Window cleaning robot HESTER M3
April special offer -25% off!
Meet the next generation of window cleaning – 2026 model HESTER M3.
- Hydro360 Spray System: Multi-angle spray for powerful, streak-free cleaning.
- 99% Coverage: Cleans from corner to corner with no missed spots.
- Dual Cleaning Sheets: Yellow lifts grime, blue polishes for a sparkling finish.
- Anti-Slip Wheels: Nano-coated wheels ensure stability on wet surfaces.
- Trusted by thousands of happy customers!
5 Years warranty
Free delivery in 1-2 days
No hidden fees
Safe and Secure payment
469.99$
351.75$
469.99$ 351.75$
Powerful and Precise
Next generation window cleaning robot
Hester’s innovative edge technology takes smart cleaning to new heights. With advanced sensor system, the robot ensures superior side cleaning and thorough corner reach, tackling areas often missed by traditional cleaners (older window cleaning robot versions). Clean corners are essential for a polished look, making your windows shine from edge to edge.
True full-surface cleaning with EdgeSense technology
Up to 99% clean windows
Perfectly Clear Windows with Hydro360 system
More Powerfull and Targeted Spraying
Gentle contact
Tough on Dirt, Easy on Surfaces.
The upgraded spray nozzles deliver more powerful and precise spraying, effectively breaking down even stubborn and long-standing dirt.
This ensures a deeper clean with less effort, leaving windows spotless every time.
Clean And Shine Duo
First robot to have
Cleaning steps
Dry Cleaning
In the first step, use the yellow cleaning cloth dry (without spray). This removes loose dust, dirt, and surface particles.
Tip: Replace with a clean yellow cloth before moving to step 2.
Wet Cleaning
In the second step, use a new yellow cloth and enable the spray function. This loosens stuck on grime and removes deeper dirt buildup.
Tip: Avoid cleaning in direct sunlight or on hot glass surfaces – the liquid may dry too quickly, making it harder to clean and leaving streaks behind.
Always use a fresh cloth for optimal performance.
Polishing
For the final step, switch to the blue polishing cloth, made with a special texture that enhances shine. No spray is needed. This dry pass removes any remaining streaks or haze, leaving the glass perfectly clear and streak-free.
Cleaning Steps
Speak in your native language!
An advanced voice technology that provides real-time updates on the robot’s actions, status, and progress. With clear and precise vocal notifications, users stay informed effortlessly, ensuring a smooth, intuitive, and connected cleaning experience.
and 10+ other languages!
Window cleaning robot HESTER M3
April special offer -25% off!
Meet the next generation of window cleaning – 2026 model HESTER M3.
- Hydro360 Spray System: Multi-angle spray for powerful, streak-free cleaning.
- 99% Coverage: Cleans from corner to corner with no missed spots.
- Dual Cleaning Sheets: Yellow lifts grime, blue polishes for a sparkling finish.
- Anti-Slip Wheels: Nano-coated wheels ensure stability on wet surfaces.
- 85,500+ satisfied customers.
5 Years warranty
Free delivery in 1-2 days
No hidden fees
Safe and Secure payment
469.99$
351.75$
469.99$ 351.75$
Adaptive Cleaning System
Four cleaning paths
Combination of N and Z trajectories (for the most effective cleaning. Ensures that the entire surface is cleaned effectively.
The window cleaning robot moves vertically, up and down over the entire surface area. For tall or narrow windows.
The robot moves horizontally, from one side of the window to the other, forming the letter Z. For wide or rectangular windows.
Powerfull stain removal where it’s needed most. Window cleaning robot focus on a specific area with concentrated dirt, applying extra cleaning cycles for best results.
AI Mapping
AI Mapping technology enables the robot to scan the window and plan the most efficient cleaning path. The AI-driven system maps the window, avoids obstacles, tracks progress, and remembers cleaned areas. It ensures no spot is missed and automatically returns to its starting point after completing the task.
AI Mapping
AI Mapping technology enables the robot to scan the window and plan the most efficient cleaning path. The AI-driven system maps the window, avoids obstacles, tracks progress, and remembers cleaned areas. It ensures no spot is missed and automatically returns to its starting point after completing the task.
Where to use the window robot HESTER M3?
The HESTER M3 window cleaning robot is not only capable of cleaning window surfaces, but it can also be a great aid for cleaning various glass surfaces and partitions. Additionally, it can be employed for the maintenance of large offices, workspaces or shop window areas.
