The Ecovacs Winbot W2S Omni is a window cleaning robot that runs on battery or plugged in, with a portable station that doubles as charger and carry case. It is a capable, safety minded robot, but at $599.99 it costs $100 more than the very similar W2 Pro Omni, so buy it only if you find it for the same price or less.
What the Ecovacs Winbot W2S Omni is
The Winbot W2S Omni is a square window cleaning robot from Ecovacs. It clings to glass with suction, sprays cleaning solution and wipes with a microfiber pad while it maps the pane Ecovacs W2S Omni ↗. It works on flat windows with or without frames, tilted up to 45 degrees Ecovacs W2S Omni ↗.
It comes with an all in one station that acts as the charger, control panel and storage, with a carrying handle Ecovacs W2S Omni ↗. The robot has a 4,500 mAh battery rated for about 110 minutes per charge in cordless mode, and can also run plugged in Ecovacs W2S Omni ↗. Charging takes 3 hours or less Ecovacs W2S Omni ↗.
The robot itself is about 27 by 27 cm and weighs 1.95 kg Ecovacs W2S Omni ↗. It needs glass at least 3 mm thick and windows at least 30 by 40 cm Ecovacs W2S Omni ↗. You control it with the Ecovacs Home app, which includes a 360 degree remote control mode Ecovacs W2S Omni ↗.
What it does well
Safety features are solid. A composite safety rope is rated up to 100 kg, and if power runs low the robot stays attached to the glass for 30 minutes Ecovacs W2S Omni ↗. The station also has a 1 m backup safety rope and suction cups rated at 800 N or more Ecovacs W2S Omni ↗.
Cleaning options are broad. There are seven modes: Fast, Deep, Thorough, Edge, Spot, Zone and Heavy Duty Ecovacs W2S Omni ↗. WIN-SLAM 4.0 path planning lets it return to its starting point and resume after an interruption Ecovacs W2S Omni ↗.
It sees edges and obstacles well. Ecovacs says it detects obstacles as low as 4 mm and window frames as low as 2 mm, and its edge scrubber reaches within about 1 mm of the frame Ecovacs W2S Omni ↗. A three nozzle spray covers a wide area, with auto and manual spray from the app Ecovacs W2S Omni ↗.
Suction is strong at 3,000 Pa while moving and up to 8,000 Pa peak Ecovacs W2S Omni ↗. Ecovacs says one tank cleans up to about 50 to 55 square meters in fast mode Ecovacs W2S Omni ↗.
Where it falls short
Price is the main problem. Ecovacs lists the W2S Omni at $599.99 Ecovacs W2S Omni ↗, while the W2 Pro Omni, our main pick, is about $499.99 with the same 110 minute battery and similar safety features Ecovacs W2 Pro Omni ↗. For most people the extra $100 is not worth it.
Pads are washed by hand. Unlike the W3 Omni, it does not wash its own pads, so you swap and launder the two microfiber pads yourself Ecovacs W2S Omni ↗ Ecovacs W3 Omni ↗. The water tank is small at 80 ml Ecovacs W2S Omni ↗.
It only handles flat glass. Curved or very small panes are out, and it needs glass at least 3 mm thick Ecovacs W2S Omni ↗. The page also does not state the warranty, and the power adapter and extension cable are listed as not included Ecovacs W2S Omni ↗. Hands on testing is in progress; we will update this review with results.
Pricing and plans
Ecovacs sells the W2S Omni for $599.99 on its US store, or $633 in a bundle with accessories Ecovacs W2S Omni ↗. There is no subscription.
Consumables are cheap. Replacement pads cost $29.99, and the box includes one bottle of cleaning solution and two reusable pads Ecovacs W2S Omni ↗. The page links to returns, warranty and extended warranty pages but does not list warranty terms, so confirm before buying Ecovacs W2S Omni ↗.
Who should (and shouldn't) use it
- Good fit: homes with many flat windows, including frameless glass, where a 110 minute battery saves moving a cord Ecovacs W2S Omni ↗.
- Good fit: buyers who find it on sale at or below the price of the W2 Pro Omni Ecovacs W2S Omni ↗ Ecovacs W2 Pro Omni ↗.
- Skip it if: you want self washing pads; the W3 Omni does that Ecovacs W3 Omni ↗.
- Skip it if: you only clean small windows, mirrors or shower doors; the Winbot Mini costs far less Ecovacs Winbot Mini ↗.
Alternatives worth a look
- Ecovacs Winbot W2 Pro Omni: our main pick, with the same battery life for about $100 less Ecovacs W2 Pro Omni ↗.
- Ecovacs Winbot W3 Omni: our upgrade pick, with self washing pads and up to 130 minutes of runtime Ecovacs W3 Omni ↗.
- Ecovacs Winbot Mini: our budget pick for small windows and mirrors, at about $239.99 Ecovacs Winbot Mini ↗.
- HOBOT SP10 iScraper: a specialist for frameless and outdoor glass with scraper blades HOBOT SP10 ↗.
Where it appears
ComparedThe Best Window Cleaning RobotWhat’s good
- Solid safety features
- Many cleaning modes
- Battery or plugged in
What to know
- Costs more than the W2 Pro Omni
- No self washing pads
Key features
- About 110 minutes per charge
- Three nozzle spray, 80 ml tank
- WIN-SLAM 4.0 with seven modes
- Detects obstacles as low as 4 mm
- 100 kg safety cable plus backup rope
Questions people ask
How long does the Winbot W2S Omni battery last?
Ecovacs rates it at about 110 minutes per charge, and it charges in 3 hours or less. It can also run plugged in Ecovacs W2S Omni ↗.
What is the difference between the Winbot W2S Omni and W2 Pro Omni?
They share the same 110 minute battery and similar safety features. The W2S Omni adds obstacle detection and costs $599.99 versus about $499.99 Ecovacs W2S Omni ↗ Ecovacs W2 Pro Omni ↗.
Does the Winbot W2S Omni work on frameless windows?
Yes. Ecovacs says it works on flat windows with or without frames, with glass at least 3 mm thick Ecovacs W2S Omni ↗.
Is the Winbot W2S Omni worth it?
It is a good robot, but the W2 Pro Omni does nearly the same job for about $100 less Ecovacs W2S Omni ↗ Ecovacs W2 Pro Omni ↗.
Where this comes from
Checked Oct 9, 2026. Vendor pages describe their own products; independent sources add outside views. Hands on testing is in progress.
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