Updated - Yesterday
EvaJansen@pickyexperts.com
9.7
EXCELLENT
OVOX R8
Window cleaning robot with a two-way smart spraying system, powerful 2800 Pa suction, dry and wet cleaning modes, window polishing, and frameless edge detection using air pressure sensing.
- Dual spray system
- AI Powered Navigation
- Frameless edge detection with Air
- Pressure Sensing
- Brushless Motor with 10-Year Warranty
- Hand-Wiping Motion Technology
- 8x High-Capture Nano Microfiber Sheets
- Cleans Both Framed & Frameless Glass
- Edge to Frame Cleaning Precision with Smart Navigation
- Ultra-Slim, Lightweight Design
- Cleans more than windows – ideal for all smooth surfaces.
- No corner left behind – 99% Edge-To-Edge Cleaning
- Dry and wet cleaning functions, as well as window polishing.
- 20 min Emergency hold system
- Intelligent path planning modes
- Powerful suction force (2800 Pa)
- Quiet operation (60 dB)
| ✅ Advantages | ❌ Disadvantages |
|---|---|
| ✅ Dual spray system: The automatic window washer fluid spray system perfectly copes with various surfaces and different types of dirt. ✅ Quality cloths: Microfiber cloths with long bristles better absorb dirt and various dirt. ✅ Simple control: The robot is controlled with a remote control by pressing several buttons. There is no need to download apps, which often do not work very smoothly, sometimes it is difficult to connect robots to them. ✅ Shape: Due to its round shape, the robot reaches the edges and corners of the window more efficiently. ✅ New model: The new model includes many features not found in earlier test models, along with improved build quality that enhances window cleaning efficiency. | ❌ No voice notifications: This robot does not include an integrated voice notification feature; however, the absence of this function does not affect the device’s cleaning performance. ❌ There is no bag: The package does not include a transport bag, which would be more convenient to transport the robot. ❌ Works with a cable: Corded, so an outlet or extension cord is required. |
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9.1
GREAT
HUTT W8
Window cleaning robot features a two-sided detergent spray system, edge-leakage sensors, AI path planning, automatic water spraying, a built-in UPS system, voice notifications, and three spray modes.
- Dual water spraying system “Whale Spout”
- Powerful 3800 Pa suction
- HUTTSLAM 2.0 intelligent path planning
- 80 ml visible water tank
- 3 cleaning modes
- Laser sensors
- Voice notifications
- Backup 650 mAh battery
- 6-meter-long safety rope
- Suitable for various surfaces
- Transport bag
| ✅ Advantages | ❌ Disadvantages |
|---|---|
| ✅ Transport bag: A convenient, strong bag in which it is convenient to store the robot at home or take it to the desired place. ✅ Water spray system on both sides: Sprays from both sides and the spray adapts to the cleaning side. ✅ Quality cloths: The cloths are made of strong material, with high bristles. | ❌ Slow: It works quite slowly, and because it gets stuck and stops in places, cleaning the entire surface can take time. ❌ It took longer to launch: The robot does not start cleaning immediately, it gets stuck while cleaning. ❌ The remote control did not work smoothly: The robot does not immediately react to the remote control signal, you need to wait up to a minute for the robot to react. ❌ Streaks may remain: When cleaning, the robot sprays liquid, but the cloth does not clean everything evenly, it leaves streaks. |
8.9
VERY GOOD
ECOVACS W2 OMNI
Window cleaning robot with a triple spray system, powerful 5500 Pa suction, WIN-SLAM 4.0 path planning, built-in 4500 mAh battery, and 7 intelligent cleaning modes for frameless and standard glass surfaces.
