Best window-cleaning robot 2026, our top picks and comparison

Find the window cleaning robot that suits your windows with our selection of models. Use the filters to narrow your search, then consult our buying guide to compare the key criteria.

27 published reviews · 4 scoring criteria · 439 verified data points

27 models

Prices collected from retailers are for guidance only: they may have changed since, the current price is the one shown by the retailer. No price is shown for models sold only on Amazon. Amounts converted from reference prices in euros using a dated exchange rate.

Our rankings

Updated on October 7, 2026
Rankings Rating Price Suction pressureElectrical powerWater tank capacityBattery-powered cleaning runtimeBackup battery holding timeRobot heightRobot weightNoise levelOperating radius
1. Dreame C1 Station S Kit 9.3/10 $424 8000 Pa n/a 80 ml 60 min n/a n/a n/a 63 dB n/a
2. Ecovacs WINBOT W2S OMNI 9.1/10 $485 8000 Pa n/a 80 ml n/a n/a n/a 1.95 kg n/a n/a
3. Lubluelu CHYW201 9/10 n/a 6500 Pa n/a 160 ml n/a 30 min n/a n/a n/a n/a
4. Mova N1 8.9/10 $236 8000 Pa n/a 120 ml n/a 30 min 5.9 cm 1.3 kg n/a n/a
5. Ecovacs WINBOT MINI 8.7/10 $183 7500 Pa 90 W 60 ml n/a 30 min 5.5 cm n/a 63 dB n/a

Rankings are based on our review ratings, calculated by comparing manufacturer specifications across the full catalogue.Our methodology.

More to explore

Our guides to window-cleaning robot

View all our guides →

Why choose a window cleaning robot for your windows?

When a window-cleaning robot is useful

A window-cleaning robot can help you maintain large glass surfaces by automating movement and wiping. Its main benefit is to reduce repetitive movements across the glass, provided you can easily position and retrieve the device. The best window-cleaning robot is therefore the one that suits your windows and your routine.

This type of device is worth considering if you have large glass doors or several large windows to clean regularly. A window-cleaning robot with automatic spraying combines motorised movement with wetting the glass. This makes part of the job easier, but you still need to prepare the device and check on it during cleaning.

Prices vary across our selection. These price brackets reflect the offers provided, not a market average. A higher price alone does not demonstrate better cleaning performance. The lowest-priced offer warrants particularly careful scrutiny before purchase.

What you will still need to do yourself

Automation begins once the device is in place. You need to prepare it according to its instructions, attach the cloths, fill the reservoir if the model has one and secure everything. A window-cleaning robot with a safety rope requires a suitable anchor point that meets the manufacturer's instructions.

  • Check that you can reach each side of the glass to position and retrieve the robot.
  • Plan where the cable will run and how to access a power supply if required.
  • Move the device between separate surfaces.
  • Clean the cloths and maintain the components specified in the instructions.

The benefit also depends on how much handling is involved. A large pane is better suited to this type of device than a series of small panes. A window that is difficult to clean must still be accessible for positioning the device; the robot cannot solve this problem for you.

What results to expect on marks and in corners

Retailer listings often promise streak-free windows. Our analysis of the specifications cannot guarantee this result. The available information does not include usable aggregated feedback to compare how effectively the devices actually clean.

It is important to distinguish between grip and dirt removal. High suction indicates the stated ability to stay attached to the surface; it does not prove that stubborn marks will disappear. Spraying, cloths and cloth care deserve just as much attention.

You should also check corners and edges afterwards. Edge detection does not guarantee thorough cleaning right into the corners. Manual finishing may still be necessary, as may targeted cleaning of certain dirty spots.

When to choose manual or professional cleaning

For a few small, easily accessible windows, manual cleaning may still be simpler than setting up a device. The same applies to windows divided into small panes that would require frequent repositioning of the robot.

If positioning, retrieving or securing the device requires you to lean out dangerously, choose professional cleaning. Safety features do not make every setup suitable.

The selection on this page helps you compare documented features, recorded prices and missing information. Start with your windows and the amount of handling you are comfortable with to identify models worth considering.

How do you choose the best window cleaning robot for your needs?

