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Sichler
Profi-Fensterputzroboter PR-041 V3
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Best Robot Window Cleaners · head-to-head
Profi-Fensterputzroboter PR-041 V3 vs W66
A sourced, side-by-side comparison. Profi-Fensterputzroboter PR-041 V3 is cheaper at —. Every spec and price links to its source.
HUTT
W66
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Which is better: the Profi-Fensterputzroboter PR-041 V3 or W66?
The Profi-Fensterputzroboter PR-041 V3 wins 1 of the 1 specs we compare head to head; the other wins 0.
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Full spec sheet
✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | Profi-Fensterputzroboter PR-041 V3 | W66 |
|---|---|---|
| US price | — | — |
| Brand | Sichler | HUTT |
| Released | — | — |
| Suction power (Pa) | — | 2600 |
| Cleaning speed mode | 0.41 m^2/minute (12 cm/s movement speed) | ~2.5 min/m^2; intelligent suction algorithm adjusts to dirt level |
| Battery backup min | 20 | 30 |
| Spray system | Ultrasonic spray function (per product name/listing; hardware is HOBOT-derived) | 150ml intelligent water tank, wipes 70-90 sq m of glass per fill |
| Path planning | AI path calculation using laser and pressure sensors, adapts to surface unevenness | Laser module measures range for accurate window-frame edge detection |
| Noise level (dB) | 64 | 65 |
| Safety tether | 4.5m safety rope rated to 150kg | 5m safety cable (load rating not published) |
| Edge detection | Laser sensor obstacle/edge detection + anti-fall algorithm | Laser-based frame/edge ranging, more precise than prior HUTT models per manufacturer |
| Weight (lb) | 2.65 | 3.46 |
Sources — Profi-Fensterputzroboter PR-041 V3: pearl.de (verified 2026-08-01). W66: hutt.bg (verified 2026-08-01).
What's the difference between the Profi-Fensterputzroboter PR-041 V3 and W66?
Where the two actually differ on the specs we track (8 of 9). Matching specs are omitted.
- Cleaning speed mode: Profi-Fensterputzroboter PR-041 V3 0.41 m^2/minute (12 cm/s movement speed) vs W66 ~2.5 min/m^2; intelligent suction algorithm adjusts to dirt level
- Battery backup min: Profi-Fensterputzroboter PR-041 V3 20 vs W66 30
- Spray system: Profi-Fensterputzroboter PR-041 V3 Ultrasonic spray function (per product name/listing; hardware is HOBOT-derived) vs W66 150ml intelligent water tank, wipes 70-90 sq m of glass per fill
- Path planning: Profi-Fensterputzroboter PR-041 V3 AI path calculation using laser and pressure sensors, adapts to surface unevenness vs W66 Laser module measures range for accurate window-frame edge detection
- Noise level (dB): Profi-Fensterputzroboter PR-041 V3 64 vs W66 65
- Safety tether: Profi-Fensterputzroboter PR-041 V3 4.5m safety rope rated to 150kg vs W66 5m safety cable (load rating not published)
- Edge detection: Profi-Fensterputzroboter PR-041 V3 Laser sensor obstacle/edge detection + anti-fall algorithm vs W66 Laser-based frame/edge ranging, more precise than prior HUTT models per manufacturer
- Weight (lb): Profi-Fensterputzroboter PR-041 V3 2.65 vs W66 3.46