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Best Robot Window Cleaners For Glass Doors 2021

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Wondering about which came first, robot vacuums or robot window cleaners is like trying to understand which came first, the chicken or the egg? We’re not fully sure if robot vacuums came first in the market or the robot window cleaners, but one thing is certain: we’re enjoying the perks of technology especially when it comes to reducing our household chores. In this section, however, we’ll talk about robot window cleaners.

First, we’ll discuss a few tips on how you will get the best product for your needs. It’s a crucial part of this article, as it’s also where you will base the features to check when getting a robot window cleaner. After you learn a few points on how to get the best model for you, we’ll share a list of the best robot window cleaners for glass doors this 2021.

Features to Check

Robot window cleaners vary greatly. You will find models of different size, shape, weight, offering different features, strengths, as well as drawbacks. It’s important to know the differences between the robot window cleaners and how it affects how they work. You must look into these features to know if the product you want to buy fits your needs.

These features also determine if they can work well on the type of windows you have. For you to get the right product, it’s important to learn about a few crucial factors like the ones we’ll discuss below.

Attachment Method

Yes, we also wondered about it – about how these robot window cleaners stick to the glass and do its job. There are two ways how these robot cleaners attach themselves to the window and that’s by suction or using a magnet. Most models available today are suction-based. In the early times of window bots, however, magnet-based models are more prevalent than the ones that use vacuums.

As technology progressed, the number of suction-based models increased as the machines and the vacuums used for the devices improved as well. 

Magnet-based models come with limitations when it comes to which kind of glass it can attach itself. These products work by attaching a magnet on the other side of the glass, which is not always viable in all situations.

Magnetic window bots, however, are more secured than suction-based products. You will not worry about the robot window cleaner falling off when it lost power or suction. However, suction-based cleaners are now more common than magnetic units as machines and the vacuums have improved greatly over the years.

Suction-based robot window cleaners can work virtually anywhere. Although it’s usually louder than their magnetic counterparts, these units are more versatile. Window bots with vacuum, however, need safety ropes to avoid an accidental fall.

These robot window cleaners work faster, too, and they can work on various types of surfaces. The attachment method of the product you’re getting is one of the most crucial factors to consider when getting a robot window cleaner.

How It Works


Robot window cleaners move from one point to another using wheel. Some models travel in a circular motion but most window bots have microfiber pads underneath them, which allow it to clean more efficiently. More advanced models are equipped with automatic sprayers and are app integrated, where you can customize settings of the path and other customization options.

Therefore, it’s up to you if you will choose simple robot window cleaners that can work with just a press of a button, or the more advanced models that are app-integrated and allow more flexible customization.


The size of the model you’re getting must be fitting to the size of your window or glass doors. The size of robot window cleaners varies. You can find small models that are just right for average-sized windows. These smaller models, however, finish cleaning slower, too, compared to the larger counterparts.

The larger window bots, on the other hand, can be heavier than the smaller ones. Due to the weight, the larger models have a bigger chance of falling. Bigger window bots, though, most likely finish cleaning faster than the smaller models.


The weight of the window robot you’re getting may not be an extremely critical feature on your purchase. Although, you must still consider the model’s weight especially if you have a delicate and thin glass. The weight of the model you’re getting may cause damage to your glass doors or windows as these devices attach itself on the surface using suction or magnet, which could strain a fragile surface.

Some products also use ropes to assure safety and not fall off. Meaning, you should also consider this factor, and look around if it’s a safe area for you to be assembling the ropes.



Window bots vary in shape as well. You will find dual spinning models, square types, or circular robot window cleaners in the market. The shape of the product you want to get must fit the shape of the surface the robot will work on. Dual-spinning models may not be the best choice for doors or windows with corners, but it may work better on surfaces with round edges.

Typically, for large glass doors, a box-shaped model is the better choice, so it can reach the corners of the glass. Square shaped models are also more prevalent in the market as these robot window cleaners are bigger as well, meaning, it can complete a task faster.


The quality of the window bot’s motor you’re getting will determine its suction power, speed, and its noise. Check the power of the machine when getting a unit especially if you worry about the robot falling off. Strong suction power and high-speed model is always preferable in case you’d opt for suction-based robots.

We always want a model that can finish a task fast, as it won’t only let you complete more house chores in a short span, it will also reduce the chance of the robot falling off the glass. The quality and the power of the machine also dictates the loudness of the robot window cleaner.

If you want to relax while the robot is working, you must take into consideration the noise of the machine. More advanced models today have improved technologies that allow the machines to be powerful yet silent.

