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  3. RCW 4 Extra vs PR-330

Kärcher RCW 4 Extra vs Sichler PR-330

What RCW 4 Extra does better (2) and where PR-330 wins (1) — every spec side by side.

Kärcher RCW 4 Extra
Kärcher · 2026RCW 4 Extra
7.5Score
2 advantages≈ US$240
Higher score
vs
Sichler PR-330
Sichler · 2025PR-330
4.2Score
1 advantage≈ US$230
5.5Cleaning power3.2
8.8Mopping2.4
6.6Battery4.0

Why is RCW 4 Extra better than PR-330?

  1. Suction power5,000 Pa vs 2,800 Pa+79%
  2. Water tank (robot)150 ml vs 50 ml3×

Why is PR-330 better than RCW 4 Extra?

  1. Noise level77 dB vs 63 dB+22%
Specifications

Side by side

Sichler PR-330Sichler PR-330≈ US$2304.2
Suction & cleaning
Suction power5,000 Pa2,800 Pa
Noise level77 dB63 dB
Mopping
Water tank (robot)150 ml50 ml
Size & weight
Width / diameter264 mm240 mm
Length256 mm223 mm
Weight1.5 kg1.7 kg
ColoursWhite, Black, YellowWhite
App & smart home
App control—Yes
Remote controlYesYes
Window cleaning
Water sprayYesYes
Backup battery (power cut)YesYes
Safety ropeYesYes
Window area per session—50 m²
To compare: 0up to 4 models
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