- Triple spray system
- Powerful 5500 Pa suction
- Smart WIN-SLAM 4.0 path planning
- Built-in 4500 mAh battery
- 12-level safety system
- Portable OMNI station
- Suitable for frameless windows
- Automatic return to starting position
- 7 intelligent cleaning modes
| ✅ Advantages | ❌ Disadvantages |
|---|---|
| ✅ Triple spray system: The liquid is distributed evenly and widely, ensuring effective surface wetting before cleaning. ✅ Returns to starting point: The robot always returns to the original starting position after completing its task. ✅ Smooth movement: The robot moves fluidly and covers the entire window area efficiently. ✅ Modern design: Sleek appearance, leather handle, and high-quality materials. | ❌ Suction is too strong: The 5500 Pa suction creates high resistance, causing slower movement. ❌ Poor quality cloths: The mops are made of thin material, wear out quickly, and don’t absorb dirt effectively. ❌ May leave streaks: The spray system is effective, but the cloth sometimes fails to wipe evenly. ❌ App connection issues: Users reported difficulties with pairing and lag during operation. ❌ Not for small windows: The large square shape makes it unsuitable for small-sized windows. ❌ Loud operation: Audible signals are hard to hear clearly due to overall noise. |
8.0
GOOD
Mamibot W200
Window cleaning robot with powerful 2800 Pa suction, a wireless design featuring a long-lasting 3350 mAh detachable battery, intelligent edge detection, and 3 cleaning modes.
- Powerful suction force (2800 Pa)
- Wireless design & long work time
- Intelligent edge detection technology
- 3350 mAh detachable battery
- 3 cleaning modes
- 4 cleaning cloths
- Quiet operation (65 dB)
- Suitable for frameless surfaces and mirrors
| ✅ Advantages | ❌ Disadvantages |
|---|---|
| ✅ Quality build: The robot is made from strong materials and arrives in safe, thoughtful packaging. ✅ Quieter operation: Compared to other models, the voice signals are clearly audible. ✅ Wireless design: Operates without a cable, ideal for spaces without nearby power outlets. ✅ Quality towels: Durable cloths are included, though they are relatively narrow. | ❌ Heavy: The unit is large and heavy, making storage and handling more cumbersome. ❌ No return function: The robot does not consistently return to its starting position. ❌ No spray system: Windows must be sprayed manually with cleaning solution. ❌ Limited battery safety: Being wireless, it may need multiple charges during longer cleanings. ❌ Misses edges: The area around the safety rope attachment remains uncleaned. |
7.8
AVERAGE
HUTT C65
Window cleaning robot with a water spray system, powerful 3800 Pa suction, smart path planning, dry and wet cleaning modes, UPS safety battery, and a transport bag.
- Water spray system
- Powerful suction force (3800 Pa)
- 80 ml water tank
- Smart path planning technology
- Dry and wet cleaning modes
- UPS system with 650 mAh battery
- Smart frameless edge detection
- Suitable for various surfaces
- Transport bag
| ✅ Advantages | ❌ Disadvantages |
|---|---|
✅ Water spray system: Two nozzles spray in two directions for efficient cleaning. | ❌ Did not return to the starting point: The robot often fails to return to its starting location. |
7.8
AVERAGE
HOBOT-2S
Window cleaning robot features a two-sided detergent spray system, edge-leakage sensors, AI path planning, automatic water spraying, a built-in UPS system, voice notifications, and three spray modes.
- Two-sided detergent spray
- Edge-leakage sensors
- AI path planning
- Automatic water spraying
- Control via app and remote control
- Built-in UPS system
- Replaceable water tanks
- Suitable for various surfaces
- Voice notifications
- 3 water spray modes
- 2 water tanks
| ✅ Advantages | ❌ Disadvantages |
|---|---|
✅ Design: Well-packed and made of sturdy materials. | ❌ Loud: The volume is quite loud, it is difficult to hear voice messages, it can be annoying, and it squeaks when cleaning the edges. |
Our best recommendation
OVOX R8
The OVOX R8 robot efficiently cleaned different sorts of dirt from various surfaces. True, in order to clean dirty surfaces, the cleaning cycle of the OVOX robot, like the others tested, had to be repeated at least a couple of times. OVOX effectively coped with even very dirty windows.
