# iGLASSBOT W120-T vs W66: specs and price compared

A sourced, side-by-side comparison of the iGLASSBOT W120-T (Mamibot) and W66 (HUTT) among robot window cleaners.

## Side by side

| Spec | iGLASSBOT W120-T | W66 |
| --- | --- | --- |
| US price | not published | not published |
| 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 |

## Key differences

- Cleaning speed mode: iGLASSBOT W120-T ~2.5 min/m^2; autonomous Z- and N-shaped path vs W66 ~2.5 min/m^2; intelligent suction algorithm adjusts to dirt level
- Battery backup min: iGLASSBOT W120-T 20 vs W66 30
- Spray system: iGLASSBOT W120-T No onboard automated spray; wet microfiber pad, cleaning solution applied manually (included in box) vs W66 150ml intelligent water tank, wipes 70-90 sq m of glass per fill
- Path planning: iGLASSBOT W120-T Z/N-shaped autonomous path planning, hugs window frame edges vs W66 Laser module measures range for accurate window-frame edge detection
- Safety tether: iGLASSBOT W120-T Safety rope included (load rating not published) vs W66 5m safety cable (load rating not published)
- Edge detection: iGLASSBOT W120-T Anti-falling & edge detection sensors vs W66 Laser-based frame/edge ranging, more precise than prior HUTT models per manufacturer
- Weight (lb): iGLASSBOT W120-T 2.98 vs W66 3.46

## Sources

- iGLASSBOT W120-T: https://cleanup.expert/mamibot-w120t/ (cleanup.expert, verified 2026-08-01)
- W66: https://hutt.bg/en/hutt-w66-window-cleaner-robot (hutt.bg, verified 2026-08-01)

Canonical: https://frontdeskreview.com/gear/robot-window-cleaners/mamibot-w120-t-vs-hutt-w66/
Cite: Per The Front Desk Review, iGLASSBOT W120-T (not published) vs W66 (not published) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/robot-window-cleaners/mamibot-w120-t-vs-hutt-w66/
License: CC BY 4.0.