We Spent the Last Three Months Testing the Top 24 Window Cleaning Robots in 2024
Published: 22nd October 2024
Cleaning windows can be a real chore, especially if you have high or hard-to-reach ones. Let's face it: scrubbing smudges, wiping streaks, and tackling those long, tall windows are tasks that often take up more time and energy than we'd like. For years, ladders, squeegees, and a lot of elbow grease were the only way to get a clear view through spotless glass. But now, with the rise of robot window cleaners, there's a better way.
Our team went through a lot of robot cleaners this year: 24, to be exact. These smart devices can save you from the hassle of manual cleaning by taking on those tough spots and delivering a streak-free finish without you lifting a finger. After days of testing, we narrowed it down to the top 5 cleaners that really stood out.
Further below, we'll be breaking down some of the best window cleaning robots we've tried this year and which ones came out on top.
1. Cosari Robot Window Cleaner
Sold at buycosari.com
147 reviews
RANKING:
A+
147 reviews
RANKING:
A+
Summary:
By far, everyone had the best results with Cosari Robot Window Cleaner. A fan favorite since their company began, it features 3 cleaning trajectories and an intelligent water spray system. It can be used not only on windows, but other glass surfaces like mirrors, tiles, shower cabins, etc. 95% of our test participants have said that it's a worthwhile investment as they no longer have to pay professional cleaning companies for their window-cleaning services.
Summary:
By far, everyone had the best results with Cosari Robot Window Cleaner. A fan favorite since their company began, it features 3 cleaning trajectories and an intelligent water spray system. It can be used not only on windows, but other glass surfaces like mirrors, tiles, shower cabins, etc. 95% of our test participants have said that it's a worthwhile investment as they no longer have to pay professional cleaning companies for their window-cleaning services.
POSITIVE
- Ultrasonic sprinklers and dual water tank.
- 3 cleaning trajectories: N-type, Z-type, and N/Z type.
- Intelligent spray system that evenly distributes water across a surface.
- Strong vacuum absorption of 3000pA.
- Built-in UPS system that automatically switches the robot off after cleaning is done.
- Equipped with anti-fall design and safety rope and buckle.
- Free shipping in the USA.
NEGATIVE
- Occasionally out of stock due to high demand.
- Only sold online at buycosari.com.
Overview:
After testing out 24 of the top window-cleaning robots, our favorite by far was Cosari.
Cosari Gaming Headset is equipped with an innovative ultrasonic sprinkler system. It has a built-in UPS power-off system in addition to the anti-fall sensors and safety rope. Right off the bat, it's clear Cosari prioritizes safety. Designed to be durable, it's made from sturdy anti-slip material that doesn't compromise speed or efficiency.
We appreciate that it has 3 cleaning trajectories that handle both wet and dry cleaning, and that it's remote-controlled.
Comparable to equipment used by professional cleaning services, the Cosari Robot Window Cleaner is a steal for only $499, and it works just as well as what cleaning technicians use on the job.
In addition to their great price compared to others the market, they also provide free shipping and a 30-day money-back guarantee on their product.
Cosari has quickly become one of the best-selling robot window cleaners in the US thanks to its incredible smart cleaning system and low noise design.
We received the package 4 days after placing the order on their website, and it came with the robot cleaner itself, power adapter, microfiber cloths, safety rope, and was nicely packed in a branded Cosari box.
If you are looking for the best quality robot window cleaner sold at a reasonable price, Cosari is our top choice.
Overview:
After testing out 24 of the top window-cleaning robots, our favorite by far was Cosari.
Cosari Gaming Headset is equipped with an innovative ultrasonic sprinkler system. It has a built-in UPS power-off system in addition to the anti-fall sensors and safety rope. Right off the bat, it's clear Cosari prioritizes safety. Designed to be durable, it's made from sturdy anti-slip material that doesn't compromise speed or efficiency.
We appreciate that it has 3 cleaning trajectories that handle both wet and dry cleaning, and that it's remote-controlled.
Comparable to equipment used by professional cleaning services, the Cosari Robot Window Cleaner is a steal for only $499, and it works just as well as what cleaning technicians use on the job.
In addition to their great price compared to others the market, they also provide free shipping and a 30-day money-back guarantee on their product.
