Ecovacs WINBOT W2S OMNI or Sichler Haushaltsgeräte PR-330 (ZX7733): 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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Sichler Haushaltsgeräte PR-330 (ZX7733)
Main drawbackTypical water capacity limits long sessions across large panels
Read the full analysis →Our verdict based on your priority
- Priority: “Suction pressure”Ecovacs WINBOT W2S OMNI 9.3 / 10 vs 7.1
- Priority: “Water tank capacity”Ecovacs WINBOT W2S OMNI 9.1 / 10 vs 6.9
By criterion
| Criterion | Ecovacs WINBOT W2S OMNI | Sichler Haushaltsgeräte PR-330 (ZX7733) |
|---|---|---|
| Suction pressure | 9.3 advantage | 7.1 |
| Water tank capacity | 9.1 advantage | 6.9 |
| Equipment | 8.9 | 8.9 |
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 | Sichler Haushaltsgeräte PR-330 (ZX7733) |
|---|---|---|
| Suction pressure | 8000 Pa | 2800 Pa |
| Electrical power | Not provided | 72 W |
| Water tank capacity | 80 ml | 50 ml |
| Backup battery holding time | Not provided | 25 min |
| Robot weight | 1,95 kg | 1,7 kg |
| Noise level | Not provided | 63 dB |
| Power supply during cleaning | Powered by the station's battery via a cable | Mains-powered |
| Manufacturer's intended use | Household | Household |
| Compatible surfaces | Mirrors | Tiles |
| Indoor / outdoor cleaning | Indoor | Outdoor |
| Window compatibility | Frameless | Frameless |
| Spraying | Automatic | Automatic |
| Control | App | Remote control |
| Safety features | Safety rope | UPS backup battery |
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 7.1/10 (8000 Pa vs 2800 Pa)
- Water tank capacity: 9.1/10 vs 6.9/10 (80 ml vs 50 ml)
- Power supply during cleaning: Powered by the station's battery via a cable
Sichler Haushaltsgeräte PR-330 (ZX7733)
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 Sichler Haushaltsgeräte PR-330 (ZX7733)?
Ecovacs WINBOT W2S OMNI scores 9.1/10, compared with 7.9/10 for Sichler Haushaltsgeräte PR-330 (ZX7733), using the same scoring criteria.
Which wins on “Suction pressure”?
Ecovacs WINBOT W2S OMNI wins on “Suction pressure”: 9.3/10 compared with 7.1/10 for Sichler Haushaltsgeräte PR-330 (ZX7733). Recorded values: 8000 Pa versus 2800 Pa.
Which wins on “Water tank capacity”?
Ecovacs WINBOT W2S OMNI wins on “Water tank capacity”: 9.1/10 compared with 6.9/10 for Sichler Haushaltsgeräte PR-330 (ZX7733). Recorded values: 80 ml versus 50 ml.
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. Sichler Haushaltsgeräte PR-330 (ZX7733): Mains-powered.