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  3. Winbot W2 Pro vs RCW 4

Ecovacs Winbot W2 Pro vs Kärcher RCW 4

What Winbot W2 Pro does better (1) and where RCW 4 wins (1) — every spec side by side.

Ecovacs Winbot W2 Pro
Ecovacs · 2025Winbot W2 Pro
6.1Score
1 advantage≈ US$300
vs
Kärcher RCW 4
Kärcher · 2026RCW 4
8.0Score
1 advantage≈ US$230
Higher score
7.4Cleaning power6.5
3.2Mopping8.8
2.8Battery6.6

Why is Winbot W2 Pro better than RCW 4?

  1. Suction power5,500 Pa vs 5,000 Pa+10%

Why is RCW 4 better than Winbot W2 Pro?

  1. Water tank (robot)60 ml vs 150 ml2.5×
Specifications

Side by side

Kärcher RCW 4Kärcher RCW 4≈ US$2308.0
Suction & cleaning
Suction power5,500 Pa5,000 Pa
Noise level63 dB62 dB
Navigation & obstacles
Navigation sensorsCliff sensors—
Mopping
Water tank (robot)60 ml150 ml
Battery & runtime
Runtime110 min—
Charging time180 min—
Size & weight
Width / diameter271 mm264 mm
Length271 mm256 mm
Weight1.8 kg1.5 kg
ColoursWhite, GreyWhite, Black, Yellow
App & smart home
App controlYes—
Remote control—Yes
Window cleaning
Water sprayYesYes
Backup battery (power cut)YesYes
Safety ropeYesYes
Window area per session40 m²—
To compare: 0up to 4 models
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