# Ecovacs Winbot W2S vs Ecovacs Winbot W3 Omni

As of Oct 26, 2026, the Ecovacs Winbot W2S costs $299 and the Ecovacs Winbot W3 Omni costs $700, so the Ecovacs Winbot W2S is $401 cheaper. The Ecovacs Winbot W2S scores higher in our ranking (7.4 vs 6.3 out of 10). Pick the Ecovacs Winbot W2S for indoor windows near an outlet. Pick the Ecovacs Winbot W3 Omni for large picture windows and glass walls.

Prices checked Oct 26, 2026. HTML version: https://robotsforthat.com/vs/ecovacs-winbot-w2s-vs-ecovacs-winbot-w3-omni/

## Side by side

| | Ecovacs Winbot W2S | Ecovacs Winbot W3 Omni |
|---|---|---|
| Price | $299 | $700 |
| 3 year cost | $299 | $700 |
| Our score | 7.4/10 | 6.3/10 |
| Rank in Windows | #5 | #7 |
| Status | on sale | on sale |
| Warranty | n/a | n/a |
| Suction | 8,000 Pa (brand claim) | 3,300 Pa while moving (spec sheet); marketing also cites 10,000 Pa |
| Cleaning speed | 1 sq m in about 1 min 45 s in Fast Mode (brand claim) | 16 cm/s; 1 m² in about 1 min 35 s in Fast mode (brand claim) |
| Safety rope | Not stated on the Ecovacs US page | Combined power and safety cord rated to 100 kg, plus a 1 m rope on the station |
| Battery backup | 3,000 mAh battery; stays attached over 30 min at low power (brand claim) | Up to 130 min cordless runtime; stays attached over 30 min at low power |
| Spray | Three nozzle spray; Ecovacs lists an 80 ml tank | Auto and app spray, 80 ml tank, about 50 m² per fill in Fast mode |
| Corners | TruEdge scrubber, reaches within 0.04 in of corners (brand claim) | TruEdge spinning edge scrubber, 1.1 mm edge accuracy claimed |
| Frameless glass | Supported, framed and frameless flat windows | Edge detection on frameless glass reported by Gizmodo; minimum glass thickness 3 mm |
| Base station | The US page mentions a dock and a Wired Mode, but gives no box contents list; the EU W2S tested by KultureGeek came without a station | 10 kg Vortex Wash station washes and re-wets the pad in about a minute |
| Noise | 68 dB (brand rating) | 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 | indoor windows near an outlet | large picture windows and glass walls |
| Skip if | you want a cordless station | you only have a few small windows |

## What reviewers found

### Ecovacs Winbot W2S

- KultureGeek (8/10): Tested the version without station: indoor windows came out very clean in one pass, about 2 to 3 min per window, about 65 dB(A) at 1 m; heavy grime needed scraping first. [Source](https://kulturegeek.fr/news-341801/test-ecovacs-winbot-w2s-station-robot-lave‑vitres-compact-lentretien-regulier)

### 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](https://www.gizmodo.jp/2026/04/ecovacs-winbot-w3-omni-review-window-cleaning-robots-have-a-long-way-to-go.html)
- 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](https://cybershack.com.au/cleaning/ecovacs-winbot-w3-omni-review/)
- 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](https://global.techradar.com/nl-nl/home/robot-vacuums/ecovacs-winbot-w3-omni-review-nl)

## Questions buyers ask

### Which is better, the Ecovacs Winbot W2S or the Ecovacs Winbot W3 Omni?

The Ecovacs Winbot W2S scores higher in our ranking (7.4 vs 6.3 out of 10). Pick the Ecovacs Winbot W2S for indoor windows near an outlet. Pick the Ecovacs Winbot W3 Omni for large picture windows and glass walls.

### Which is cheaper?

The Ecovacs Winbot W2S at $299, versus $700 for the Ecovacs Winbot W3 Omni, checked Oct 26, 2026. Over 3 years with running costs: $299 vs $700.

### What is the difference between the Winbot W2S and the Winbot W3 Omni?

Suction: 8,000 Pa (brand claim) on the Winbot W2S, 3,300 Pa while moving (spec sheet); marketing also cites 10,000 Pa on the Winbot W3 Omni. Cleaning speed: 1 sq m in about 1 min 45 s in Fast Mode (brand claim) on the Winbot W2S, 16 cm/s; 1 m² in about 1 min 35 s in Fast mode (brand claim) on the Winbot W3 Omni. Safety rope: Not stated on the Ecovacs US page on the Winbot W2S, Combined power and safety cord rated to 100 kg, plus a 1 m rope on the station on the Winbot W3 Omni.

Full reviews: [Ecovacs Winbot W2S](https://robotsforthat.com/robot/ecovacs-winbot-w2s/index.md), [Ecovacs Winbot W3 Omni](https://robotsforthat.com/robot/ecovacs-winbot-w3-omni/index.md)