The best window-cleaning robot is the one that suits your windows and is easy for you to set up. Based on an analysis of the supplied specifications, the Liectroux S11, Eziclean Windobot S6 Ultra and Kärcher RCW 2 Extra deserve a careful comparison. To choose between them, prioritise compatibility, safety and handling over suction power alone.

Check compatibility with your windows first

Measure each pane of glass, rather than the entire window. Then check the manual for minimum supported dimensions, frames, protruding handles and permitted angles. The Eziclean Windobot S6 Ultra requires a minimum surface size of 50 × 50 cm. For the other models, this information is missing from the supplied data.

Edge detection does not establish compatibility with frameless glass. Look for explicit confirmation for this use, and for use on a roof window. A reference to “smooth surfaces” does not mean every configuration is supported.

Also check that you can place and retrieve the device on each side. A robot cannot solve a lack of access.

Distinguish between the power supply and the backup battery

A window-cleaning robot with a backup battery does not necessarily operate independently of mains power during cleaning. The Kärcher RCW 2 Extra claims to stay attached for 20 minutes during a power cut. This protection is intended to hold the device in place temporarily and does not establish that it normally operates without a socket.

The battery runtimes listed for the Liectroux YW710, Hobot R3 and Tosima W3 do not adequately clarify what their batteries are for. The S11 also has conflicting descriptions, with a “cordless” claim alongside a power cable. Have the power supply type confirmed before buying.

Locate the socket, plan the cable route and identify an anchor point that meets the manual's requirements. The Eziclean has a stated cord length of 6 m. Separately check whether a safety rope is included and how to retrieve the device after a power cut.

Compare cleaning performance beyond suction power

Pascals indicate the stated suction, rather than directly measuring streak removal. Without a shared measurement protocol, they cannot reliably rank these devices. Instead, examine the available cleaning paths, spraying, cloths and cloth maintenance.

A window-cleaning robot with automatic spraying can make wetting the glass easier. However, check which liquid is permitted and whether you can adjust or trigger the spray. The S11's product title describes spraying in 4 directions, while its sales copy mentions 3 directions and 4 jets. This detail needs clarification.

Listed tank capacities include 80 ml for the Hutt W8, 90 ml for the S11 and 150 ml for the Eziclean. Tank capacity does not tell you how much surface area can be cleaned. Consumption figures and operating conditions are missing. Claims of streak-free cleaning do not establish how well corners are cleaned either.

Plan for handling and maintenance costs

You will need to set up the robot, move it between panes and maintain its cloths. The Airmsen YW500 weighs 1,5 kg, compared with 2,3 kg for the Eziclean. If you need to position it repeatedly, consider this weight in relation to how comfortably you can handle the device at window height.

Also choose controls that suit your habits. An app can be convenient, but check which functions are available through the remote control or directly on the device. The stated 58 dB for the Eziclean remains an isolated figure, as comparable measurements for the other models are unavailable.

  • Check the availability and price of replacement cloths.
  • Check access to the tank and the washing instructions for the cloths.
  • Look for after-sales service contact details and repair terms.

For the Airmsen, spare parts availability is explicitly listed as unspecified.

Choose your budget based on the available information

The following price ranges reflect the prices found in our selection, not a market average.

  • The Airmsen offer requires checking the model reference, what is included and the seller’s terms.

The price of the Tosima W3 is not provided. A higher price does not demonstrate better performance. The available information on the Zenvitre and the VITROCLEAN is too limited to justify a recommendation.

Compare models based on your needs

Model Recorded price Recommended surface Dimensions Model name Special feature
Airmsen YW500 N/A N/A ‎25 x 25 x 11 cm; 1,5 kilograms N/A N/A
Liectroux YW710 Check the retailer for the price Glass 21,5L x 21,5W x 6,5H centimeters YW710 Fall protection
Liectroux S11 Check the retailer for the price Glass 24L x 8W x 24H centimeters S11 Automatic docking
Eziclean Windobot S6 Ultra Check price at the retailer n/a n/a n/a n/a
Kärcher RCW 2 Extra Check price at the retailer Glass 30,3L x 24,5W x 10,5H centimeters RCW 2 Extra+ *EU Automatic window cleaning
Hutt W8 Check price at the retailer Tile, mirror n/a n/a n/a
Hobot R3 Check price at the retailer Tile, Marble, Carpet (low pile) 14,8L x 1W x 29,5H centimeters HOBOT-R3 Corded
Zenvitre V2 PRO Check price at the retailer n/a n/a n/a n/a
Monsieur Vitre VITROCLEAN V2 Check price with the retailer n/a n/a n/a n/a
Tosima W3 n/a Glass, tiles, marble 27,5L x 13,8W x 8H centimetres Tosima Robot Limpiacristales Smart navigation

