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  3. Winbot W3 Omni vs RCW 4 Extra+

Ecovacs Winbot W3 Omni vs Kärcher RCW 4 Extra+

What Winbot W3 Omni does better (0) and where RCW 4 Extra+ wins (3) — every spec side by side.

Ecovacs Winbot W3 Omni
Ecovacs · 2026Winbot W3 Omni
4.6Score
0 advantages≈ US$470
vs
Kärcher RCW 4 Extra+
Kärcher · 2026RCW 4 Extra+
8.2Score
3 advantages≈ US$280
Higher score
3.5Cleaning power6.6
5.2Mopping8.6
4.1Battery6.6

Why is Winbot W3 Omni better than RCW 4 Extra+?

Winbot W3 Omni has no measurable advantages in this pair.

Why is RCW 4 Extra+ better than Winbot W3 Omni?

  1. Suction power3,300 Pa vs 5,000 Pa+52%
  2. Water tank (robot)80 ml vs 150 ml+88%
  3. Noise level68 dB vs 62 dB+10%
Specifications

Side by side

Suction & cleaning
Suction power3,300 Pa5,000 Pa
Noise level68 dB62 dB
Navigation & obstacles
Navigation sensorsCliff sensors—
Mopping
Water tank (robot)80 ml150 ml
Size & weight
Width / diameter270 mm264 mm
Length270 mm256 mm
Weight2.1 kg1.5 kg
ColoursWhite, Silver, BlackWhite, Black, Yellow
App & smart home
App controlYes—
Remote control—Yes
Window cleaning
Water sprayYesYes
Backup battery (power cut)YesYes
Safety ropeYesYes
Window area per session50 m²—
To compare: 0up to 4 models
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