Ecovacs WINBOT W2S OMNI or Kärcher RCW 2: which should you choose?
Comparison of the two window-cleaning robots using our catalogue's scoring criteria, value by value. Scores are relative to all the models we have analysed.
Ecovacs WINBOT W2S OMNI
Main drawbackIndoor use leaves exterior window chores unresolved
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Kärcher RCW 2
Main drawbackSuction pressure sits among the category's lowest advertised levels
Read the full analysis →Our verdict based on your priority
- Priority: “Suction pressure”Ecovacs WINBOT W2S OMNI 9.3 / 10 vs 8.2
- Priority: “Equipment”Ecovacs WINBOT W2S OMNI 8.9 / 10 vs 8.1
By criterion
| Criterion | Ecovacs WINBOT W2S OMNI | Kärcher RCW 2 |
|---|---|---|
| Suction pressure | 9.3 advantage | 8.2 |
| Water tank capacity | 9.1 | 8.7 |
| Equipment | 8.9 advantage | 8.1 |
A gap of less than half a point does not count as an advantage: our scores are relative to the catalogue, and using them to pick a winner would imply a level of precision we cannot offer.
Side-by-side specs
| Specification | Ecovacs WINBOT W2S OMNI | Kärcher RCW 2 |
|---|---|---|
| Suction pressure | 8000 Pa | 3300 Pa |
| Water tank capacity | 80 ml | 70 ml |
| Robot height | Not provided | 7,1 cm |
| Robot weight | 1,95 kg | 1,1 kg |
| Noise level | Not provided | 62 dB |
| Power supply during cleaning | Powered by the station's battery via a cable | Mains-powered |
| Manufacturer's intended use | Household | Household |
| Indoor / outdoor cleaning | Indoor | Outdoor |
| Window compatibility | Frameless | Framed |
| Spraying | Automatic | Automatic |
| Control | App | Remote control |
| Safety features | Safety rope | UPS backup battery |
| Cleaning modes | Quick | Quick |
Figures published by manufacturers and retailers, compiled in our reviews. “Not provided” means the figure could not be verified.
Which is right for you?
Ecovacs WINBOT W2S OMNI
Leads on 2 criteria of 3 compared
- Suction pressure: 9.3/10 vs 8.2/10 (8000 Pa vs 3300 Pa)
- Equipment: 8.9/10 vs 8.1/10
- Power supply during cleaning: Powered by the station's battery via a cable
Kärcher RCW 2
Leads on 0 criterion of 3 compared
- Power supply during cleaning: Mains-powered
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Comparison based on published specifications and our scores, calculated using the same criteria for every model. Our methodology →
Frequently asked questions
Which is rated higher, Ecovacs WINBOT W2S OMNI or Kärcher RCW 2?
Ecovacs WINBOT W2S OMNI scores 9.1/10, compared with 8.3/10 for Kärcher RCW 2, using the same scoring criteria.
Which wins on “Suction pressure”?
Ecovacs WINBOT W2S OMNI wins on “Suction pressure”: 9.3/10 compared with 8.2/10 for Kärcher RCW 2. Recorded values: 8000 Pa versus 3300 Pa.
Which wins on “Equipment”?
Ecovacs WINBOT W2S OMNI wins on “Equipment”: 8.9/10 compared with 8.1/10 for Kärcher RCW 2.
What's the difference in power supply during cleaning between the two?
Ecovacs WINBOT W2S OMNI: Powered by the station's battery via a cable. Kärcher RCW 2: Mains-powered.