Two-Way Smart Spraying
The OVOX R8 window cleaning robot uses a dual-nozzle water spray system to evenly distribute cleaning solution, allowing the microfiber cloth to remove dirt efficiently. It sprays and wipes in one motion, delivering faster and more effective results than many other models.
Simulated Manual Wiping
The robot mimics the motion of a human hand, moving with just the right pressure and rhythm to tackle even stubborn stains. During testing, it managed to remove smudges and dried-on spots that many other models left behind.
Although the robot is not controlled via an app, this might seem like a drawback at first. However, after extended testing, we found that remote control operation is actually more practical. Every window-cleaning robot requires at least some user interaction—such as placing it on the window or changing the cloths—and none of that needs an app. In fact, when your hands are wet or you’re multitasking, using a simple remote is far easier than navigating a smartphone screen.
Ovox operates while plugged into a power outlet, but at just 1.5 kg, it’s noticeably lighter than many other models. A top-mounted handle and clearly visible power button make setup and activation easy and intuitive.
Robot testing
Window cleaning from the outside
We tested the cleaning efficiency of the robot by cleaning windows from the outside, which have old dirt and various stains. To clean these windows we had to repeat the robot program several times and change the cloths. This is common practice when cleaning dirtier surfaces with a robotic window cleaner.
Cleaning of glass office partitions
The robot effectively cleaned fingerprints, dust, and other dirt. The robot moved smoothly, went around the entire area, and returned to the starting point after completing the program.
HUTT W8
The Hutt W8 is a robot designed for cleaning windows. It has a spray system and comes with a transport bag, 3 quality cloths, and other accessories. The mops have longer bristles and are wider, enabling them to clean a larger surface at once. Additionally, this robot has a system of two water nozzles – one on each side – that adapts to the cleaning side. When cleaning downwards, it sprays only with the lower nozzle, and when cleaning sideways, it sprays with the side nozzle.
Transport bag
The robot comes with a convenient, sturdy transport bag, in which the robot can be conveniently stored at home or transported to another place.
It took longer to launch
Starting to use this robot can be quite complicated. After attaching itself to the window and initiating the cleaning program, it began cleaning after about a minute. However, during the cleaning process, it frequently stopped, requiring us to restart the program. Similarly, the spray mode would only activate after a certain delay, rather than immediately after pressing the remote control. Additionally, there was a noticeable delay in the robot's response to button presses.
The robot comes with voice messages and can be controlled via a remote control. Although the voice messages are clear, the robot itself is quite loud. We were pleasantly surprised with the quality of its mops, but unfortunately, the cleaning performance was disappointing. The robot kept getting stuck and we had to restart the cleaning program and repeat instructions with the remote control. Additionally, it could not reach the entire window area, especially the edges, and sometimes it just rotated in one place. Even after several cleaning cycles, streaks remained.
ECOVACS W2 OMNI
The Ecovacs W2 OMNI Pro window cleaning robot is a very popular choice. This robot works well, moves smoothly on the surface, reaches the entire area of the window, comes close enough to the edges and sides of the window, and does not crash into the frame. The robot firmly attaches itself to the surface. It also has a water spray system that helps clean the window more efficiently. The robot is controlled by an app and has sound signals.
The robot is controlled by an app and has sound signals. At first, we had a bit of trouble trying to connect to the app, but once connected, the app was very responsive and performed the actions we wanted. We found that this robot is quite loud compared to other models, so it can be difficult to clearly hear and understand its voice programs and signals.
Smooth movement
The ECOVACS W2 OMNI window cleaning robot surprised us with its smooth movement. The robot went around the entire area of the window, reached the corners and edges of the window, and also returned to its original position after the cleaning program.
