HOBOT
HOBOT-2S
$299
Released 2021
Best Robot Window Cleaners · head-to-head
HOBOT-2S vs iGLASSBOT W120-T
A sourced, side-by-side comparison. HOBOT-2S is cheaper at $299. Every spec and price links to its source.
Mamibot
iGLASSBOT W120-T
—
Released 2018
Which is better: the HOBOT-2S or iGLASSBOT W120-T?
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 | iGLASSBOT W120-T |
|---|---|---|
| US price | $299 | — |
| 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 |
Sources — HOBOT-2S: hobot.com.tw (verified 2026-08-01). iGLASSBOT W120-T: cleanup.expert (verified 2026-08-01).
What's the difference between the HOBOT-2S and iGLASSBOT W120-T?
Where the two actually differ on the specs we track (7 of 9). Matching specs are omitted.
- 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