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  3. RCW 2 Extra+ vs RCW 4 Extra+

Kärcher RCW 2 Extra+ vs Kärcher RCW 4 Extra+

What RCW 2 Extra+ does better (0) and where RCW 4 Extra+ wins (1) — every spec side by side.

Kärcher RCW 2 Extra+
Kärcher · 2026RCW 2 Extra+
7.0Score
0 advantages≈ US$200
vs
Kärcher RCW 4 Extra+
Kärcher · 2026RCW 4 Extra+
8.0Score
1 advantage≈ US$220
Higher score
6.5Cleaning power6.5
4.2Mopping8.8
6.6Battery6.6

Why is RCW 2 Extra+ better than RCW 4 Extra+?

RCW 2 Extra+ has no measurable advantages in this pair.

Why is RCW 4 Extra+ better than RCW 2 Extra+?

  1. Water tank (robot)70 ml vs 150 ml2.1×
Specifications

Side by side

Suction & cleaning
Suction power5,000 Pa5,000 Pa
Noise level62 dB62 dB
Mopping
Water tank (robot)70 ml150 ml
Size & weight
Width / diameter292 mm264 mm
Length160 mm256 mm
Weight1.1 kg1.5 kg
ColoursWhite, Black, YellowWhite, 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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