Cosari has quickly become one of the best-selling robot window cleaners in the US thanks to its incredible smart cleaning system and low noise design.
We received the package 4 days after placing the order on their website, and it came with the robot cleaner itself, power adapter, microfiber cloths, safety rope, and was nicely packed in a branded Cosari box.
If you are looking for the best quality robot window cleaner sold at a reasonable price, Cosari is our top choice.
2. EVOVACS Winbot W2 Omni Robot
Sold by EVOVACS
52 reviews
RANKING:
B+
52 reviews
RANKING:
B+
Summary:
The ECOVACS Winbot W2 Omni Robot is reliable and efficient with its WIN-SLAM 3.0 navigation. It effortlessly navigates from edge to edge while avoiding obstacles, ensuring every inch gets attention. The unique three-nozzle spray technology smoothly covers the glass without leaving drips, while the anti-slip driving tread keeps it securely in place. Though it still requires a battery connection, its performance makes it a solid choice.
Summary:
The ECOVACS Winbot W2 Omni Robot is reliable and efficient with its WIN-SLAM 3.0 navigation. It effortlessly navigates from edge to edge while avoiding obstacles, ensuring every inch gets attention. The unique three-nozzle spray technology smoothly covers the glass without leaving drips, while the anti-slip driving tread keeps it securely in place. Though it still requires a battery connection, its performance makes it a solid choice.
POSITIVE
- Built-in 12-stage protection system.
- Uses spray atomization technology through 3 nozzles.
- Multiple sensors to ensure uninterrupted cleaning.
- Comes with a 6-in-1 multi-purpose dock that serves as a control panel, charger, and portable storage room all at once.
NEGATIVE
- EVOVACS is a popular brand and stock may run low at times.
- More expensive than other products in the market.
Overview:
The ECOVACS Winbot W2 Omni Robot earned its spot as our second choice for its impressive combination of innovation and reliability in window cleaning. Equipped with the advanced WIN-SLAM 3.0 navigation, this model can easily handle complex routes, moving from edge to edge without missing a spot. Even when facing obstacles, it glides smoothly, which means no tedious stops or frustrating resets while cleaning large windows or glass doors.
Its three-nozzle spray system doesn't just make it easier to dissolve grime but also spreads the cleaning solution evenly without leaving any messy drips. What's even more impressive is the design; its boxy, suitcase-like structure holds firmly to the glass with ease. Watching the W2 Omni in action feels almost futuristic, as it steadily scales the glass with a three-point anti-slip tread that gives it a surefooted, reliable grip.
The W2 Omni isn't entirely cordless; while the battery can be detached for flexibility, it still requires a battery pack for operation. ECOVACS hinted that going fully cordless might be on the roadmap, but for now, the existing design provides both indoor and outdoor cleaning without sacrificing power.
Overview:
The ECOVACS Winbot W2 Omni Robot earned its spot as our second choice for its impressive combination of innovation and reliability in window cleaning. Equipped with the advanced WIN-SLAM 3.0 navigation, this model can easily handle complex routes, moving from edge to edge without missing a spot. Even when facing obstacles, it glides smoothly, which means no tedious stops or frustrating resets while cleaning large windows or glass doors.
Its three-nozzle spray system doesn't just make it easier to dissolve grime but also spreads the cleaning solution evenly without leaving any messy drips. What's even more impressive is the design; its boxy, suitcase-like structure holds firmly to the glass with ease. Watching the W2 Omni in action feels almost futuristic, as it steadily scales the glass with a three-point anti-slip tread that gives it a surefooted, reliable grip.
The W2 Omni isn't entirely cordless; while the battery can be detached for flexibility, it still requires a battery pack for operation. ECOVACS hinted that going fully cordless might be on the roadmap, but for now, the existing design provides both indoor and outdoor cleaning without sacrificing power.
3. AlfaBot X7 Robot Window Cleaner
Sold by AlfaBot
30 reviews
RANKING:
B-
30 reviews
RANKING:
B-
Summary:
AlfaBot X7 Robot Window Cleaner has effective dual water spray system and intuitive pathfinding, making it a solid choice for sparkling, deep cleans. With double-sided water outlets and washable microfiber pads, it tackles dirt even on hard-to-reach areas. If you're looking for a smaller robot for your simple home or office windows, this one is great.
