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Ecovacs Winbot W2S Pro vs. Ecovacs Winbot W3 Omni compared

Window Cleaning Robot

At a glance

The key numbers for both devices side by side.

Overall rating
84Gut
83Gut
Value for money
65Fair
65Fair
Best price
€449.00
€439.00€699.00−37 %
Price advantage
—
€10.00 cheaper
Offers
1 shop
1 shop
Rank in category
Rank 4 of 24
Rank 8 of 24

Rating

Sub-ratings compared

Ecovacs Winbot W2S ProOverall rating 84Ecovacs Winbot W3 OmniOverall rating 83
CleaningresultsNavigation& safetySpeedEaseof use & handlingNoise& build quality
Ecovacs Winbot W2S ProEcovacs Winbot W3 Omni
Cleaning results85/10089/100
Navigation & safety93/10093/100
Speed83/10068/100
Ease of use & handling71/10077/100
Noise & build quality83/10079/100
Cleaning results
85
89
Navigation & safety
93
93
Speed
83
68
Ease of use & handling
71
77
Noise & build quality
83
79

Specs

Specs compared

Key specs

Brand
Ecovacs
Ecovacs
Model
Winbot W2S Pro
Winbot W3 Omni
Adhesion systemTechnology that keeps the robot attached to the glass.
Vacuum
Vacuum
Form factorBasic shape of the housing; square shapes reach further into the corners.
Square
Suction powerNegative pressure of the vacuum pump according to the manufacturer; it keeps the robot on the glass.
10,000 Pa
3,300 Pa
Cleaning speedMinutes per square meter according to the manufacturer – lower means faster
1.5 min/m²
1.58 min/m²
Automatic sprayingSprays cleaning solution onto the glass by itself; otherwise the pads are moistened by hand.
Yes
Yes
Frameless glassDetects frameless edges according to the manufacturer and does not drive past them – for glass shower enclosures, glass railings and frameless windows
Yes
Yes
Fall protectionOnly check the safety features the manufacturer lists for this model.
Backup batterySafety rope
Backup batterySafety ropeAdhesion sensorAdhesion loss alarm

Cleaning

Edge cleaningSpecifically follows the edges instead of just wiping the surface.
Yes
Yes
Noise levelSound pressure level in standard mode according to the manufacturer, not the highest setting.
66 dB
68 dB
Suitable forSurfaces the manufacturer approves the robot for.
Framed glassFrameless glassMirror
Framed glassFrameless glassMirror
Number of cleaning padsNumber of pads attached to the robot at the same time.
1 pcs
1 pcs
Pad typeMaterial of the included cleaning pads.
Microfiber, washable
Microfiber
Cleaning solution tankTank capacity; the field stays empty for models without automatic spraying.
120 ml (4.1 fl oz)
80 ml (2.7 fl oz)
Number of spray nozzlesNumber of nozzles that spray cleaning solution onto the glass.
6 pcs
6 pcs
Cleaning programsOnly check the programs the manufacturer lists for this model.
Edge programSpot cleaning
Edge programSpot cleaning

Adhesion, safety & power

Backup runtimeHow long the robot stays attached during a power outage, according to the manufacturer.
30 min
30 min
Cable lengthLength of the power cord according to the manufacturer.
6.8 m (22 ft)
5.5 m (18 ft)
Battery-poweredAccording to the manufacturer, the robot cleans on battery power, without a power cord at the window
No
Yes
Safety rope lengthLength of the included safety rope.
5.5 m (18 ft)
1 m (3.3 ft)

Navigation & app

NavigationMovement pattern when covering the glass, according to the manufacturer.
Calculated path
Calculated path
Frame detectionDetects the window frame and drives right up to the edge.
Yes
Yes
Obstacle detectionDetects muntins or objects stuck on the glass.
Yes
Yes
Return to starting pointAutomatically returns to the starting point after cleaning.
Yes
Yes
Remote controlA remote control is included.
No
No
App controlCan be controlled via the manufacturer app, not just the remote control.
Yes
Yes

