KLEENBOT C40 vs KLEENBOT C55 vs BUTLERBOT W3

Measure	KLEENBOT C40	KLEENBOT C55	BUTLERBOT W3
Maker	Keenon Robotics	Keenon Robotics	Keenon Robotics
Country	China	China	China
Status	Commercial	Commercial	Commercial
First shown	2025-04-02	2025-04-02	2024-05
Released	2025-05	2025-11	2024
Price	—	—	—
Height	69 cm	108 cm	108 cm
Weight	70 kg	150 kg	48 kg
Top speed	—	—	2.9 km/h
Payload	—	—	20 kg
Battery	12 h best	5 h	12 h best
Joints (DoF)	—	—	—
Moves on	Wheels	Wheels	Wheels
Hands	none	none	none
Built for	commercial floor cleaning, sweeping, vacuuming and scrubbing	sweeping and scrubbing medium to large floors	hotel room delivery, multi-floor delivery by elevator
Units built or sold	—	—	—

Figures are what makers or the press published; “—” means not published. Each robot's profile links to its sources.

Popular comparisons

Well-known robots paired only when they move the same way, are at the same stage and share a main job. How we choose

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• FX Aegis vs Vision 60
• ANYmal D vs Vision 60
• FX Aegis vs CyberDog 2
• Kurier (Kuryer) ground robotic complex vs TerMIT (Termit)
• ROOK vs HR-Sherpa (Multi-Purpose UGV)

How comparisons are chosen

Every robot page, the suggestions above and the popular list follow the same rules, so a comparison is never a random pick. You can still compare any two robots yourself with the menus at the top.

1. Like with like. Humanoids are compared with humanoids, and a machine only with its own type: a robot dog with robot dogs.
2. Another maker. A maker’s own models are listed on its page instead.
3. Moves the same way. Walking robots with walking robots, wheeled with wheeled, fixed upper bodies with fixed upper bodies.
4. Same stage. Robots on sale or in pilots with each other; prototypes with prototypes; research platforms with research platforms; past robots with robots of their time.
5. A shared main job. At least one job in common, such as factory work, retail or care. Broad labels like research, education or general-purpose only count when a robot has nothing more specific.
6. Close in time, size and price. First shown within two years, in the same size class (full size from 150 cm, mid size 100 to 149 cm, small under 100 cm) and priced within three times of each other when both prices are published. If fewer than two robots pass, these three are relaxed and the page says the matches are the nearest ones.

Under each peer’s name, the page lists which of these it shares. Closer size and price, and more jobs in common, put a robot higher in the list.