Safety Features

A robot window cleaner can be pricey, and there’s always a chance for these devices to fall off from the surface it’s attached. Meaning, looking for safety features is an important factor to check to make sure your investment will be protected as well. Great models are equipped with safety features like extra batteries, LED indicators, voice alerts, and so on.

Extra batteries keep the devices safe as they act as a back-up power source when the suction power of the robot lowers down. LED indicators are also a helpful way to know when you need to recharge the device, as well as voice alerts, allowing you to have more freedom and fewer worries about the robot falling off.

Technology Used

Some models are equipped with AI technologies for more cleaning. Other manual window robots do clean surfaces on a random route, which can complete a task in a decent span. More advanced models with cutting edge AI, however, can perform better and faster. These robot window cleaners are equipped with sensors to track the areas that it already cleaned.

Thus, reducing the amount of time for cleaning. Some models even provide a multi-step cleaning system, which leaves an extra-sparkly finish. Meaning, techy or not, you will enjoy the perks of a device that’s equipped with AI technology that can further improve its performance.

7 Best Robot Window Cleaners for Glass Doors

Now that you know the features to consider when getting a robot cleaner, it will be easier for you to find the exact model you’re after. There are a bunch of choices in the market today, and looking at the tags, getting a window bot sure is a hefty investment.

Therefore, it’s just wise to be careful in getting the model for your needs. Below are just 7 of the best robot window cleaners we think you might like. We’ll share with you every model’s features, highlights, pros, and cons. 



The ECOVACS WINBOT W830 has a powerful machine and can work on vertical glass surfaces whether textured, tinted, or frosted. With its powerful machine, it provides great suction to attach well on the window or glass door. It’s easy to use and has back-up batteries for safety as well as pods and tether. This model costs less than other leading window bots. However, it leaves streaks on textured windows, and it can be fairly loud.

Summary of features: ECOVACS WINBOT W830

  • Dual suction cups
  • Comes with back-up batteries
  • 2.14 pounds in weight
  • 3-Step Operation: Spray, Power On, Start
  • Pathfinder navigation
  • Smart suction fan
  • 1 Year Warranty
  • 2 AAA batteries
  • Fair price

With dual suction cups, you wouldn’t worry about ECOVACS WINBOT W830 falling off from where it’s attached. Not to mention it’s also equipped with back-up batteries, assuring its safety if ever the robot runs out of power in the middle of its task. We love that this unit is lightweight, only weighing 2.14 pounds. The ECOVACS WINBOT W830 is also easy to operate. It will only take you a three-step process to get it starting. First, you will have to spray a cleaning solution on the surface, turn on the window bot, and let it do its job.

The navigation of the ECOVACS W830 is also excellent, which can calculate a cleaning path, supporting efficiency and speed. It can also avoid obstacles and edges, meaning, it can also work safely on its own. This product can work on different glass types, too, whether frosted, textured, or thermopane. For us, the best selling point of the ECOVACS WINBOT W830 is its price. With this product, you can get the same perks you can have from more expensive units and save a couple of bucks when you chose this robot.

The downside, however, is it can be a bit loud when working. It also leaves streaks when cleaning, which can be a huge drawback if you’re after spotless, sparkly cleaning.

Below are the pros and cons of ECOVACS WINBOT W830:


  • Powerful machine
  • Back-up batteries
  • Lightweight
  • Smart pathfinder
  • Works on different glass types
  • Fair price
  • Easy to use
  • Strong suction vacuum


  • Can be loud
  • Leaves streaks

Product rating: 5.8

Where can I buy ECOVACS WINBOT W830

#2 Hobot 198 Glass Cleaning Robot


This bad boy is smart and sleek, and we’re not talking about that overly-confident office guy everyone loves. We’re talking about the Hobot 198 Glass Cleaning Robot. This robot, too, is loved by a lot of consumers due to the performance it offers. It’s an efficient window bot that can work through a mobile app or its remote control. The catch, on the other hand, is it’s a bit slow and it’s on the expensive side.

