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  3. RCW 4 vs RoboClean

Kärcher RCW 4 vs Osmo RoboClean

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

Kärcher RCW 4
Kärcher · 2026RCW 4
8.0Score
2 advantages≈ US$230
Higher score
vs
Osmo RoboClean
Osmo · 2026RoboClean
3.8Score
0 advantages≈ US$160
6.5Cleaning power2.8
8.8Mopping5.4

Why is RCW 4 better than RoboClean?

  1. Suction power5,000 Pa vs 3,200 Pa+56%
  2. Water tank (robot)150 ml vs 80 ml+88%

Why is RoboClean better than RCW 4?

RoboClean has no measurable advantages in this pair.

Specifications

Side by side

Kärcher RCW 4Kärcher RCW 4≈ US$2308.0
Osmo RoboCleanOsmo RoboClean≈ US$1603.8
Suction & cleaning
Suction power5,000 Pa3,200 Pa
Noise level62 dB—
Mopping
Water tank (robot)150 ml80 ml
Size & weight
Width / diameter264 mm—
Length256 mm—
Weight1.5 kg—
ColoursWhite, Black, YellowWhite
App & smart home
Remote controlYesYes
Window cleaning
Water sprayYesYes
Backup battery (power cut)Yes—
Safety ropeYesYes
To compare: 0up to 4 models
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