (= $100,000 USD) — exactly the same amount as A2 — right next to the text Contact us for the real price, on B2's own listing. It is a placeholder and is not carried as a price.
EU
CE stated	not stated	Records only what the manufacturer states regarding CE marking.
FCC stated	not stated
UL stated	not stated
CCC stated	not stated

Stair step and payload each exist in two variants. Only compare fields with the same label.

The manufacturer’s own page

The manufacturer’s original product page for this model.

Open the manufacturer’s page for B2

https://www.unitree.com/b2

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Sources

A Manufacturer product page. www.unitree.com/b2 · Retrieved 2026-08-19
B shop.unitree.com/products/unitree-b2 · Retrieved 2026-08-19
C www.unitree.com/ · Retrieved 2026-08-19

One line per source, not per figure: a source has one retrieval date. The letter beside a figure points to the line it came from.