Summary:
AlfaBot X7 Robot Window Cleaner has effective dual water spray system and intuitive pathfinding, making it a solid choice for sparkling, deep cleans. With double-sided water outlets and washable microfiber pads, it tackles dirt even on hard-to-reach areas. If you're looking for a smaller robot for your simple home or office windows, this one is great.
POSITIVE
- Automatic dual water spray.
- Operates with 3 cleaning modes.
- Deep cleaning for high rise windows.
- Comprehensive security protection.
NEGATIVE
- Does not cover as much surface area compared to other cleaners on the list.
- Water tank is only 25 ml.
Overview:
The AlfaBot X7 Robot Window Cleaner has a dual water spray system and strong pathfinding abilities, securing its spot in third place on our list.
The double-sided water outlets spray in multiple directions, helping to loosen and remove grime effectively across all parts of the window. Combined with washable microfiber pads, this feature ensures a thorough scrub that reaches even those tricky, hard-to-reach spots, giving windows a truly deep clean.
Its 25ml water tank means you don't have to stop and spray manually, adding a convenient, hands-free element to the cleaning process. However, this relatively small tank may require more frequent refills if you're tackling large windows or multiple glass surfaces. On the bright side, the X7’s powerful 3KPA suction keeps it securely attached to the glass, even at high elevations, and the safety rope provides an added layer of security.
For safety, the X7 includes advanced edge detection sensors that help it navigate without bumping or falling. In the event of a power outage, a 30-minute backup battery allows it to finish or pause cleaning safely. Though a little slower in pace compared to our top picks, the X7 delivers quality cleaning without much user intervention. We appreciate that it's backed by a 1-year warranty and customer support.
Overview:
The AlfaBot X7 Robot Window Cleaner has a dual water spray system and strong pathfinding abilities, securing its spot in third place on our list.
The double-sided water outlets spray in multiple directions, helping to loosen and remove grime effectively across all parts of the window. Combined with washable microfiber pads, this feature ensures a thorough scrub that reaches even those tricky, hard-to-reach spots, giving windows a truly deep clean.
Its 25ml water tank means you don't have to stop and spray manually, adding a convenient, hands-free element to the cleaning process. However, this relatively small tank may require more frequent refills if you're tackling large windows or multiple glass surfaces. On the bright side, the X7’s powerful 3KPA suction keeps it securely attached to the glass, even at high elevations, and the safety rope provides an added layer of security.
For safety, the X7 includes advanced edge detection sensors that help it navigate without bumping or falling. In the event of a power outage, a 30-minute backup battery allows it to finish or pause cleaning safely. Though a little slower in pace compared to our top picks, the X7 delivers quality cleaning without much user intervention. We appreciate that it's backed by a 1-year warranty and customer support.
4. HOBOT 2S Window Cleaning Robot
Sold by HOBOT
27 reviews
RANKING:
C+
27 reviews
RANKING:
C+
Summary:
The HOBOT S2 Window Cleaning Robot has strong vacuum suction and AI-guided route planning, making it effective for most window surfaces. Its dual water tanks and auto-edge detection ensure thorough coverage, while the long safety rope and backup battery provide extra security. Downsides include a tendency to slip if the cleaning pad gets too wet, which can hinder performance, especially outdoors where even a light breeze can disrupt the fine spray mist. The S2 performs best as a maintenance tool rather than a deep cleaner.
Summary:
The HOBOT S2 Window Cleaning Robot has strong vacuum suction and AI-guided route planning, making it effective for most window surfaces. Its dual water tanks and auto-edge detection ensure thorough coverage, while the long safety rope and backup battery provide extra security. Downsides include a tendency to slip if the cleaning pad gets too wet, which can hinder performance, especially outdoors where even a light breeze can disrupt the fine spray mist. The S2 performs best as a maintenance tool rather than a deep cleaner.
POSITIVE
- Covers a large surface area.
- Anti-fall technology in the form of AI detecting the edge of the window surface.
- Powerful vacuum absorption.
- Budget-friendly.
NEGATIVE
- Bulky.
- App may require a steeper learning curve for users.
