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Key Features
- Bagless design for easy emptying and cleaning
- 98.55 Watt power, 5500 Pascal suction, for flat glass windows
- Lithium 4500mAh battery, up to 110 min, 3 hour charge
- WIN-SLAM 4.0 navigation, Ecovacs App control, 12-stage safety
Key Specifications
- Brand:
- Ecovacs
- Model Number:
- WG851-11
- Suction Power (Pa):
- 5500
- Surfaces:
- All flat glass windows
- Bagged/Bagless:
- Bagless
- Battery:
- Lithium 4500mAh, up to 110min
- Sensor Technology:
- A gravity acceleration sensor- to keep the machine stable at all times an optocoupler sensor- to detect edges with a superfast 0.2 second response time
Capacity
- Capacity:
- Cleaning Solution: 230ml
Power & Charging
- Power:
- 98.55W
- Run Time (Up To) Minutes:
- 110
- Charging Time (Up To) Hours:
- 3
Options
- Programs:
- Fast Cleaning Mode, Deep Cleaning Mode, Thorough Cleaning Mode, Edge Cleaning Mode, Spot Cleaning Mode, Zone Cleaning Mode, Heavy-Duty Cleaning Mode
Smart Features
- Smart Home Compatible:
- Control via Ecovacs App
General Information
- Type:
- Robot Vacuum
- Colour:
- White
- Supplier Colour:
- White and Grey
- Min Noise Level (dBA):
- 63
- Additional Features:
- The exclusive Three-nozzle Wide-angle Spray Atomization Technology and WIN-SLAM 4.0 intelligent planning keeps your window clean as new. Also, the 12-stage safety feature ensures you can look out your spotless window with absolute peace-of-mind
- What's In The Box:
- 1x Robot, 1x Safety tether, 2x Cleaning pads (sets), Instruction manual, 1x Cleaning solution
Warranty
- Manufacturer's Warranty:
- 2 Year
Capacity
- Capacity:
- Cleaning Solution: 230ml
Options
- Programs:
- Fast Cleaning Mode, Deep Cleaning Mode, Thorough Cleaning Mode, Edge Cleaning Mode, Spot Cleaning Mode, Zone Cleaning Mode, Heavy-Duty Cleaning Mode
General Information
- Type:
- Robot Vacuum
- Colour:
- White
- Supplier Colour:
- White and Grey
- Min Noise Level (dBA):
- 63
- Additional Features:
- The exclusive Three-nozzle Wide-angle Spray Atomization Technology and WIN-SLAM 4.0 intelligent planning keeps your window clean as new. Also, the 12-stage safety feature ensures you can look out your spotless window with absolute peace-of-mind
- What's In The Box:
- 1x Robot, 1x Safety tether, 2x Cleaning pads (sets), Instruction manual, 1x Cleaning solution
Base Station Dimensions
- Base Station Height (mm):
- 310
- Base Station Width (mm):
- 170
- Base Station Depth (mm):
- 310
- Base Station Weight (kg):
- 5.5
Robot Vacuum Dimensions
- Vacuum Only Height (mm):
- 77
- Vacuum Only Width (mm):
- 271
- Vacuum Only Depth (mm):
- 271
- Vacuum Only Weight (kg):
- 1.6
Box Dimensions
- Box Height (mm):
- 395
- Box Width (mm):
- 320
- Box Depth (mm):
- 390
- Box Weight (kg):
- 9
Product Reviews of Ecovacs Winbot W2 Pro OMNI Robotic Window Cleaner

Overall Rating Snapshot
4.7 out of 5 stars from 29 reviews
97% of users recommend this product
What customers say, summarised by AI
- Cleans windows thoroughly, especially helpful for large or hard-to-reach glass.
- Strongly recommended to buy extra pads for better results, especially on dirtier windows.
- The robotic cleaner saves significant time and effort on regular window cleaning.
- Easy to use, with intuitive controls and simple app connectivity.
- Works well on various glass surfaces; minor streaks can occur without clean pads.
- Some issues with narrow or oddly shaped windows, and cleaning solution is costly.
Pros
Cons
Works better than expected
Very happy with the winbot. It cleans the windows better than expected. It helps to buy some extra cleaning pads to swap on for each window. Great for cleaning the exterior of our upstairs windows.
Jason
Confirmed purchase 29 August 2026
Published on 22 September 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Perfect for large windows and sliding doors
Significant reduction in effort required to clean homes with large windows and sliding doors. Results are impressive, just need to change the rotate the microfibres pads as they become dirty and keep the cleaning fluid topped up.
Bill
Confirmed purchase 19 August 2026
Published on 19 September 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Save tome
Works better than I could ever have imagined. Love it
Sue
Confirmed purchase 7 August 2026
Published on 2 September 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Works better than I could have imagined. Love it.
Sue
Confirmed purchase 7 August 2026
Published on 2 September 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Works well
Overall - happy with my purchase. Windows come up well after cleaning, easy to use and long usage between charges. Worth getting some extra cleaning pads so that they're always clean.
DT
Confirmed purchase 29 June 2026
Published on 30 July 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Works well
So far so good with the window robot. It does exactly as it says on the box - washes windows automatically. That said, it’s amazing if it’s used consistently - windows look great. If the window is extra dirty, it may require multiple cycles AND wash pads. Overall, happy with the purchase.
