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iRobot Roomba j9+ Self-Emptying Robot Vacuum
iRobot Roomba j9+ Self-Emptying Robot Vacuum
Brand: iRobot
4.2
(1)
Buy from Amazon
Good
Aesthetic design & finish
: 4.6
Assembly and Setup
: 4.5
Auto-resume after recharge (robotic)
: 4.6
Automatic suction adjustment (dirt sensing)
: 4.4
Battery runtime / Charging time
: 4.5
Build quality & durability
: 4.4
Cleaning performance on carpet
: 3.5
Cleaning performance on hard floors
: 4.8
Coverage efficiency (how completely a robot covers a floor)
: 4.5
Dust-bin capacity
: 4.4
Dust-bin emptying
: 4.7
Hair-wrap prevention / anti-tangle tech
: 4.2
Mapping/navigation accuracy (robotics)
: 4.6
Mobile-app functionality & reliability
: 4.0
No-go-zone / virtual-wall precision (robots)
: 4.5
Obstacle & cliff avoidance (robots)
: 4.7
Pet-hair pickup efficiency
: 4.7
Self-emptying base
: 4.8
Status indicators & maintenance alerts
: 4.6
Value-for-money
: 4.2
Voice-assistant integration (Alexa/Google/Siri)
: 4.5
Warranty
: 4.0
Bad
Edge-cleaning effectiveness
: 1.5
Noise level
: 2.0
Reviews
iRobot Roomba J9+ Robot Vacuum Review 2024
What We Loved
Aesthetic design & finish
Sleek black base and low-profile robot blend into décor.
Assembly and Setup
Quick, app-guided Wi-Fi setup took under 10 minutes.
Auto-resume after recharge (robotic)
Returns to base, recharges, and continues cleaning automatically.
Automatic suction adjustment (dirt sensing)
Boosts power automatically when moving from wood to carpet.
Battery runtime / Charging time
Runs up to 180 minutes—longer than earlier J-series models.
Build quality & durability
Solid construction; rubber brushes withstand weekly rinses.
Cleaning performance on carpet
Good on low-pile carpet; struggles with medium and high pile.
Cleaning performance on hard floors
Picked up every speck of flour, pet hair, and kibble on hardwood.
Coverage efficiency (how completely a robot covers a floor)
Cleaned in neat rows and left few spots untouched.
Dust-bin capacity
Internal 0.3 L bin plus large dock bag keeps hands-off for weeks.
Dust-bin emptying
Bag clicks in cleanly and removes without dust clouds.
Hair-wrap prevention / anti-tangle tech
Dual rubber brushes resist tangles and are easy to clean.
Mapping/navigation accuracy (robotics)
Accurately identified rooms and rarely lost its way.
Mobile-app functionality & reliability
Intuitive scheduling and mapping tools with one brief connectivity hiccup.
No-go-zone / virtual-wall precision (robots)
Keep-out zones worked flawlessly every run.
Obstacle & cliff avoidance (robots)
Dodged toys, cords, and pet messes with ease.
Pet-hair pickup efficiency
Daily runs left no visible dog hair behind.
Self-emptying base
Dock’s 2.4 L bag means emptying only every couple of months.
Status indicators & maintenance alerts
App’s product-health section flags filter and brush changes.
Value-for-money
Pricey, but hands-off convenience feels worth the investment.
Voice-assistant integration (Alexa/Google/Siri)
Google Assistant and Alexa commands pause or start cleaning.
Warranty
Backed by a 2-year limited warranty, longer than many rivals.
Needs Improvement
Edge-cleaning effectiveness
Round body left flour in corners and along baseboards.
Noise level
61–67 dBA while cleaning and 93 dBA when emptying—noticeably loud.
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