Summary of features: Hobot 198 Glass Cleaning Robot

  • 2 pounds in weight
  • AI integrated
  • 4 minutes per 2 meters cleaning speed
  • Anti-falling control algorithm
  • Auto-detects edges of the window
  • High sensitivity pressure sensor
  • Micro-fiber cloth
  • High-strength safety rope and buckle
  • Remote control
  • Mobile App Available
  • 80W power consumption
  • 4-meter power cord

First, let’s talk about Hobot 198’s design. As mentioned, it’s a sleek and compact unit that travels in a zigzag path. You will find most of the buttons on the top part of the unit, as well as the holes where you can attach the safety strings. You will also find the vent, light indicators, power switch, and the power jack. The bottom part is the cleaning rings, where the microfiber pads are attached. Overall, the aesthetic appeal of the Hobot 198 is quite unique. Unlike other square-shaped models, this model is somewhat circular, supporting its efficiency in cleaning.


We like that this model gives an option to use the remote and a smartphone app. Although there’s not a lot of difference between the physical remote and the interface of the app, having these options bring convenience. The window bot utilizes a strong centrifugal fan to attach itself to the surface. With a strong suction power, it’s typically safe from falling, still, the robot has strings to assure safety if ever it detaches from the surface.

We also like that the Hobot 198 doesn’t have driving wheels to move from one point to another. Rather, its cleaning wheels with microfiber cloths allow it to move, leaving no trace when cleaning glasses. This model also works great on different surface types whether it’s rough glass, mosaic, plain glass, and so on. The downside, however, is it can be a bit slower than other models when it comes to finishing tasks. It’s also quite expensive, so if you have a tight budget, you might want to consider other products.

Below are the pros and cons of Hobot 198 Glass Cleaning Robot:


  • Smart window robot
  • Comes with added safety features
  • Can detect edges and obstacles
  • Compact
  • Lightweight
  • App integrated
  • Anti-fall technology
  • Works on different glass types


  • Relatively slower than other models
  • Corded
  • Expensive

Product rating: 6.6

Where can I buy Hobot 198 Glass Cleaning Robot

#3 Hobot 268 with Remote Control


The Hobot 268 is smart and efficient. With its size, it can be a great choice for large glass windows and doors. This model is AI-equipped, though it doesn’t have a smartphone app that you can use for controlling. It has, however, a remote control that you can use from afar to make the robot work. This model is versatile, too, it performs well on different glass and surface types. It’s built with UPS (uninterruptible power supply) for added safety in addition to the tethers in case it detaches from the surface. No doubt, it’s a great robot window cleaner. However, if you’re after a sparkly-clean finish, this might not be the product for you, as it leaves marks after. The power cord also has tendencies to get tangled, which can be a bit annoying.

Summary of features: Hobot 268

  • Safe to use for any thickness glass
  • AI-equipped S1.0
  • Offers speed of 2.4 minutes per 2 meters
  • 3 automatic operation modes
  • Stops automatically upon completion of cleaning
  • Equipped with UPS (Uninterrupted Power System)
  • Laser sensors can detect edges of windows
  • Has an anti-falling control algorithm
  • Comes with high-strength safety rope (150Kgf) and buckle
  • Comes with a remote control
  • 72W power consumption

The design of Hobot 268 is pretty straight forward. It’s a square-shaped model with microfiber pads underneath and caterpillar rollers for movement. It uses air suction to attach itself on the surface with the power-on button and an indicator on top of it. We like that the color is white and black, which appears clean and minimalistic. The model’s shape also aids in getting into the sharp edges of the glass.


You will get three cleaning modes from Hobot 268. Equipped with AI, the robot cleans in a systematic pattern moving from left to right, then up and down. You can also use the manual mode for spot cleaning, where you will have to use the remote control or press the buttons of the model. Equipped with a durable tether, you won’t worry about the robot falling off. The product also has an anti-falling control algorithm, which adds to its safety features.

The Hobot 268 works well on different glass types whether it’s a window film, mirror, rough glass, mosaic, tiles, and so on. The robot is pretty quick, too. It can complete cleaning a 2-meter area within 2.4 minutes, and it automatically stops when it has finished its task.

The downside, on the other hand, the model has tendencies to trip over its long 4-meter power cord. It also leaves subtle marks on the areas it cleans. Meaning, it may not be the best product if you’re after a gleaming finish. You might also experience some difficulties using the remote control due to the location of the remote control sensor.

Below are the pros and cons of Hobot 268



  • AI integrated
  • Good for large glass windows and doors
  • With multiple safety features
  • Cleans fast
  • Can detect edges
  • Easy to use
  • 3 cleaning mode options


  • Leaves marks after cleaning
  • The power cord tends to tangle up

Product rating: 6.8

Where can I buy Hobot 268

#4 Mamibot iGlassbot W120 Robotic Window Cleaner


The Mamibot iGlassbot W120 Robotic Window Cleaner is probably one of the underrated and overlooked models in the market that deserves to be noticed. This robot window cleaner is smart, slim, and effective. It works well on different surface types, not only glass but also tiles and marble. The Mamibot iGlassbot W120 is a smart window bot, equipped with multiple safety features as well as AI for efficient cleaning. The drawback, however, for extremely dirty windows, with thickly caked dust, you will have to manually reduce the amount of dirt first before using the robot.

