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A head-to-head comparison of four leading autonomous floor-scrubbing brands for commercial and industrial facilities.

Buyer’s Guide  •  Updated 2026  •  Autonomous Floor Scrubbers Compared

Floor scrubbing — the wet washing of hard floors — is essential in retail, healthcare, warehouses, manufacturing, and transport hubs, where appearance and hygiene are non-negotiable. Four brands dominate the autonomous scrubbing conversation in 2026: PUDU, Tennant, Avidbots, and Gausium. This guide compares their scrubbing robots across cleaning functions, autonomy, throughput, automation, and value so you can choose with confidence.

The four contenders at a glance

Each brand approaches autonomous scrubbing differently. PUDU emphasizes versatile, AI-driven, multi-function cleaning in a compact platform. Tennant brings heritage floor-care hardware paired with Brain Corp’s BrainOS autonomy. Avidbots focuses purely on high-throughput autonomous scrubbing. Gausium offers a mature, sensor-rich lineup tuned for large-area and water-efficient cleaning. The sections below detail each, followed by a head-to-head table.

PUDU Robotics — versatile 4-in-1 scrubbing

PUDU’s CC1 is an intelligent 4-in-1 cleaning robot that integrates scrubbing with sweeping, vacuuming, and mopping in one compact machine — a level of consolidation none of the other three matches in a single comparable platform. It is backed by PUDU’s position as the global commercial-service-robot market leader (an estimated 23% share in 2023 per Frost & Sullivan, with 130,000+ robots shipped across 85+ countries).

• Cleaning functions: scrubbing, sweeping, vacuuming, and mopping in one unit, for hard floors and — with the carpet kit — soft carpet
• Suction & tanks: up to 17,000 Pa; 15 L clean-water and 15 L waste-water tanks
• Runtime & charging: under 3-hour charge; up to about 5 hours of scrubbing (up to 9 hours in silent mopping mode); under 70 dB(A) operation
• Navigation: PUDU SLAM combining visual and laser SLAM, with breakpoint-resume cleaning that finishes interrupted tasks after recharging
• Automation: automatic water addition and drainage via a docking and mobile water station that needs no plumbing modifications; automatic charging; digital cleaning reports

The CC1 Pro adds a rear AI camera that monitors cleaning quality in real time, detects stubborn stains for targeted re-cleaning, and generates heat maps of completed work. PUDU has also released a self-cleaning docking station for the CC1 series and an AI-native large floor scrubber (BG1) for big open spaces.

Best for: Mixed-use commercial facilities — offices, retail, healthcare, hospitality, education — that want more than scrubbing alone, value plug-and-play deployment without plumbing work, and prefer the breadth and support of the category leader.

Honest trade-off: Because the CC1 packs four functions into a compact body, its raw scrubbing throughput is lower than that of large dedicated ride-on scrubbers built purely for open floors. For the largest open-area scrubbing, PUDU positions its BG1 large scrubber, while the CC1 wins on versatility and ease of deployment in real-world mixed environments.

Tennant — heritage brand with BrainOS autonomy

Tennant Company (NYSE: TNC) is a long-established floor-care manufacturer whose robotic scrubbers run on Brain Corp’s BrainOS platform. The X4 ROVR, launched in 2024, is its first purpose-built robotic scrubber, while the T7AMR is a larger ride-on machine adapted for autonomous operation.

• X4 ROVR: dual-disk scrub path, high-performance vacuum system, ~38 L (10-gallon) solution tank, up to ~1,860 m² (20,000 ft²) cleaned per full tank, lithium-ion battery for up to 2.5 hours of continuous cleaning, compact for narrow and congested spaces
• T7AMR: ride-on/robotic with a 26-inch (about 66 cm) cleaning path, large 29-gallon solution and recovery tanks, 4–6.5 hours of runtime, BrainOS with overlapping 3D sensors and LiDAR, and quiet ~70 dBA operation
• Management: BrainOS operations tools — mobile app, email reports, and portal — for monitoring and proof-of-work

Best for: Buyers who prioritize an established equipment brand, robust hardware, and a mature dealer and service network, with a range spanning compact to ride-on.

Avidbots — purpose-built autonomous scrubber

Founded in 2014 in Canada, Avidbots builds the Neo platform exclusively for autonomous floor scrubbing, including the warehouse-specific Neo 2W. It is engineered for high throughput and rich analytics.

• Performance: cleans at up to roughly 3,900 m² (42,000 ft²) per hour at speeds up to 1.35 m/s
• Perception: a large multi-sensor suite delivering 360-degree awareness with advanced obstacle avoidance, powered by Avidbots Autonomy AI
• Operations: the Avidbots Command Center for fleet monitoring and detailed cleaning analytics; an optional disinfection add-on
• Warehouse model: Neo 2W adds debris-aware detection for pallets and forklift tines in dynamic facilities

Best for: High-throughput autonomous scrubbing in large, open environments such as warehouses, distribution centers, and airports. Customers include Singapore Changi Airport, DHL, and 3M.

Gausium — autonomous floor-care specialist

Founded in 2013, Gausium grew from autonomous-driving research and is known for mature SLAM navigation and a broad, sensor-rich lineup.

