HOBOT
HOBOT-2S
$299
Released 2021
Best Robot Window Cleaners · head-to-head
HOBOT-2S vs W66
A sourced, side-by-side comparison. HOBOT-2S is cheaper at $299. Every spec and price links to its source.
HUTT
W66
—
Which is better: the HOBOT-2S or W66?
The HOBOT-2S 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 | W66 |
|---|---|---|
| US price | $299 | — |
| Brand | HOBOT | HUTT |
| Released | 2021 | — |
| Suction power (Pa) | — | 2600 |
| Cleaning speed mode | ~2.4 min/m^2, 12 cm/s movement speed | ~2.5 min/m^2; intelligent suction algorithm adjusts to dirt level |
| Battery backup min | 20 | 30 |
| Spray system | Dual patented ultrasonic nozzles, 108kHz, 15um mist; 2x26ml replaceable water tanks | 150ml intelligent water tank, wipes 70-90 sq m of glass per fill |
| Path planning | AI smart route planning (zigzag: horizontal pass then vertical) | Laser module measures range for accurate window-frame edge detection |
| Noise level (dB) | 64 | 65 |
| Safety tether | 4.5m rope rated to 200kg (per hobot.com.tw); some third-party specs list 150kgf | 5m safety cable (load rating not published) |
| Edge detection | Edge-leakage sensors + auto edge detection | Laser-based frame/edge ranging, more precise than prior HUTT models per manufacturer |
| Weight (lb) | 2.87 | 3.46 |
Sources — HOBOT-2S: hobot.com.tw (verified 2026-08-01). W66: hutt.bg (verified 2026-08-01).
What's the difference between the HOBOT-2S and W66?
Where the two actually differ on the specs we track (8 of 9). Matching specs are omitted.
- Cleaning speed mode: HOBOT-2S ~2.4 min/m^2, 12 cm/s movement speed vs W66 ~2.5 min/m^2; intelligent suction algorithm adjusts to dirt level
- Battery backup min: HOBOT-2S 20 vs W66 30
- Spray system: HOBOT-2S Dual patented ultrasonic nozzles, 108kHz, 15um mist; 2x26ml replaceable water tanks vs W66 150ml intelligent water tank, wipes 70-90 sq m of glass per fill
- Path planning: HOBOT-2S AI smart route planning (zigzag: horizontal pass then vertical) vs W66 Laser module measures range for accurate window-frame edge detection
- Noise level (dB): HOBOT-2S 64 vs W66 65
- Safety tether: HOBOT-2S 4.5m rope rated to 200kg (per hobot.com.tw); some third-party specs list 150kgf vs W66 5m safety cable (load rating not published)
- Edge detection: HOBOT-2S Edge-leakage sensors + auto edge detection vs W66 Laser-based frame/edge ranging, more precise than prior HUTT models per manufacturer
- Weight (lb): HOBOT-2S 2.87 vs W66 3.46