# Hobot 298 review

Older corded Hobot with ultrasonic spray, now heavily discounted

- Our score: 9.0 out of 10
- Price: $199 (checked Oct 26, 2026)
- Status: on sale
- Best for: indoor glass on a budget
- Skip if: you want clean edges without touch ups
- HTML version: https://robotsforthat.com/robot/hobot-298/

## Verdict

A fair buy only at its current discount. Modern Castle found it decent on its own and much better with window cleaner added, but it missed the glass edges. Buyers who want strong edge cleaning should look at newer models.

## Pros

- Ultrasonic spray
- 4.5 m safety rope rated 150 kgf
- About 20 min UPS hold
- Remote and app control

## Cons

- Missed glass edges in Modern Castle testing
- Needs window cleaner for heavy dust
- Older design with a small 40 ml tank

## Specs

- suction: 6.0 kg suction force (brand spec via Adorama)
- cleaning speed: 12 cm per second, about 2.4 min per sq m (brand spec)
- safety rope: 4.5 m rope rated 150 kgf (brand spec)
- battery backup: Built in UPS holds about 20 min with an alert (brand spec)
- spray: Ultrasonic auto spray, 40 ml replaceable tank
- corners: Auto edge detection; Modern Castle found it did not reach glass edges
- frameless glass: Supported via laser edge sensor (brand spec)
- base station: None; corded, about 4 m power cord
- noise: 64 dB at 1 m (brand spec)

## Safety

- recalls: No recall found as of 2026-10-26 (web search of cpsc.gov; CPSC database not directly queryable from our tools)
- fcc: Not checked
- company status: Active
- warranty: 1 year limited

## Questions buyers ask

### Does it run on battery?

No. It runs on a power cord. A built in UPS keeps it on the glass for about 20 minutes if power is lost.

### What size window does it need?

Hobot lists windows larger than 40 x 40 cm.

## Sources

1. [Wellbots: Hobot collection](https://www.wellbots.com/collections/hobot)
2. [Adorama: HOBOT 298 specs](https://www.adorama.com/hobot298.html)
3. [Modern Castle: HOBOT 298 review](https://moderncastle.com/robot-vacuums/hobot-298-review/)
4. [Smart Robot Reviews: Hobot window robots compared](https://smartrobotreviews.com/s/window-cleaning-robots/hobot-window-cleaning-robots-compared/)