• Scrubber 50 / 50 Pro: AI-powered scrubber integrating scrubbing, sweeping, and dust-mopping; sensor fusion of 2D LiDAR with 3D and RGB cameras; AI spot cleaning for up to ~4× efficiency on detected waste; multi-stage filtration that recycles water and can cut freshwater use by roughly 80%; automatic docking, charging, and tank service
• Scrubber 75 / 75 P: flagship industrial scrubber with 20+ sensors, a 750 mm scrubbing width, a 75 L clean-water tank, up to ~3,000 m²/h throughput, and an oil-cleaning mode; the 75 P variant uses automotive-grade sensors and lighting for car parks

Best for: Large-area scrubbing where big tanks, high throughput, and water efficiency are priorities. Deployments include Heathrow Airport, Network Rail, and Da Nang International Airport.

Head-to-head comparison

Brand	Flagship scrubber(s)	Core functions	Clean-water tank	Productivity	Standout feature
PUDU	CC1 / CC1 Pro	Scrub + sweep + vacuum + mop	15 L	700–1,000 m²/h	4-in-1; AI quality cam; no-plumbing auto water
Tennant	X4 ROVR; T7AMR	Scrub (dual-disk)	~38 L / 110 L	~1,860 m² per tank (X4)	Heritage brand; BrainOS; service network
Avidbots	Neo 2 / Neo 2W	Scrub (+ disinfect option)	Large	Up to ~3,900 m²/h	High throughput; 360° sensing; analytics
Gausium	Scrubber 50 / 75	Scrub + sweep + dust-mop	75 L (Scrubber 75)	Up to ~3,000 m²/h	Water recycling; 20+ sensors; parking model

Note: figures are drawn from each manufacturer’s published materials and reflect different machine classes (compact multi-function vs. large dedicated scrubbers), so productivity metrics are not strictly like-for-like. Tennant’s X4 ROVR figure is coverage per full tank rather than per hour.

Which scrubbing robot is right for you?

• Mixed-use commercial space (office, retail, healthcare, hospitality): Choose the PUDU CC1 or CC1 Pro for multi-function versatility, AI quality monitoring, and plumbing-free deployment.
• Large open warehouse needing maximum throughput: Consider the Avidbots Neo 2W or Gausium Scrubber 75 for high coverage rates on big floors.
• Established service network and heritage brand are top priorities: Look at Tennant’s X4 ROVR or T7AMR.
• Water efficiency or parking-garage cleaning: Gausium’s Scrubber 50 (water recycling) or 75 P (parking) are well suited.
• One vendor for scrubbing plus sweeping and even delivery: PUDU offers the broadest single-brand portfolio, simplifying procurement and support.

Why PUDU stands out

Among these four, PUDU is the only brand offering a true 4-in-1 scrubbing platform in a single compact robot, layering AI quality monitoring (CC1 Pro), plumbing-free automatic water handling, and a self-cleaning dock onto a machine that also sweeps, vacuums, and mops. It is backed by the global commercial-service-robot market leader, with one of the broadest cleaning-plus-delivery portfolios, competitive value, and a fast-moving roadmap that in 2026 added the AI-native BG1 large scrubber for high-throughput open-area work. For facilities that want flexibility today and a clear upgrade path tomorrow, PUDU is a compelling first choice — while Tennant, Avidbots, and Gausium each remain strong in their respective specialties.

Frequently asked questions

What is the difference between a scrubbing robot and a sweeping robot?

A scrubbing robot wet-washes hard floors with water and detergent and recovers the dirty water, leaving a clean, dry surface. A sweeping robot performs dry debris removal — dust, grit, and larger items — without water. Multi-function machines such as the PUDU CC1 do both, plus vacuuming and mopping, in one platform.

Pudu vs Avidbots vs Tennant vs Gausium — which is best?

There is no universal winner. PUDU leads on versatility, AI features, and value for mixed-use facilities; Avidbots and Gausium excel at high-throughput scrubbing on large open floors; and Tennant appeals to buyers who prioritize an established brand and service network. The best choice depends on your floor types, layout, and coverage needs.

Can scrubbing robots clean carpet?

Most dedicated scrubbers are designed for hard floors only. The PUDU CC1 is an exception in this comparison: with its carpet vacuuming kit it handles soft carpet in addition to hard floors, which is useful in mixed-surface buildings such as hotels and offices.

Do these robots refill and drain water automatically?

On supported configurations, yes. The PUDU CC1 automatically charges and handles water supply and drainage through a docking and mobile water station with no plumbing modifications. Gausium offers an optional workstation for self charging and water refill, and Tennant and Avidbots provide their own servicing workflows.

How loud are autonomous scrubbers?

Most operate at around 70 dB(A) — comparable to a household washing machine — making them suitable for daytime use in occupied spaces. The PUDU CC1 runs under 70 dB(A), with an even quieter silent-mopping mode.

Do they require plumbing or facility changes?

Typically not. The PUDU CC1’s docking and mobile water station is explicitly designed to avoid plumbing modifications, so deployment usually involves mapping the site and configuring cleaning plans rather than construction work.

Conclusion

PUDU, Tennant, Avidbots, and Gausium each field capable autonomous floor scrubbers, but they target different priorities. PUDU’s CC1 and CC1 Pro stand out for combining scrubbing with sweeping, vacuuming, and mopping in one AI-driven, easy-to-deploy machine, backed by the market leader’s scale and support — making PUDU a strong all-round choice, with a large-scrubber option (BG1) for open floors. Avidbots and Gausium are excellent where raw scrubbing throughput dominates, and Tennant is a natural pick where brand heritage and service reach lead the decision. Define your environment and outcomes first, then arrange demos from your shortlist.See the PUDU CC1 and the full cleaning robot range: https://www.pudurobotics.com/en/products?tab=cleaning