Dimensions & weight

HeightHeight of the housing; it determines whether the robot fits under window handles.
7.6 cm (3 in)
7.6 cm (3 in)
DimensionsWidth × depth × height in cm according to the manufacturer.
27.2 × 27.2 × 7.6 cm (11 × 11 × 3 in)
27 × 27 × 7.6 cm (11 × 11 × 3 in)
WeightWeight of the robot without accessories.
2.1 kg (4.6 lb)
2.1 kg (4.6 lb)

General

Warranty
2 years
Price segment
Mid-range
Premium
Model year
2026
2026
In the box
Roboter, Netzteil, Sicherungsseil, 2 Reinigungstücher, Reinigungslösung (230 ml), Benutzerhandbuch
WINBOT W3 OMNI, Basisstation, Netzkabel, Verbindungs-/Sicherungskabel, 2 Wischpads, 230 ml Reinigungslösung, Anleitung

Prices

Offers

Ecovacs Winbot W2S Pro

Ecovacs Winbot W3 Omni

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Verdict

Pros & cons

Der Ecovacs Winbot W2S Pro putzt große, glatte Scheiben gründlich und nahezu streifenfrei und fährt an geraden Rahmen bis auf rund 2 mm heran. Ein Notstrom-Akku und das innen eingehakte Seil sichern ihn zuverlässig. Der Haken: Er läuft nur am 6,8 m langen Kabel, du brauchst also eine Steckdose nah am Fenster. Bei monatealtem Schmutz musst du das Pad mehrmals auswaschen.

Pros

  • Große Scheiben nach einem Durchgang nahezu streifenfrei
  • Lässt an geraden Rahmen nur rund 2 mm ungeputzt
  • Notstrom-Akku hält ihn bei Stromausfall 30 min an der Scheibe
  • Sicherungsseil mit Karabiner innen, kein Saugnapf auf dem Glas
  • Sechs Sprühdüsen, sprühen in beide Fahrtrichtungen gleichmäßig
  • Auch für rahmenlose Duschwände und Spiegel freigegeben

Cons

  • Kein Akkubetrieb, braucht Steckdose in Fensternähe
  • Altschmutz braucht zweiten Durchgang und ausgewaschenes Pad
  • In rechtwinkligen Ecken bleibt knapp 1 cm ungeputzt
  • Im flachen Gegenlicht feine Spuren sichtbar
  • Programmwechsel nur per App, keine Fernbedienung

Der Ecovacs Winbot W3 Omni putzt große Scheiben gründlich bis 0,4 cm an den Rahmen und wäscht sein Pad in der Station in 1 min. Der Akku im Koffer macht dich unabhängig von Steckdosen, dafür trägst du rund 12 kg von Fenster zu Fenster. Der Haken: Defekte und zähe Reparaturen treten auffällig oft auf.

Pros

  • Putzt bis 0,4 cm an den Rahmen, in Ecken bis 0,7 cm
  • Station wäscht das Pad in 1 min und befeuchtet es vor
  • Akku in der Station reicht zwei bis dreieinhalb Stunden ohne Steckdose
  • Drei Absturzsicherungen: Verbundkabel bis 100 kg, Seil mit Karabiner, 30 min Haftreserve
  • Haftsensor mit Lichtsignal und Alarm an der Station
  • Für rahmenlose Duschwände und Glasgeländer freigegeben

Cons

  • Etwa jeder fünfte Shop-Bericht schildert Defekte, teils schon bei Lieferung
  • Reparaturen dauern rund vier Wochen, Geräte kamen teils ungerepariert zurück
  • Station wiegt 10 bis 11 kg, mit vollen Tanks 1,5 kg mehr
  • Pad fest mit Kunststoffrahmen verklebt, Tausch nur komplett
  • Altschmutz außen braucht zwei Durchgänge, Vogelkot und Insektenreste bleiben

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