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  3. S7 Plus vs RCW 4 Extra+

Hutt S7 Plus vs Kärcher RCW 4 Extra+

What S7 Plus does better (1) and where RCW 4 Extra+ wins (2) — every spec side by side.

Hutt S7 Plus
Hutt · 2025S7 Plus
6.6Score
1 advantage≈ US$410
vs
Kärcher RCW 4 Extra+
Kärcher · 2026RCW 4 Extra+
8.1Score
2 advantages≈ US$280
Higher score
6.0Cleaning power6.5
5.3Mopping8.8
6.7Battery6.7

Why is S7 Plus better than RCW 4 Extra+?

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

Why is RCW 4 Extra+ better than S7 Plus?

  1. Water tank (robot)80 ml vs 150 ml+88%
  2. Noise level73 dB vs 62 dB+18%
Specifications

Side by side

Hutt S7 PlusHutt S7 Plus≈ US$4106.6
Suction & cleaning
Suction power5,500 Pa5,000 Pa
Noise level73 dB62 dB
Mopping
Water tank (robot)80 ml150 ml
Size & weight
Width / diameter145 mm264 mm
Length295 mm256 mm
Weight—1.5 kg
ColoursWhiteWhite, Black, Yellow
App & smart home
Remote controlYesYes
Window cleaning
Water sprayYesYes
Backup battery (power cut)YesYes
Safety ropeYesYes
To compare: 0up to 4 models
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