HOBOT
HOBOT-2S
$299
Released 2021
Best Robot Window Cleaners · head-to-head
HOBOT-2S vs Profi-Fensterputzroboter PR-041 V3
A sourced, side-by-side comparison. HOBOT-2S is cheaper at $299. Every spec and price links to its source.
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Sichler
Profi-Fensterputzroboter PR-041 V3
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Which is better: the HOBOT-2S or Profi-Fensterputzroboter PR-041 V3?
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 | HOBOT-2S | Profi-Fensterputzroboter PR-041 V3 |
|---|---|---|
| US price | $299 | — |
| Brand | HOBOT | Sichler |
| Released | 2021 | — |
| Suction power (Pa) | — | — |
| Cleaning speed mode | ~2.4 min/m^2, 12 cm/s movement speed | 0.41 m^2/minute (12 cm/s movement speed) |
| Battery backup min | 20 | 20 |
| Spray system | Dual patented ultrasonic nozzles, 108kHz, 15um mist; 2x26ml replaceable water tanks | Ultrasonic spray function (per product name/listing; hardware is HOBOT-derived) |
| Path planning | AI smart route planning (zigzag: horizontal pass then vertical) | AI path calculation using laser and pressure sensors, adapts to surface unevenness |
| Noise level (dB) | 64 | 64 |
| Safety tether | 4.5m rope rated to 200kg (per hobot.com.tw); some third-party specs list 150kgf | 4.5m safety rope rated to 150kg |
| Edge detection | Edge-leakage sensors + auto edge detection | Laser sensor obstacle/edge detection + anti-fall algorithm |
| Weight (lb) | 2.87 | 2.65 |
Sources — HOBOT-2S: hobot.com.tw (verified 2026-08-01). Profi-Fensterputzroboter PR-041 V3: pearl.de (verified 2026-08-01).
What's the difference between the HOBOT-2S and Profi-Fensterputzroboter PR-041 V3?
Where the two actually differ on the specs we track (6 of 9). Matching specs are omitted.
- Cleaning speed mode: HOBOT-2S ~2.4 min/m^2, 12 cm/s movement speed vs Profi-Fensterputzroboter PR-041 V3 0.41 m^2/minute (12 cm/s movement speed)
- Spray system: HOBOT-2S Dual patented ultrasonic nozzles, 108kHz, 15um mist; 2x26ml replaceable water tanks vs Profi-Fensterputzroboter PR-041 V3 Ultrasonic spray function (per product name/listing; hardware is HOBOT-derived)
- Path planning: HOBOT-2S AI smart route planning (zigzag: horizontal pass then vertical) vs Profi-Fensterputzroboter PR-041 V3 AI path calculation using laser and pressure sensors, adapts to surface unevenness
- Safety tether: HOBOT-2S 4.5m rope rated to 200kg (per hobot.com.tw); some third-party specs list 150kgf vs Profi-Fensterputzroboter PR-041 V3 4.5m safety rope rated to 150kg
- Edge detection: HOBOT-2S Edge-leakage sensors + auto edge detection vs Profi-Fensterputzroboter PR-041 V3 Laser sensor obstacle/edge detection + anti-fall algorithm
- Weight (lb): HOBOT-2S 2.87 vs Profi-Fensterputzroboter PR-041 V3 2.65