Overview:
The HOBOT S2 Window Cleaning Robot is tailored to a variety of surfaces. With a powerful vacuum force, the S2 attaches securely to glass while effectively extracting dust and dirt, making it ideal for frameless windows or higher spots. Its AI-powered smart route planning and auto-edge detection allow it to cover windows in a zigzag pattern both horizontally and vertically, ensuring thorough cleaning with minimal manual oversight.
One of the S2's notable features is its dual replaceable water tanks with ultrasonic sprayers that convert liquid into a fine mist, evenly covering the glass. However, this system has a few quirks. Outdoors, even a slight breeze can blow the mist away from the window, reducing its effectiveness.
Additionally, while the cleaning pad is designed for reusable efficiency, it tends to slip when overly wet, preventing the robot from maintaining its grip and sometimes stopping it from reaching the top of the window.
For extra security, the S2 includes a 15-foot safety rope and an uninterrupted power system, both essential for high windows or areas prone to power outages. The edge-leakage sensor is another helpful feature, detecting air leakage around window seals, which makes it compatible with a wide range of surfaces. While the S2 performs best as a maintenance tool for windows already cleaned manually, its combination of smart tech and strong safety measures makes it a reliable choice.
Overview:
The HOBOT S2 Window Cleaning Robot is tailored to a variety of surfaces. With a powerful vacuum force, the S2 attaches securely to glass while effectively extracting dust and dirt, making it ideal for frameless windows or higher spots. Its AI-powered smart route planning and auto-edge detection allow it to cover windows in a zigzag pattern both horizontally and vertically, ensuring thorough cleaning with minimal manual oversight.
One of the S2's notable features is its dual replaceable water tanks with ultrasonic sprayers that convert liquid into a fine mist, evenly covering the glass. However, this system has a few quirks. Outdoors, even a slight breeze can blow the mist away from the window, reducing its effectiveness.
Additionally, while the cleaning pad is designed for reusable efficiency, it tends to slip when overly wet, preventing the robot from maintaining its grip and sometimes stopping it from reaching the top of the window.
For extra security, the S2 includes a 15-foot safety rope and an uninterrupted power system, both essential for high windows or areas prone to power outages. The edge-leakage sensor is another helpful feature, detecting air leakage around window seals, which makes it compatible with a wide range of surfaces. While the S2 performs best as a maintenance tool for windows already cleaned manually, its combination of smart tech and strong safety measures makes it a reliable choice.
5. ECOVACS Winbot W1 Pro
Sold by ECOVACS
14 reviews
RANKING:
C
14 reviews
RANKING:
C
Summary:
ECOVACS Winbot W1 Pro offers strong suction power at 2,800Pa and effective dual-direction spray to tackle stubborn stains. Its' 60ml water reservoir minimizes refills and its edge detection handles frameless windows with ease, the reliance on app-only control (no remote included) adds a layer of inconvenience.
Summary:
ECOVACS Winbot W1 Pro offers strong suction power at 2,800Pa and effective dual-direction spray to tackle stubborn stains. Its' 60ml water reservoir minimizes refills and its edge detection handles frameless windows with ease, the reliance on app-only control (no remote included) adds a layer of inconvenience.
POSITIVE
- High capacity water tank of 60 ml.
- WIN SLAM 3.0 technology.
- Anti-fall sensors.
NEGATIVE
- Only 1 cleaning trajectory.
Overview:
Despite coming last on our list, the ECOVACS Winbot W1 Pro is by no means lacking. After narrowing down our top 5 from the 24 robot cleaners we've tested, our standards were rigorous.
The Winbot W1 Pro is the cheaper, earlier alternative to those who don't want to splurge on the W2.
On the positive side, its 2,800Pa suction power holds the unit firmly in place on most glass surfaces, and its unique dual-direction cross-spray system effectively dissolves grime by maintaining a steady, damp mopping pad.
The W1 Pro's drive system is well-designed for stable movement, ensuring the robot moves smoothly across windows. It also has a 60ml water reservoir, allowing longer cleaning times without frequent refills, a convenient feature for large windows.
Despite these strengths, the W1 Pro struggles with slipping, particularly on larger windows. During our testing, we found that the lower track frequently slipped, causing the robot to drift upward and clean only the top half of the window, leaving the lower section untouched. This design flaw impacts its effectiveness, especially if you're looking for an even clean across your entire window.