For various types of windows: standard, panoramic, frameless
For glass surfaces and marble walls
For offices, work spaces, shop windows, restaurants
For balconies, terraces and exterior glass surfaces
Technical Specification
Input Voltage | 100-240V, 50Hz/60Hz |
|---|---|
Rated Power | 72W |
Suction Force | 3000 Pa ±10% for secure grip and efficient cleaning |
Water Tank | 100ml |
Built-in Battery | 500mAh |
Power Outage Protection Time | Stays attached for up to 20 minutes if power fails |
Charging Time | 3.5 hours |
Control Mode | Remote Control |
|---|---|
Noise | 65-70dB |
Edge Detection | Automatically Detects Window Borders |
Anti-fall Control | Power loss protection + Safety rope for extra security |
Cleaning Mode | 4 Auto Modes + Manual |
Water Spraying Method | Manual / Auto |
Size | 216*216*69mm |
What's in the box?
Everything you need to start cleaning with HESTER M3
Window robot HESTER M3
4 Cleaning Cloths
2 Polishing Cloths
Remote control
Power cord (adapter)
Safety rope
Bottle for liquid
Instruction
Window robot HESTER M3
2 Polishing Cloths
Power cord (adapter)
Bottle for liquid
4 Cleaning Cloths
Remote control
Safety rope
Instruction
Join more than 25,300+ families looking at the world through clean windows
We are the official representatives of the HESTER brand in America and Europe
5-year warranty
Enjoy a 5-year warranty!
Best price guarantee
For the highest quality product at the best price, purchase directly from official HESTER representatives.
Free delivery
We offer free shipping across America and you can expect your order to be delivered within 1-2 business days.
Get in touch
by mail: info@hesterpro.com
Frequently asked questions FAQ
The window cleaning robot can effectively clean both the exterior and interior of windows, even those that are hard to reach. It can be used to clean standard, panoramic, and frameless windows, making it a versatile tool for maintaining the windows in homes, offices, workspaces, shops, and restaurants.
The window robot is a cleaning device that utilizes state-of-the-art technologies and automated movement. It firmly attaches to the window and moves according to the selected mode, allowing you to effectively clean various types of dirt such as dust, pollen, rain and fingerprint stains without leaving any streaks.
Robots can clean more than just windows! The HESTER M2-PRO window cleaning robot will effectively clean mirrors, glass surfaces, tiles, shower cabins, terrace glass, and other similar smooth surfaces. Edge sensors determine the cleaning trajectory, so the device is suitable for use on frameless surfaces.
The HESTER M3 window cleaning robot cleans windows faster than many other models on the market by evenly spraying liquid. The innovative spray system integrated into the robot evenly distributes the liquid in 0.1 ml with each spray with two metal nozzles. You will activate the spray with the remote control, after selecting the cleaning program and pressing AU (automatic spray).
The robot is controlled by a remote control.
The remote control can be used to select the cleaning program, the direction of movement of the robot, and turn on the spraying system.
The HESTER M3 window cleaning robot comes with a 5-year warranty.
Robot window cleaning is a completely safe process. The 80 W vacuum motor attaches and vacuums with a power of up to 2800 PA, which allows the robot to be firmly attached to the window. Also, the safety of the robot is ensured by a UPS battery and a special rope. The UPS battery is integrated into the device and acts as an additional source of energy in the event of a power failure. It keeps the robot on the glass for up to 25 minutes. A safety rope will save the device if the battery runs out or if the robot slips off the glass. It will keep it from falling to the ground and keep it in the air until you’re ready to bring the robot safely into your home.
It is possible, but it is important to pay attention to the outside temperature. It is not recommended to use the robot when it is raining, snowing or when the temperature drops below +5°C. In these weather conditions, it will be more difficult to achieve good cleaning results. When freezing, the robot may slide on the surface and not be able to complete the cleaning cycle properly.
The HESTER M3 robot has a 100ml tank. To use wet cleaning and to clean windows with a spray system, it is necessary to fill the container.
We recommend filling the reservoir with your favorite high-quality window cleaner, which will increase the cleaning efficiency. After filling the tank with water, cleaning results may vary. The set also includes a small bottle/funnel, which will help you fill the container more easily.
The robot is highly intelligent, which means that it can do almost all of the work on its own. All you need to do is put on the clothes, connect the robot to the power source, and attach the safety rope. Once the robot is ready to go, place it onto the surface you want to clean and press the power button. The robot’s powerful suction will hold it firmly in place. You can then use the remote control to select your preferred cleaning program. If the cleaning cloth becomes dirty during the process, or if you wish to polish the window, simply replace the old cloth with a new one and continue cleaning.