Suction is too strong
The 5500 Pa suction creates strong firm grip on the glass, which improves stability but also increases resistance, leading to slower movement and longer cleaning times—especially on large surfaces. The strong suction presses the cloth too tightly against the glass, often leaving streaks and making it harder to clean older or stubborn dirt effectively.
Mamibot W200
Mamibot W200 wireless window cleaning robot – after unpacking it turned out to be high-quality, made of strong materials, and easy to hold. Although a bit larger and heavier than other models, it quickly and firmly attached to the window. This robot is rechargeable and wireless. Its safety rope has an unconventional shape, instead of the usual carabiner attachment, it is a round plastic part that needs to be attached to the surface to be cleaned. This robot is controlled by a remote control, it can easily change direction and program. The cloths absorb moisture well, after several cleanings the robot cleaned the dirt well enough.
Wireless
The uniqueness of this robot is that it is rechargeable and does not require a power outlet in a convenient place for its operation. This is very convenient if you want to clean windows in places where there is no electricity supply, you don't like long robot cables (they can interfere with flowers, curtains or other objects in the room near the cleaned surfaces). You can use a safety rope for extra security.
Does not have a water spray system
This robot may move smoothly and quickly on the surface, but to achieve high-quality window cleaning, you will need to spray the window with cleaning liquid yourself. Additionally, it's important to moisten the cloth before cleaning, as cleaning with a dry cloth may result in a worse outcome compared to using window robots equipped with a spray system.
HUTT C65
The robot’s water spraying system was disappointing – although the liquid was sprayed evenly during cleaning, after removing the robot from the window, water began to drip through the gaps. Although the robot moves smoothly through the window, it can reach the edges, but we noticed that it leaves round, cloth-shaped sections when cleaning in places. It also emits an audible signal when cleaning the edge of the surface, which can annoy householders.
Did not return to the starting point
This part is very important for a quality window robot. We attached the robot and turned it on in one place, but after finishing the program, it stopped in another. If it had stopped high, at the top of the window, it would have been difficult to remove it.
Well, another important detail is the control of the robot. The robot can be controlled by a remote control or an app. It took some time to install the app on the smartphone. In the first attempt, the robot could not be connected, it was difficult to “catch” the Bluetooth signal, but after connecting, the robot worked smoothly. Also, automatic control of the robot with arrows did not work, so if the robot ends the program at the top of the window, it can be difficult to remove it.
HOBOT-2S
We decided to test the HOBOT 2S window-cleaning robot as it is sold by a well-known brand and has received many positive reviews on Amazon and other sites. Our experience with it aligns with the positive reviews – the robot has a compact and convenient design, high-quality cloths that cover a large surface area for efficient cleaning. The robot also features two nozzles for cleaning liquid that continuously spray window liquid or water, making it highly effective at cleaning surfaces.
Speed
This robotic window cleaner can clean a square meter of surface in just 2.4 minutes, making it faster than other square window robots.
Stops during cleaning
During one cleaning session, the robot got stuck at the top of the window. It is possible that it ran out of water in the system or the surface was too wet. Despite returning to its original position after completing the program, the robot did not respond to the remote control and the app. It made voice messages but it was impossible to remove it without climbing higher and taking it out manually. This situation can create problems when cleaning high windows since it can be difficult to remove the robot without the help of additional tools, such as a ladder.
The HOBOT S2 window cleaning robot can be controlled either through a remote control or an app. However, our experience of connecting the app was complicated and confusing as it required pairing codes. After finally managing to connect the app, we faced issues with the remote control as it didn’t work properly. We were unable to adjust the robot’s position to point it downwards or toward other directions with the remote control. Therefore, we recommend using the robot with the remote control only.
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Eva Jansen is a home product reviewer with a passion for practical, tech-savvy solutions that improve everyday life.
She focuses on useful tools that make daily routines easier — from robot window cleaners to eco-friendly cleaning products. Eva carefully tests each item and shares honest, hands-on reviews to help people find what truly works in a modern home.
EvaJansen@pickyexperts.com