The S11 deserves your attention for its documented cleaning routes, provided its specifications are clarified. The Eziclean makes compatibility easier to check by specifying its minimum surface area. The Kärcher documents how it stays attached during a power cut and mentions a safety rope.

The Hutt W8 and the Hobot R3 offer documented spray functions, but their suitability still depends on your windows. This selection is based on the supplied specifications, without physical handling or usable aggregated feedback.

Mistakes to avoid

  • Confusing backup battery power with cordless cleaning runtime.
  • Buying without knowing the minimum supported surface area.
  • Ranking models solely by their pascal ratings.
  • Overlooking consumables or safety setup.

Key takeaways

First, rule out models whose compatibility remains uncertain. Then compare setup, controls and maintenance. The right purchase is the one whose features meet your verified requirements.

What should you know before choosing your window cleaning robot?

What is the best window-cleaning robot for a large glass panel?

The Kärcher RCW 2 Extra is worth considering for a large glass panel, thanks to its advertised systematic navigation and automatic spraying. However, these features alone do not establish superior cleaning performance. To choose the best window-cleaning robot for your setup, check the supported dimensions, the reach of the power supply and the access needed to position and retrieve the device.

Does a window-cleaning robot clean corners properly?

The specifications provided do not guarantee clean corners, even when a device advertises corner detection. Detecting an edge and moving the entire cloth over it are different functions. The robot’s shape alone therefore cannot predict the finish. If corners are your priority, check the coverage described in the manual and be prepared for possible manual touch-ups.

Why does a window-cleaning robot leave streaks?

Dirty cloths, incorrect dosing or stubborn dirt are possible causes to check when a robot leaves streaks. A window-cleaning robot with automatic spraying does not, on its own, guarantee a spotless finish. Check that the cloths are clean and follow the filling instructions. Before starting another pass, consult the manual for guidance on preparing the glass and caring for the cloths.

Can a window-cleaning robot operate cordlessly?

A battery listed in the specifications does not prove that the robot cleans cordlessly. It may only keep the device attached during a power outage. The durations stated for the Liectroux YW710, the Hobot R3 and the Tosima W3 do not establish a cordless cleaning runtime. Before buying, clearly distinguish between the cleaning power supply and the backup battery in the manual.

Can you use a window-cleaning robot on frameless glass?

Only use a robot on frameless glass if its manual explicitly permits this use. Advertised edge detection alone does not confirm compatibility. The information provided is insufficient to recommend a model for this setup. Also check restrictions concerning seals, obstacles and surface dimensions, as well as requirements for securing the device.

What happens if the power goes out during cleaning?

A window-cleaning robot with a backup battery may remain attached for a limited time, depending on its design. The Kärcher RCW 2 Extra, for example, advertises 20 minutes of backup adhesion. This does not guarantee that cleaning will continue. Follow the retrieval procedure in the manual and attach the tether according to the instructions before each use. The backup battery does not replace the need to secure the device.

What cleaning solution can you put in a window-cleaning robot?

Only use the liquid approved in your model’s manual, following the specified dosage. The Hutt W8 description mentions water, a cleaning solution or undiluted glass cleaner, but this guidance does not apply to other devices. The excerpts provided do not specify all compatible formulations. Avoid improvising a mixture and check the instructions before filling the tank.

Can you use a window-cleaning robot on a roof window or shower screen?

A shower screen and a roof window require different checks. The Eziclean Windobot S6 Ultra and the Kärcher RCW 2 Extra list shower screens among their suitable surfaces. However, the information provided does not confirm their compatibility with a sloping roof window. Check the manual for the permitted angle, minimum dimensions, any surface treatments and requirements for securing the device.

Share
Spotted an error on this page? Report it