Mamibot
iGLASSBOT W120-T
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Released 2018
Best Robot Window Cleaners · head-to-head
A sourced, side-by-side comparison. iGLASSBOT W120-T is cheaper at —. Every spec and price links to its source.
Mamibot
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Released 2018
HUTT
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The iGLASSBOT W120-T wins 1 of the 1 specs we compare head to head; the other wins 0.
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✓ marks the stronger figure where "more" — or "less", for price and weight — is unambiguously better.
| Spec | | |
|---|---|---|
| US price | — | — |
| Brand | Mamibot | HUTT |
| Released | 2018 | — |
| Suction power (Pa) | — | 2600 |
| Cleaning speed mode | ~2.5 min/m^2; autonomous Z- and N-shaped path | ~2.5 min/m^2; intelligent suction algorithm adjusts to dirt level |
| Battery backup min | 20 | 30 |
| Spray system | No onboard automated spray; wet microfiber pad, cleaning solution applied manually (included in box) | 150ml intelligent water tank, wipes 70-90 sq m of glass per fill |
| Path planning | Z/N-shaped autonomous path planning, hugs window frame edges | Laser module measures range for accurate window-frame edge detection |
| Noise level (dB) | 65 | 65 |
| Safety tether | Safety rope included (load rating not published) | 5m safety cable (load rating not published) |
| Edge detection | Anti-falling & edge detection sensors | Laser-based frame/edge ranging, more precise than prior HUTT models per manufacturer |
| Weight (lb) | 2.98 | 3.46 |
Sources — iGLASSBOT W120-T: cleanup.expert (verified 2026-08-01). W66: hutt.bg (verified 2026-08-01).
Where the two actually differ on the specs we track (7 of 9). Matching specs are omitted.