Gangben L2

In production
20–40 kg
Security and surveillance
Research and development
Logistics

Key figures as stated by the manufacturer

6 of 6 stated Imperial unitsMetric units

Weight 21kg46.3lbOur conversion from 21 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.A
Payload, walking approximately 16kgapproximately 35.3lbOur conversion from 16 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.A
Runtime 210–330minWarning: load condition not statedA
Max speed 11.52km/h7.16mphOur conversion from 11.52 km/h. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.A
IP rating IP66A
Indicative price at least 5,952USDat least 39,999CNYA

Deviations and variants in the key figures (5)

Weight

NoteExplicit (includes battery). The row has NO 'approx.' mark, unlike the measurements just above it in the same table (same pattern as Gangben L1, corrected there on self-check - checked here from the start after that same error).

Payload, walking

NoteMaximum load.

Runtime

Caveat5.5h unloaded / 3.5h full load. Qualitative load condition (unloaded/full), no kg figure for "full load" — hence the load condition is stated as not disclosed rather than a guessed mass figure. A range is also disclosed; the schema has no range field.

Max speed

NoteA separate limit speed of 5 m/s is also disclosed — not used as the main value, same principle as L1.

Indicative price

CaveatMeans 'from'/'starting at': the base-configuration price; options (e.g. the optional charging station above) are added on top.

Manufacturer's own photo.

Intended use, per the manufacturer

The manufacturer’s words

Security patrol

Research and education

Short-distance delivery

Source: genisomai.com · Retrieved 2026-08-24

From the section headed "next application scenario, already in place". The manufacturer’s own scenario labels map as follows: security patrol -> security and surveillance; research and education -> research and development; short-distance delivery -> logistics.

This category is not our assessment.

Every field in the schema

23 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	21kg46.3lbOur conversion from 21 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A NoteExplicit (includes battery). The row has NO 'approx.' mark, unlike the measurements just above it in the same table (same pattern as Gangben L1, corrected there on self-check - checked here from the start after that same error).
Length	approximately 72cmapproximately 28.3inOur conversion from 72 cm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A NoteStanding measurement, length×width×height, approx. — the axes are labelled explicitly by the manufacturer.
Width	approximately 39cmapproximately 15.4inOur conversion from 39 cm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A
Height	approximately 48cmapproximately 18.9inOur conversion from 48 cm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A NoteThe prone (lying-down) measurement is approx. 780×460×190mm; the schema has no field for that state.
Degrees of freedom	12DoF	A CaveatNumber of joint motors, not explicitly "degrees of freedom". Same interpretation as L1 and the Unitree Go2.
Payload, walking	approximately 16kgapproximately 35.3lbOur conversion from 16 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A NoteMaximum load.
Payload, standing	150kg331lbOur conversion from 150 kg. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A NoteIn the spec table, confirmed by the same figure in the marketing text — two places on the same page, in agreement.
Max speed	11.52km/h7.16mphOur conversion from 11.52 km/h. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A NoteA separate limit speed of 5 m/s is also disclosed — not used as the main value, same principle as L1.
Max slope	40°	A NoteMaximum climbable slope angle, confirmed by the homepage capability card.
Single obstacle	70cm27.6inOur conversion from 70 cm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A NoteLabel: 70cm vertical obstacle-crossing height, from the page’s capability card — kept separate from stair_step_continuous, which carries a different, lower figure in the structured spec table. Same two-field pattern as Deep Robotics X30/B2.
Stair step, continuous	22cm8.66inOur conversion from 22 cm. The manufacturer does not state an imperial figure itself, so the conversion has no source of its own.	A NoteLabel: continuous stair-climbing height, in the structured spec table — lower than the single-obstacle figure (70cm), as expected for two different measurements.
IP rating	IP66	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	756Wh	A Note756Wh high-capacity battery, from the page’s capability card. See the top note on the separate "15000mAh" figure in the accessories list — not used to calculate Wh, only noted as found without contradiction.
Runtime	210–330minWarning: load condition not stated	A Caveat5.5h unloaded / 3.5h full load. Qualitative load condition (unloaded/full), no kg figure for "full load" — hence the load condition is stated as not disclosed rather than a guessed mass figure. A range is also disclosed; the schema has no range field.
Hot-swap battery	not stated
Charge time	90min	A NoteCharging time.
Docking station	yes	A NoteThe accessories list has TWO rows: a charging dock, standard equipment (same as L1 has) AND, separately, a charging station including autonomous return-to-charge, OPTIONAL. So L2 has both a standard charging dock AND a paid upgrade to autonomous return-to-dock — docking_station: yes covers at minimum the former; the autonomous-recharge function specifically is only confirmed as optional, not standard.
Sensing and autonomy
LiDAR	not stated
Cameras	Stereo camera, 2× 2.07 MP	A
Onboard compute	8-core CPU, up to 86 TOPS	A NoteFrom the structured spec table, combined with the homepage capability card’s "up to 86 TOPS compute platform" — both from genisomai.com, not cross-confirmed against each other beyond being on the same domain.
ROS 2	not stated	B NoteINVESTIGATED AND DELIBERATELY NOT SET TO YES, AFTER A SELF-CHECK CAUGHT INSUFFICIENT EVIDENCE. L2’s own product page names a "next-generation RoamerX intelligent navigation system" as a feature, and the manufacturer’s GitHub repo "genisom_roamerx_open" explicitly requires "ROS2 Humble Hawksbill". An earlier draft of this entry set ros2: yes on that link. On re-reading the repo’s OWN README, however, its "Hardware Deployment" section reads only "TODO" — the manufacturer itself states that the link between this open-source repo and a physical, shipping product is NOT documented yet. A name match ("RoamerX") plus a repo that itself says "TODO" for hardware rollout is a guess, not a measurement — rule 1. Corrected to not disclosed.
SDK languages	not stated
Autonomy level	AI reinforcement-learning motion control (standard); UWB; autonomous following; intelligent obstacle avoidance; OTA updates; supports further development	A NoteQualitative list from the manufacturer’s feature section, not a rating on a scale.
Payload and expansion
Mounting interface	not stated
Power out	not stated
Data ports	`USB3.0 x2` `M12 17PIN x1` `M12 18PIN x1` `4G card slot x1`	A Note5 aviation connectors in total: 2× USB3.0 + 1× M12 17PIN + 1× M12 18PIN + 1× 4G card slot = 5 — all five are named in the source, none unspecified.
Commercial
Indicative price	at least 5,952USDat least 39,999CNYA	CaveatMeans 'from'/'starting at': the base-configuration price; options (e.g. the optional charging station above) are added on top. Price shown in USD, converted using the European Central Bank reference rate for 31/08/2026. Rate: Den Europæiske Centralbank, Euro foreign exchange reference rates, 31/08/2026.
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.

Notes

The manufacturer's marketing text implies LiDAR and GNSS support, but the structured specification table lists only an IMU and a stereo camera — LiDAR is marked not disclosed, not assumed.

The manufacturer’s own page

The manufacturer’s original product page for this model.

Open the manufacturer’s page for Gangben L2

https://www.genisomai.com/product-robot/L2

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Sources

A Manufacturer product page. www.genisomai.com/product-robot/L2 · Retrieved 2026-08-24
B github.com/zsibot/genisom_roamerx_open · Retrieved 2026-08-24

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.