Ecovacs Winbot W2S vs Ecovacs Winbot W3 Omni

Researched by Riley Hart · prices checked Oct 26, 2026

Short answer · checked Oct 26, 2026

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.

Windows

EcovacsWinbot W2S

Suction: 8,000 Pa
Spray: Three nozzle spray
Backup battery: 3,000 mAh battery
Frameless: Supported

7.4/10Price tracked daily

$299Check price at Ecovacs US store →

The cheapest way into the W2S line, with the same suction claim and edge scrubber as the Omni. KultureGeek found it cleaned indoor glass well in one pass but noted you manage the cord yourself. Check what is in the box before buying, since Ecovacs US does not list the contents.

Full Ecovacs Winbot W2S review →

Windows

EcovacsWinbot W3 Omni

Suction: 3,300 Pa moving
Spray: Auto
Backup battery: 130 min cordless
Frameless: Reported by Gizmodo

6.3/10Price tracked daily

$700Check price at Amazon →

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	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

Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.

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

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

Pros

Half the price of the W2S Omni
8,000 Pa suction claim
TruEdge edge scrubber
Frameless glass supported

Cons

Box contents not listed on the US page
Cord management is on you
Struggles with caked on grime per KultureGeek

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 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.

Also consider

See all ranked →

Windows · Hobot 298 $1999.0/10 Windows · Mova N1 $1798.5/10 Windows · Ecovacs Winbot W2 Pro Omni $3998.2/10 Windows · Hobot 2S $2997.7/10

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