Sichler Haushaltsgeräte PR-330 (ZX7733) or Lubluelu CHYW201: 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.

Sichler Haushaltsgeräte PR-330 (ZX7733)
Main drawbackTypical water capacity limits long sessions across large panels
Read the full analysis →
Lubluelu CHYW201
Main drawbackMains power makes cord routing part of every setup
Check price on Amazon → Read the full analysis →Our verdict based on your priority
- Priority: “Suction pressure”Lubluelu CHYW201 8.6 / 10 vs 7.1
- Priority: “Water tank capacity”Lubluelu CHYW201 9.5 / 10 vs 6.9
- Priority: “Backup battery holding time”Lubluelu CHYW201 9 / 10 vs 8.5
By criterion
| Criterion | Sichler Haushaltsgeräte PR-330 (ZX7733) | Lubluelu CHYW201 |
|---|---|---|
| Suction pressure | 7.1 | 8.6 advantage |
| Water tank capacity | 6.9 | 9.5 advantage |
| Backup battery holding time | 8.5 | 9 advantage |
| 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 | Sichler Haushaltsgeräte PR-330 (ZX7733) | Lubluelu CHYW201 |
|---|---|---|
| Suction pressure | 2800 Pa | 6500 Pa |
| Electrical power | 72 W | Not provided |
| Water tank capacity | 50 ml | 160 ml |
| Backup battery holding time | 25 min | 30 min |
| Robot weight | 1,7 kg | Not provided |
| Noise level | 63 dB | Not provided |
| Power supply during cleaning | Mains-powered | Mains-powered |
| Manufacturer's intended use | Household | Household |
| Compatible surfaces | Tiles | Mirrors |
| Indoor / outdoor cleaning | Outdoor | Outdoor |
| Window compatibility | Frameless | Framed |
| Spraying | Automatic | Dual spray |
| Control | Remote control | Remote control |
| Safety features | UPS backup battery | 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?
Sichler Haushaltsgeräte PR-330 (ZX7733)
Leads on 0 criterion of 4 compared
- No numerical specification sets it apart in this comparison.
Lubluelu CHYW201
Leads on 3 criteria of 4 compared
- Water tank capacity: 9.5/10 vs 6.9/10 (160 ml vs 50 ml)
- Suction pressure: 8.6/10 vs 7.1/10 (6500 Pa vs 2800 Pa)
- Backup battery holding time: 9/10 vs 8.5/10 (30 min vs 25 min)
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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, Sichler Haushaltsgeräte PR-330 (ZX7733) or Lubluelu CHYW201?
Lubluelu CHYW201 scores 9/10, compared with 7.9/10 for Sichler Haushaltsgeräte PR-330 (ZX7733), using the same scoring criteria.
Which wins on “Water tank capacity”?
Lubluelu CHYW201 wins on “Water tank capacity”: 9.5/10 compared with 6.9/10 for Sichler Haushaltsgeräte PR-330 (ZX7733). Recorded values: 160 ml versus 50 ml.
Which wins on “Suction pressure”?
Lubluelu CHYW201 wins on “Suction pressure”: 8.6/10 compared with 7.1/10 for Sichler Haushaltsgeräte PR-330 (ZX7733). Recorded values: 6500 Pa versus 2800 Pa.
Which wins on “Backup battery holding time”?
Lubluelu CHYW201 wins on “Backup battery holding time”: 9/10 compared with 8.5/10 for Sichler Haushaltsgeräte PR-330 (ZX7733). Recorded values: 30 min versus 25 min.
