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  3. Windobot S5 Pro vs RCW 4 Extra

EZIclean Windobot S5 Pro vs Kärcher RCW 4 Extra

What Windobot S5 Pro does better (2) and where RCW 4 Extra wins (0) — every spec side by side.

EZIclean Windobot S5 Pro
EZIclean · 2025Windobot S5 Pro
8.2Score
2 advantages≈ US$260
Higher score
vs
Kärcher RCW 4 Extra
Kärcher · 2026RCW 4 Extra
7.4Score
0 advantages≈ US$240
9.7Mopping8.6
6.6Battery6.6

Why is Windobot S5 Pro better than RCW 4 Extra?

  1. Water tank (robot)500 ml vs 150 ml3.3×
  2. Noise level64 dB vs 77 dB+20%

Why is RCW 4 Extra better than Windobot S5 Pro?

RCW 4 Extra has no measurable advantages in this pair.

Specifications

Side by side

Suction & cleaning
Suction power—5,000 Pa
Noise level64 dB77 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
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