Summary of features: Mamibot iGlassbot W120 Robotic Window Cleaner

  • 4.96 pounds in weight
  • 75W power
  • 600mAh battery
  • 1 hour charging time
  • less than 65dB noise level
  • 3000Pa Suction Power
  • 2.5 minutes per sqm cleaning speed
  • AI integrated
  • Smartphone app available
  • Multiple cleaning modes
  • Anti-fall sensors
  • Equipped with safety ropes
  • 9.5 cm slim
  • 1 Year Warranty

Fast, efficient, and smart – seems like the Mamibot iGlassbot W120 Robotic Window Cleaner has everything you’d ask for a window bot. It’s 9.5 cm slim, perfect for cleaning corners and windows with limited spaces. You can control the robot using a remote control or a smartphone app. Three cleaning modes are available: APP, One-touch Key, and Remote. This robot window cleaner is fast, too, with a speed of 2.5 minutes per sqm.

When it comes to the design, we love the clean and minimalistic white, gloss finish. There’s a light indicator on top of it for the battery, as well as a power button, the power source, and a safety lock hole for the ropes. The Mamibot iGlassbot attaches itself on the surface using suction with a powerful 3000Pa. This robot also has a built-in UPS battery, which allows the unit to remain attached on the surface for 20 minutes and sends an alarm when it runs out of power.

The Mamibot iGlassbot W120 works quietly, too, producing less than 65dB noise level. There are many things to love about this robot window cleaner, however, it also comes with a minor drawback. It can’t completely clean extremely dirty surfaces with stubborn caked dust. In such cases, you will need to help the robot by doing slight pre-cleaning to remove the dirt.

Below are the pros and cons of Mamibot iGlassbot W120:


  • Fast
  • Slim
  • Versatile; works great on different surfaces
  • AI integrated
  • Smartphone app available
  • Equipped with multiple safety features
  • Strong suction power
  • Silent


  • Cannot handle heavy dirt

Product rating: 8

Where can I buy Mamibot iGlassbot W120

#5 Ecovacs Winbot 880


The Ecovacs Winbot 880 is one of the best choices for large glass windows and doors that come with minimal drawbacks. It has intuitive remote control and is equipped with Ecovacs WIN-SLAM™ 2.0 Technology, which allows it to navigate intelligently across the surface it cleans. It can also detect edges for both framed and unframed surfaces with its advanced Edge Detection Technology. The catch, however, sometimes it leaves streaks that are visible on the glass.


Summary of features: Ecovacs Winbot 880

  • 3.96 pounds in weight
  • Path planning technology
  • 5-layer decontamination pad
  • Edge detection technology
  • Multiple safety systems
  • 2800PA suction power
  • 30-minute backup battery
  • High elastic rope + load-bearing suction cup
  • Remote control
  • Smartphone app available
  • 1 Year Warranty

The Ecovacs Winbot 880 is a smart robot window cleaner, equipped with multiple smart systems for efficiency and safety. The 5-layer decontamination pad and squeegee work great for thorough cleaning of surfaces where the robot passes an area four times to assure a satisfying finish.

With the product’s Win Slam 2.0 Technology, it can travel across surfaces intelligently, choosing a path that’s the most efficient while also avoiding obstacles. The robot can also return back to where it started, which is useful when cleaning high areas, so you won’t have to get it from where it finished working.

The Ecovacs Winbot 880 features multiple safety systems including elastic ropes and a 30-minute backup battery in case the robot suddenly runs out of power. It’s easy to use, too, using the remote control and a smartphone app, which are both intuitive. The only drawback we noticed about the Ecovacs Winbot 880 is it leaves streaks occasionally that are visible on the glass.

