Ecovacs WINBOT W2S OMNI
Top-ranked for suction pressure and water tank capacity.
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Best window cleaning robot for frameless windows 2026, top picks and comparison
Compare documented models using the available specifications. Use the filters to narrow this selection to your needs and budget.
Answer a few questions in 10 seconds4 questions about the 5 models in this selection
Prices collected from retailers are for guidance only: they may have changed since, the current price is the one shown by the retailer. No price is shown for models sold only on Amazon. Amounts converted from reference prices in euros using a dated exchange rate.
Our rankings frameless windows
Updated on October 7, 2026
Sichler Haushaltsgeräte PR-330 (ZX7733)
Top-ranked for backup battery holding time.
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Eziclean Windobot S5 Pro
Key strength: suction pressure, rated 8.4/10.
Read the review| Rankings | Rating | Price | Suction pressure | Electrical power | Water tank capacity | Battery-powered cleaning runtime | Backup battery holding time | Robot height | Robot weight | Noise level | Operating radius |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. Ecovacs WINBOT W2S OMNI | 9.1/10 | $485 | 8000 Pa | n/a | 80 ml | n/a | n/a | n/a | 1.95 kg | n/a | n/a |
| 2. Sichler Haushaltsgeräte PR-330 (ZX7733) | 7.9/10 | $259 | 2800 Pa | 72 W | 50 ml | n/a | 25 min | n/a | 1.7 kg | 63 dB | n/a |
| 3. Eziclean Windobot S5 Pro | 7.5/10 | $193 | 3500 Pa | 72 W | 50 ml | n/a | n/a | n/a | 1.35 kg | 58 dB | n/a |
| 4. Liectroux X6 | 7.3/10 | n/a | 2800 Pa | 65 W | n/a | n/a | 20 min | 10 cm | 1.2 kg | n/a | n/a |
Rankings are based on our review ratings, calculated by comparing manufacturer specifications across the full catalogue.Our methodology.
How we picked these models
- 5 models selected because they have the feature “Frameless windows” according to data published by manufacturers and retailers.
- See how we rate →
- No brand pays to be included in this selection or to rank higher.
This selection by the numbers
This selection includes 5 analysed window-cleaning robots. Their average score is 8/10. Highest rated: Ecovacs WINBOT W2S OMNI, with 9.1/10.
Most common brands: Ecovacs (1), Clariva (1), Sichler Haushaltsgeräte (1).