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  3. RCW 4 Extra+ vs Probot RX11 Pro

Kärcher RCW 4 Extra+ vs Welltec Probot RX11 Pro

What RCW 4 Extra+ does better (2) and where Probot RX11 Pro wins (0) — every spec side by side.

Kärcher RCW 4 Extra+
Kärcher · 2026RCW 4 Extra+
8.0Score
2 advantages≈ US$220
Higher score
vs
Welltec Probot RX11 Pro
Welltec · 2025Probot RX11 Pro
5.9Score
0 advantages≈ US$280
6.5Cleaning power5.0
8.8Mopping7.0
6.6Battery4.0

Why is RCW 4 Extra+ better than Probot RX11 Pro?

  1. Suction power5,000 Pa vs 4,000 Pa+25%
  2. Water tank (robot)150 ml vs 100 ml+50%

Why is Probot RX11 Pro better than RCW 4 Extra+?

Probot RX11 Pro has no measurable advantages in this pair.

Specifications

Side by side

Suction & cleaning
Suction power5,000 Pa4,000 Pa
Noise level62 dB—
Navigation & obstacles
Navigation sensors—Gyroscope
Mopping
Water tank (robot)150 ml100 ml
Size & weight
Width / diameter264 mm150 mm
Length256 mm296 mm
Weight1.5 kg1 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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