- Suction
- 6.0 kg suction force
- Spray
- Ultrasonic auto spray
- Backup battery
- Built in UPS holds
- Frameless
- Supported via laser
Hobot 298
Older corded Hobot with ultrasonic spray, now heavily discounted
Researched by Riley Hart · updated Oct 26, 2026
We started tracking this price on Oct 26, 2026 and have not found a past sale price yet, so we cannot say if $199 is a good deal. Black Friday is Nov 27, 2026, 31 days away, when robots in this category usually get their biggest cuts. Get a price drop alert.
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.
Best for: indoor glass on a budget. Skip if: you want clean edges without touch ups.
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
3 year cost of ownership
- Robot
- $199
- Total
- $199
No sourced running costs yet. We add parts and subscriptions as we confirm them.
Status and safety
- US availability
- ● On sale
- Recalls
- ● No Hobot robot recall in the CPSC database as of Oct 26, 2026. Checked daily.
- FCC authorized
- Not checked
- Company
- ● Active
- Warranty
- ● 1 year limited
Price history
Tracked dailyTracking started Oct 26, 2026 at $199.
Each day adds a point. Turn on a price alert to hear about drops.
Where to buy
- Wellbots
- $199 →
- Amazon
- See price →
Affiliate links. We may earn a commission. It never changes our score. Disclosure
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
What independent reviewers found
- On a sliding glass door it cleaned decently with water but left streaks and missed edges; with window cleaner added it removed most caked dust with minimal streaks.
- Modern Castle · 94%
Spec history
Checked dailySpec tracking starts with the next daily check.
Email me when 298 gets cheaper
We check prices every morning. One email per real drop, and you confirm your email first.
Own one? Tell us how it holds up
We email owners 3 quick questions now and every 6 months, then show the results here.
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.