# HOBOT-2S vs iGLASSBOT W120-T: specs and price compared

A sourced, side-by-side comparison of the HOBOT-2S (HOBOT) and iGLASSBOT W120-T (Mamibot) among robot window cleaners.

## Side by side

| Spec | HOBOT-2S | iGLASSBOT W120-T |
| --- | --- | --- |
| US price | $299 | not published |
| Brand | HOBOT | Mamibot |
| Released | 2021 | 2018 |
| Suction power (Pa) | — | — |
| Cleaning speed mode | ~2.4 min/m^2, 12 cm/s movement speed | ~2.5 min/m^2; autonomous Z- and N-shaped path |
| Battery backup min | 20 | 20 |
| Spray system | Dual patented ultrasonic nozzles, 108kHz, 15um mist; 2x26ml replaceable water tanks | No onboard automated spray; wet microfiber pad, cleaning solution applied manually (included in box) |
| Path planning | AI smart route planning (zigzag: horizontal pass then vertical) | Z/N-shaped autonomous path planning, hugs window frame edges |
| Noise level (dB) | 64 | 65 |
| Safety tether | 4.5m rope rated to 200kg (per hobot.com.tw); some third-party specs list 150kgf | Safety rope included (load rating not published) |
| Edge detection | Edge-leakage sensors + auto edge detection | Anti-falling & edge detection sensors |
| Weight (lb) | 2.87 | 2.98 |

## Key differences

- Cleaning speed mode: HOBOT-2S ~2.4 min/m^2, 12 cm/s movement speed vs iGLASSBOT W120-T ~2.5 min/m^2; autonomous Z- and N-shaped path
- Spray system: HOBOT-2S Dual patented ultrasonic nozzles, 108kHz, 15um mist; 2x26ml replaceable water tanks vs iGLASSBOT W120-T No onboard automated spray; wet microfiber pad, cleaning solution applied manually (included in box)
- Path planning: HOBOT-2S AI smart route planning (zigzag: horizontal pass then vertical) vs iGLASSBOT W120-T Z/N-shaped autonomous path planning, hugs window frame edges
- Noise level (dB): HOBOT-2S 64 vs iGLASSBOT W120-T 65
- Safety tether: HOBOT-2S 4.5m rope rated to 200kg (per hobot.com.tw); some third-party specs list 150kgf vs iGLASSBOT W120-T Safety rope included (load rating not published)
- Edge detection: HOBOT-2S Edge-leakage sensors + auto edge detection vs iGLASSBOT W120-T Anti-falling & edge detection sensors
- Weight (lb): HOBOT-2S 2.87 vs iGLASSBOT W120-T 2.98

## Sources

- HOBOT-2S: https://www.hobot.com.tw/hobot-2s/ (hobot.com.tw, verified 2026-08-01)
- iGLASSBOT W120-T: https://cleanup.expert/mamibot-w120t/ (cleanup.expert, verified 2026-08-01)

Canonical: https://frontdeskreview.com/gear/robot-window-cleaners/hobot-2s-vs-mamibot-w120-t/
Cite: Per The Front Desk Review, HOBOT-2S ($299) vs iGLASSBOT W120-T (not published) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/robot-window-cleaners/hobot-2s-vs-mamibot-w120-t/
License: CC BY 4.0.