Another minor drawback is the app-only control system; you’ll need to download the “Ecovacs Home” app, scan a QR code to sync the bot, and manage everything from your phone. While the app offers convenience, the lack of a separate remote might be frustrating for some users.
Overview:
Despite coming last on our list, the ECOVACS Winbot W1 Pro is by no means lacking. After narrowing down our top 5 from the 24 robot cleaners we've tested, our standards were rigorous.
The Winbot W1 Pro is the cheaper, earlier alternative to those who don't want to splurge on the W2.
On the positive side, its 2,800Pa suction power holds the unit firmly in place on most glass surfaces, and its unique dual-direction cross-spray system effectively dissolves grime by maintaining a steady, damp mopping pad.
The W1 Pro's drive system is well-designed for stable movement, ensuring the robot moves smoothly across windows. It also has a 60ml water reservoir, allowing longer cleaning times without frequent refills, a convenient feature for large windows.
Despite these strengths, the W1 Pro struggles with slipping, particularly on larger windows. During our testing, we found that the lower track frequently slipped, causing the robot to drift upward and clean only the top half of the window, leaving the lower section untouched. This design flaw impacts its effectiveness, especially if you're looking for an even clean across your entire window.
Another minor drawback is the app-only control system; you’ll need to download the “Ecovacs Home” app, scan a QR code to sync the bot, and manage everything from your phone. While the app offers convenience, the lack of a separate remote might be frustrating for some users.
Our Favorite
1. Cosari Robot Window Cleaner
Sold at buycosari.com
147 reviews
RANKING:
A+
Summary:
By far, everyone had the best results with Cosari Robot Window Cleaner. A fan favorite since their company began, it features 3 cleaning trajectories and an intelligent water spray system. It can be used not only on windows, but other glass surfaces like mirrors, tiles, shower cabins, etc. 95% of our test participants have said that it's a worthwhile investment as they no longer have to pay professional cleaning companies for their window-cleaning services.
147 reviews
RANKING:
A+
Summary:
By far, everyone had the best results with Cosari Robot Window Cleaner. A fan favorite since their company began, it features 3 cleaning trajectories and an intelligent water spray system. It can be used not only on windows, but other glass surfaces like mirrors, tiles, shower cabins, etc. 95% of our test participants have said that it's a worthwhile investment as they no longer have to pay professional cleaning companies for their window-cleaning services.
How we ranked:
Suction Power: Strong suction power is essential to ensure that the robot adheres firmly to the glass and remains stable during cleaning, especially for vertical or high-rise windows. Higher suction power typically translates to better grip, reducing the risk of slips or falls. AlfaBot X7 has a strong suction of 3000.
Cleaning Efficiency: Efficiency involves the robot's ability to cover every inch of a window without missing spots. Robots with smart navigation systems (like AI-driven pathfinding) and edge-detection sensors often score higher as they ensure thorough, edge-to-edge cleaning, even on frameless windows. The HOBOT S2 excels at this, followed by the Cosari Robot Window Cleaner.
Water Tank Capacity: Larger water tanks allow for uninterrupted cleaning sessions, while advanced spray technology (such as ultrasonic misting) helps break down grime without soaking the window. Models with efficient, well-calibrated sprays keep the cleaning pad just moist enough, preventing streaks and reducing the need for frequent refills. ECOVACS Winbot W1 has a large capacity of 60ml.
Safety Features: Safety is crucial, especially for high windows. Robots equipped with safety ropes, backup battery systems, and advanced sensors reduce the risk of falling if power fails. Robots with these features provide extra peace of mind during operation. ECOVACS Winbot W2 Omni has a 12-step protection system.
Adaptability: The ability to clean different window types (frameless, high-rise, or irregularly shaped) is essential. Some robots are better equipped with adaptable cleaning mechanisms and edge detection for seamless movement on any glass type. Cosari Robot Window Cleaner can handle different types of windows and glass surfaces with no problem.
By carefully evaluating these criteria, we arrived at our final ranking, with the Cosari Robot Window Cleaner at the top, followed by the ECOVACS Winbot W2 Omni, AlfaBot X7, HOBOT S2, and ECOVACS WSinbot W1 Pro. This ranking reflects a balanced combination of suction power, cleaning efficiency, water tank capacity, safety features and adaptability, thus considering the diverse needs of users seeking efficient and reliable window cleaning robots.
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