Check out the full product review for the Ecovacs Winbot 880 here

Below are the pros and cons Ecovacs Winbot 880


  • Intuitive controls
  • Powerful suction power
  • Multiple safety features
  • Smart path cleaning
  • Can detect obstacles and edges
  • App integrated


  • Leaves streaks occasionally

Product rating: 7.8

Where can I buy Ecovacs Winbot 880

#6 Ecovacs Winbot X Automatic Window Cleaning Robot


The Ecovacs Winbot X is a winner of the 2018 CES Innovation Award, and that probably means something. This advanced robot window cleaner is equipped with a four-stage cleaning system for thorough cleaning. It also has a strong suction power, allowing it to attach itself on the surface safely. The product’s Ball Sensors allow the model to detect edges, reducing the risk of the robot of falling. It’s no doubt, an advanced efficient cleaning tool for glass doors and windows. However, it still comes with small drawbacks like it’s a bit slow, and requires you to buy additional pads and solution.


Summary of features: Ecovacs Winbot X

  • 4.85 pounds in weight
  • Four-stage cleaning process
  • The powerful suction of more than 3.5 kpA
  • Automatic safety system
  • Safety pod and tether
  • Easy to use
  • Can detect edges
  • Smart Drive’ pathway system

Let’s talk about design. The Ecovacs Winbot X has sophisticated and clean aesthetic features, which seems fitting for a modern home. However your home looks like, this robot can still be the product you’re looking for if you want a robot window cleaner that’s efficient and simple to use.

The model boasts a four-stage cleaning process, allowing thorough cleaning of your glass windows and doors. It uses powerful suction to attach itself on the surface and keep the robot safe from falling. It also has back-up tether and pods to further improve its safety features if ever it detaches from the surface.

The Ecovacs Winbot X has a Smart Drive’ pathway system, which allows it to intelligently navigate across the area it cleans. It also works with minimal noise, which is an excellent feature, allowing you to use the product any time without thinking of disturbing anyone. The drawback, however, this product is pricey for the perks it offers. There are also occasions that the robot gets stuck in an area it cleans.

Below are the pros and cons Ecovacs Winbot X



  • Strong suction power
  • Navigates intelligently
  • Multiple safety features
  • Relatively more silent than other models
  • Detects edges
  • Can perform a thorough cleaning


  • Expensive
  • Has tendencies to get stuck

Product rating: 2.8

Where can I buy Ecovacs Winbot X

#7 Gladwell Gecko Robot Window Cleaner


The Gladwell Gecko Robot Window Cleaner is the perfect model for smaller glass windows and doors due to its compact size. It’s also a great choice for a robot window cleaner if you’re looking for a simple yet AI-integrated window cleaning machine. However, this model seems to experience issues when cleaning corners.


Summary of features: Gladwell Gecko Robot Window Cleaner

  • 4.97 pounds in weight
  • Intuitive cleaning technology
  • Equipped with safety ropes
  • Can be controlled with a remote control
  • Smartphone app-integrated
  • Can perform a thorough cleaning
  • 1 Year Warranty

This compact robot is equipped with an intuitive cleaning technology, allowing it to detect corners, edges, and other obstacles that could cause it to detach from the surface. When it comes to safety, the Gladwell Gecko Robot Window Cleaner has ropes to assure it won’t fall in case it loses power.


We also love that the Gladwell Gecko has two options for control: using a remote control and an integrated smartphone app. You can also make it work by pressing the buttons on the unit, which also gives you the option to choose a cleaning path. This robot window cleaner uses powerful suction to attach itself on the surface it cleans. However, you may need to moisten the area it will work on if the amount of dirt is heavy. With its washable cleaning pads, you will get to save a couple of bucks as you won’t need to purchase such materials every now and then. This robot works great not only on glass but also on other surface types like tiled walls, and floors.

If you’re looking for a budget-friendly window bot, you must consider the Gladwell Gecko Robot Window Cleaner. The downside, however, is it can struggle with cleaning corners due to its shape and cleaning pattern.

Check out the full product review for the Gladwell Gecko Robot Window Cleaner here.

Below are the pros and cons of Gladwell Gecko Robot Window Cleaner:


  • Compact
  • Intuitive cleaning system
  • Equipped with ropes for safety
  • App integrated
  • Works on multi-surface types
  • Budget-friendly


  • Has tendencies to struggle cleaning corners

Product rating: 8.2

Where can I buy Gladwell Gecko Robot Window Cleaner


We know how hard it is to clean glass windows and doors, especially if you have large ones that go from the ceiling to the floor. You will need to get a ladder and a few safety measures just to keep your glasses clean. That’s why robot window cleaners are a great addition to your cleaning tools.

These devices will help reduce your household chores and also keep you safe from possible accidents. We hope you find this list of the best robot window cleaners for glass doors 2021 valuable. Let us know if you think you found the product you’re looking for among the models we talked about here. We’d love to hear from you in the comment section below!

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