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  3. Winbot W2S Pro Omni Care vs RCW 4 Extra+

Ecovacs Winbot W2S Pro Omni Care vs Kärcher RCW 4 Extra+

What Winbot W2S Pro Omni Care does better (1) and where RCW 4 Extra+ wins (2) — every spec side by side.

Ecovacs Winbot W2S Pro Omni Care
8.8Score
1 advantage≈ US$700
Higher score
vs
Kärcher RCW 4 Extra+
Kärcher · 2026RCW 4 Extra+
8.1Score
2 advantages≈ US$280
9.4Cleaning power6.5
7.9Mopping8.8
3.7Battery6.7

Why is Winbot W2S Pro Omni Care better than RCW 4 Extra+?

  1. Suction power10,000 Pa vs 5,000 Pa2×

Why is RCW 4 Extra+ better than Winbot W2S Pro Omni Care?

  1. Water tank (robot)120 ml vs 150 ml+25%
  2. Noise level66 dB vs 62 dB+6%
Specifications

Side by side

Suction & cleaning
Suction power10,000 Pa5,000 Pa
Noise level66 dB62 dB
Navigation & obstacles
Navigation sensorsCliff sensors—
Mopping
Water tank (robot)120 ml150 ml
Battery & runtime
Runtime110 min—
Charging time180 min—
Size & weight
Width / diameter272 mm264 mm
Length272 mm256 mm
Weight2.1 kg1.5 kg
ColoursWhiteWhite, Black, Yellow
App & smart home
App controlYes—
Remote control—Yes
Window cleaning
Water sprayYesYes
Backup battery (power cut)YesYes
Safety ropeYesYes
Window area per session75 m²—
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