Ecovacs Winbot W2S Pro Omni vs Ecovacs Winbot W3 Omni
Researched by Riley Hart · prices checked Oct 26, 2026
As of Oct 26, 2026, the Ecovacs Winbot W2S Pro Omni costs $600 and the Ecovacs Winbot W3 Omni costs $700, so the Ecovacs Winbot W2S Pro Omni is $100 cheaper. The Ecovacs Winbot W2S Pro Omni scores higher in our ranking (7.0 vs 6.3 out of 10). Pick the Ecovacs Winbot W2S Pro Omni for big windows on a mid range budget. Pick the Ecovacs Winbot W3 Omni for large picture windows and glass walls.
- Suction
- Up to 10,000 Pa
- Spray
- 3 nozzle
- Backup battery
- 110 min cordless
- Frameless
- Yes
The sensible pick for most people who want an Ecovacs station model, since it keeps the battery station and edge scrubbers of the W3 Omni for $200 less. You rinse the pad yourself instead of letting the station do it. Skip it if you hate manual pad care or only have small windows.
Full Ecovacs Winbot W2S Pro Omni review →- Suction
- 3,300 Pa moving
- Spray
- Auto
- Backup battery
- 130 min cordless
- Frameless
- Reported by Gizmodo
The most complete window robot sold in the US right now, because the station washes the pad between panes and the battery frees it from wall outlets. It makes sense for homes with lots of large or hard to reach glass. If you have a few ordinary windows, reviewers agree a squeegee is cheaper and often faster.
Full Ecovacs Winbot W3 Omni review →Side by side
| Ecovacs Winbot W2S Pro Omni | Ecovacs Winbot W3 Omni | |
|---|---|---|
| Price | $600 | $700 |
| 3 year cost | $600 | $700 |
| Our score | 7.0/10 | 6.3/10 |
| Rank in Windows | #6 | #7 |
| Status | on sale | on sale |
| Warranty | n/a | n/a |
| Suction | Up to 10,000 Pa (brand claim) | 3,300 Pa while moving (spec sheet); marketing also cites 10,000 Pa |
| Cleaning speed | About 1 m² in 90 seconds (brand claim) | 16 cm/s; 1 m² in about 1 min 35 s in Fast mode (brand claim) |
| Safety rope | 5.5 m, rated to 1,000 N | Combined power and safety cord rated to 100 kg, plus a 1 m rope on the station |
| Battery backup | Up to 110 min cordless runtime; stays attached over 30 min at low power | Up to 130 min cordless runtime; stays attached over 30 min at low power |
| Spray | Three nozzle wide angle spray, 120 ml tank | Auto and app spray, 80 ml tank, about 50 m² per fill in Fast mode |
| Corners | TruEdge 2.0 with four corner scrubbers | TruEdge spinning edge scrubber, 1.1 mm edge accuracy claimed |
| Frameless glass | Supported, optical sensor detects frameless edges | Edge detection on frameless glass reported by Gizmodo; minimum glass thickness 3 mm |
| Base station | Portable OMNI station with battery, 5 kg counterweight and auto cord take up; no pad washing | 10 kg Vortex Wash station washes and re-wets the pad in about a minute |
| Noise | 66 dB (brand rating) | n/a |
| Battery | 5,200 mAh (AndroidGuys launch report) | n/a |
| Cord length | n/a | 5.5 m (CyberShack) |
| Max window | n/a | 8 m wide by 2.5 m tall per run (CyberShack) |
| Best for | big windows on a mid range budget | large picture windows and glass walls |
| Skip if | you want hands free pad washing | you only have a few small windows |
Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.
What reviewers found
Ecovacs Winbot W2S Pro Omni
- Basic Tutorials (92/100): Navigation needed no intervention and results were nearly streak free; heavy dirt clogged the pad and a second pass helped on soiled glass. Four panes cleaned twice in deep mode took about 10 minutes. Source
Ecovacs Winbot W3 Omni
- Gizmodo (via Gizmodo Japan translation): Cleaned a 4 by 3.5 ft window in about 2 minutes in Fast mode, but left streaks, missed parts of windows with tapered frames and once stopped after cleaning only one corner. Reviewer judged it hard to justify at $700. Source
- CyberShack (4.5/5): Results were better than hand cleaning with precise edge coverage over several weeks; left a faint outline where the pad stops and sometimes reported being stuck. Source
- TechRadar (Netherlands): Station returned a clean, damp pad in about 1 to 1.5 minutes; good on normal dirt and edges, heavy build up still needed manual work. Source
Pros and cons
Ecovacs Winbot W2S Pro Omni
Pros
- Cordless station, no outlet near the window
- Large 120 ml tank
- Four corner scrubbers reach close to frames
- Frameless glass and mirrors supported
Cons
- Pad must be rinsed by hand
- Second pass often needed on dirty glass
- Station suction foot only grips hard, smooth floors
- Too new for many independent tests
Ecovacs Winbot W3 Omni
Pros
- Station washes and re-wets the pad automatically
- Cordless, about 130 minutes per charge
- Strong edge cleaning with spinning TruEdge scrubber
- Three layer safety cord rated to 100 kg
Cons
- Most expensive window robot on the US store
- Reviewers saw streaks and a faint pad outline
- Struggled with tapered frames in Gizmodo testing
- Heavy 10 kg station to carry window to window
Questions buyers ask
Which is better, the Ecovacs Winbot W2S Pro Omni or the Ecovacs Winbot W3 Omni?
The Ecovacs Winbot W2S Pro Omni scores higher in our ranking (7.0 vs 6.3 out of 10). Pick the Ecovacs Winbot W2S Pro Omni for big windows on a mid range budget. Pick the Ecovacs Winbot W3 Omni for large picture windows and glass walls.
Which is cheaper?
The Ecovacs Winbot W2S Pro Omni at $600, versus $700 for the Ecovacs Winbot W3 Omni, checked Oct 26, 2026. Over 3 years with running costs: $600 vs $700.
What is the difference between the Winbot W2S Pro Omni and the Winbot W3 Omni?
Suction: Up to 10,000 Pa (brand claim) on the Winbot W2S Pro Omni, 3,300 Pa while moving (spec sheet); marketing also cites 10,000 Pa on the Winbot W3 Omni. Cleaning speed: About 1 m² in 90 seconds (brand claim) on the Winbot W2S Pro Omni, 16 cm/s; 1 m² in about 1 min 35 s in Fast mode (brand claim) on the Winbot W3 Omni. Safety rope: 5.5 m, rated to 1,000 N on the Winbot W2S Pro Omni, Combined power and safety cord rated to 100 kg, plus a 1 m rope on the station on the Winbot W3 Omni.
Also consider
See all ranked →More comparisons
- Ecovacs Winbot W2 Pro Omni vs Ecovacs Winbot W2S Pro Omni
- Ecovacs Winbot W2S vs Ecovacs Winbot W2S Pro Omni
- Ecovacs Winbot W2S Omni vs Ecovacs Winbot W2S Pro Omni
- Ecovacs Winbot W2S Omni vs Ecovacs Winbot W3 Omni
- Ecovacs Winbot W2 Pro Omni vs Ecovacs Winbot W3 Omni
- Ecovacs Winbot W2S vs Ecovacs Winbot W3 Omni
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