Darren T
Confirmed purchase 29 June 2026
Published on 22 July 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Ecovac winbot W2
Intuitive setup and easy to use. Does a great job for big windows
Zach
Confirmed purchase 21 June 2026
Published on 15 July 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Awesome Deal
First use pretty impressive, design as intended
Alvin
Confirmed purchase 5 June 2026
Published on 1 July 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Nans little helper
I was hesitant to buy this product, I am so glad I took the chance, this is the most amazing product I’ve ever owned. effortlessly cleans my windows, a job I do not like doing. This is a must have item in every home, I think outside the box I do my glass splash-back in kitchen, shower screens. Glass balustrades, I even clean my granite kitchen bench. Large Glass and laminate closet doors.
Nan
Confirmed purchase 5 May 2026
Published on 27 May 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
Easy to set up and use
Loving it
Felix
Confirmed purchase 31 March 2026
Published on 21 April 2026
Yes, I recommend this product.
This customer is a verified purchaser who may have received an incentive in return for providing an authentic review.
You've viewed 10 of 29 reviews
The below information is AI generated based on Australian websites information around this item. We have done our best to ensure its accuracy but suggest verifying any information within this tab before purchasing.
At a glance
The Ecovacs Winbot W2 Pro OMNI is a premium robotic window cleaner for homes with large, tall or awkward-to-reach glass surfaces. It suits busy households wanting easier maintenance on windows, shower screens and glass balustrades, with strong suction, onboard battery cleaning and simple station-based control. Its main limitation is that it is built for flat glass cleaning rather than broader floor-cleaning or specialist non-glass surfaces.
What it’s great for
- Window Cleaning
- Tall Window Maintenance
- Shower Screen Cleaning
- Glass Balustrade Cleaning
- Hard-to-Reach Glass Surfaces
Where it works best
- Multi-storey Homes
- Apartments with Large Windows
- Bathrooms
- Homes with Glass Balustrades
- Rooms with Limited Power Point Access
Who it’s for
- Busy Households
- Apartment Dwellers
- Homeowners with Large Windows
- People with Hard-to-Reach Glass
- Convenience-Focused Cleaners
Things to consider
It is purpose-built for flat glass surfaces, so it is less versatile than robotic cleaners designed for broader whole-home floor cleaning or for specialised surface types.
Pet hair performance score
1/10 - designed for window cleaning rather than collecting pet hair from floors or soft furnishings.
Smart home integration score
4/10 - app support is implied, but the standout control method is the OMNI Station rather than deep smart home integration.
Carpet vs hard floor suitability
Not suitable for carpets or hard floors; designed specifically for flat glass surfaces.
Noise level vs category average
6/10 - at 63dBA, it sits in a moderate range for powered household cleaning devices.
Allergy friendliness
Moderate - helps remove dirt and residue from glass surfaces, but it is not positioned as a sealed allergen-control cleaning system.
Key benefits
- 5500Pa Suction Power: strong suction helps the robot stay attached securely to flat glass while cleaning.
- Up to 110 Minutes Battery Life: allows longer cleaning sessions on windows or glass areas without direct access to a power point.
- OMNI Station Control Panel: lets you start and manage cleaning without relying on the app for every job.
- WIN-SLAM 4.0 Intelligent Planning: helps the robot navigate glass surfaces more methodically around edges and obstacles.
- Three-Nozzle Wide-Angle Spray Atomisation Technology: sprays cleaning solution across a wider area to help loosen built-up dirt.
- Gravity Acceleration Sensor: improves edge awareness to support safer, more controlled movement on glass.
- Bagless Design: simplifies maintenance by avoiding ongoing bag replacement.
- 63dBA Noise Level: operates at a moderate noise level that is manageable for indoor household cleaning.
Q: Can it clean frameless shower screens and glass balustrades safely?
A: Yes. The Winbot W2 Pro OMNI is designed for flat glass, which includes shower screens and glass balustrades as well as windows. It is not intended for curved glass, textured surfaces or floor cleaning, so its use is quite specialised.
Q: Will it work on outside windows without a nearby power point?
A: Yes. The Winbot W2 Pro OMNI runs for up to 110 minutes per charge, which suits glass areas without direct power point access. It is still designed for flat glass only, so it will not replace a general household cleaning robot.
Q: Does it leave very dirty glass perfectly streak free in one pass?
A: No. The spray system and cleaning modes help lift built-up dirt, but heavily soiled glass may still need a second pass. Results also depend on keeping the pads clean, because dirty pads can leave more residue or light streaking behind.
Q: How well does it handle edges, frames and common window obstacles?
A: The Winbot W2 Pro OMNI uses WIN-SLAM 4.0 planning, edge detection and a gravity acceleration sensor to navigate around edges and obstacles. It is designed to stay stable on flat glass, but large protrusions can still interrupt the cleaning path.
Q: Is the Winbot W2 Pro OMNI noisy during indoor cleaning?
A: Ecovacs rates the Winbot W2 Pro OMNI at 63dBA, so it is clearly audible while cleaning rather than near-silent. That suits normal daytime use, but it may be noticeable in a quiet room such as a study, nursery or bedroom.
Q: Do I need the app every time I use it?
A: No. The OMNI Station works as a control panel, so routine cleaning does not depend on opening the app each time. That is useful if you want simple operation at the window, though app control is still available if preferred.



















