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  3. Windobot S5 Pro vs RCW 4

EZIclean Windobot S5 Pro vs Kärcher RCW 4

What Windobot S5 Pro does better (1) and where RCW 4 wins (1) — every spec side by side.

EZIclean Windobot S5 Pro
EZIclean · 2025Windobot S5 Pro
8.2Score
1 advantage≈ US$260
vs
Kärcher RCW 4
Kärcher · 2026RCW 4
8.2Score
1 advantage≈ US$250
9.7Mopping8.6
6.6Battery6.6

Why is Windobot S5 Pro better than RCW 4?

  1. Water tank (robot)500 ml vs 150 ml3.3×

Why is RCW 4 better than Windobot S5 Pro?

  1. Noise level64 dB vs 62 dB+3%
Specifications

Side by side

Kärcher RCW 4Kärcher RCW 4≈ US$2508.2
Suction & cleaning
Suction power—5,000 Pa
Noise level64 dB62 dB
Mopping
Water tank (robot)500 ml150 ml
Size & weight
Width / diameter240 mm264 mm
Length240 mm256 mm
Weight1.3 kg1.5 kg
ColoursWhiteWhite, Black, Yellow
App & smart home
App controlYes—
Remote controlYesYes
Window cleaning
Water sprayYesYes
Backup battery (power cut)YesYes
Safety ropeYesYes
To compare: 0up to 4 models
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