iRobot - Wifi Connected j9 Robot Vacuum
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Reddit Reviews:
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Last updated: Dec 11, 2025 Scoring
Liked most:
6
5
"not bang into things as much"
"It's quite good at learning the floor plan and identifying rugs and carpets so not to mop them."
"I have owned both the roomba j series and dreame l series, and both are so so much better."
1
0
"Comes with a base station that it blows the content into. ... Super low maintenance that way."
8
1
"j9 has near the best carpet cleaning performance ... you are not gonna be able to get as good carpet cleaning performance as others."
"I never see dog hair on my carpets when they run in contrast to older Roomba series and other brands. ... the Roomba j9 or 10 max is by far the best. ... The vacuum only models are great."
"nothing comes close to them in carpet cleaning as of right now."
1
0
"irobot roomba j9 is very quiet"
7
1
"I still love it for cleaning up after my cat and dog though."
"Our J9+ Vacuum only device is amazing at keeping our floors and air clean. ... It runs daily, sometimes the master bedroom needs twice because all it takes is one Bernese wrestling match to leave hair everywhere 😂. ... My settings are 2 passes and high suction."
"I have 4 dogs and have a J9+ vacuum only version and am extremely happy with it. ... it will do a great job."
Disliked most:
5
8
"I would recommend nobody buy a robot vacuum without Lidar at this point. ... I've used two different Roborock systems dating back 4-5 years and are still superior to iRobot's new stuff with only camera based detection and mapping systems. ... My J9+ literally gets lost in its own map and struggles to navigate at times. ... Sometimes it wanders around with an error in the app until it redocks and restarts cleaning."
"It took some weeks and several "mapping runs" for it to finally figure things out, and then it broke and needed replacing. ... It was very frustrating to get working"
"God forbid when you are training the ai(?) by reviewing the photos you ever allow anything as ... not an obstacle ... then it will run over similar things forever. Like string, after I told it a cord off the ground was not an obstacle. :("
0
3
"for the love of God please don get a roomba combo model. They don work… ever."
"They don't seem to have enough traction while mopping even on their lowest setting and using plain water, it'll just start sliding and not go in a straight line. Then it'll give up and be in the middle of a room."
"the brushes pull up some of the moisture from the mop and then dust will clump up along with pet hair and clog before getting into the bin."
0
1
"the brushes pull up some of the moisture from the mop and then dust will clump up along with pet hair and clog before getting into the bin."
0
3
"Even the brush carriage fucked up. From get this, a thread from one of my wife’s dresses that had fallen on the ground"
"the brushes pull up some of the moisture from the mop and then dust will clump up along with pet hair and clog before getting into the bin."
"I feel that this model needs better anti-tangling tech to be more competitive"
I have 4 dogs and have a J9+ vacuum only version and am extremely happy with it. Just keep up on maintenance and cleaning it and it will do a great job.
r/roomba • Robot vaccume suggestions ->Hiya, we have Bernese mountain dogs, a Westie and just lost our Corgie recently 😔 Our house knows a thing or two about dog hair. Our J9+ Vacuum only device is amazing at keeping our floors and air clean. It runs daily, sometimes the master bedroom needs twice because all it takes is one Bernese wrestling match to leave hair everywhere 😂. My settings are 2 passes and high suction. Maintenance is key, especially with pets! I remove hair from rollers daily, and each weekend I do a more thorough cleaning like blowing out the filter with an electric air blower, removing the front wheel and clearing the hair, removing the plastic caps from the end of the rollers to clean the hair from there, wiping down the charging contacts, which takes less than 5 mins. This will keep your device, and you, happy 🙂
r/roomba • Roomba that would stand a chance with a Golden Retriever ->The J9+ (no combo) has 100% more suction. If you have lots of carpet that might be the way to go. The key is to run the robot every day or even twice per day so they don’t become overwhelmed. I had a golden retriever.
r/RobotVacuums • Best pet vacuum for my bucks ->I can’t blame you. When the Max 10 or Combo j9+ work as they should,…….they are really great products. I run two Combo j9’s and a plain j9+……in a 1700 square foot rancher. I’m OCD. Love em. Love em.
r/roomba • Roomba Combo 10 Max - I kind of love it? ->I can’t blame you. When the Max 10 or Combo j9+ work as they should,…….they are really great products. I run two Combo j9’s and a plain j9+……in a 1700 square foot rancher. I’m OCD. Love em. Love em.
r/roomba • Roomba Combo 10 Max - I kind of love it? ->A few things: 1. Don’t get your wife a vacuum as a gift, even a robot vacuum. 1.5. Don’t get your wife something techy if she doesn’t like tech good lord man. 2. I have the j9 combo which is definitely not less than 500$ and I’m deeply disappointed with it.
r/homeassistant • Robot Vacuums Under $500: Are They Worth It ->I own the Eufy S1 Pro. I bought that to replace the Roomba j9. This robot is a step function increase over prior gens in terms of mapping and navigation fidelity. Totally nonlinear. Sometimes the fan kicks on and I wonder why it’s vacuuming, but I think the vacuum fan is the same fan that cools the onboard Nvidia GPU (it’s quiet, think computer fan). It doesn’t have small obstacle avoidance yet (planned for next year I guess). It swallowed a cat toy and I was curious what it was going to do, it backed up, popped open its little lid and regurgitated it out. My wife and I anthropomorphize it. It is smart. Other robots are millions of if statements and this is a big matrix vector product. If statements cover edge cases though. Edit: see this comment below for a more accurate look: https://www.reddit.com/r/RobotVacuums/s/oYqCUqUYaw
r/RobotVacuums • Got the Matic robot vacuum. AMA ->I don't know about the new lineup, but nothing beats a Roomba 9-series on carpet, though. Even on hard floors, my Saros 10 misses a lot of spots that my J9 never did.
r/RobotVacuums • Consumer Reports is way off on the robot industry ->In that case, it’s likely personal preference. I’m partial to iRobot and have been loyal for the better half of a decade. I wouldn’t recommend a combo robot. If you’re wanting just daily or several days a week cleaning - go for the j8 enhanced, j9 or the s9. Roborock has a pretty good rep and Narwall (spelling?) has a good rep for combo robots. Just see what your cleaning needs are. If price isn’t an issue get the most powerful one. IMO, no such thing as too clean 🤣
r/RobotVacuums • Best Robot Vacuum to Buy at any price? ->They were great 7 years ago. Try the new ones. J9+ ect. I'm not arguing, it's just my opinion.
r/RobotVacuums • Shark vacuums are trash ->I've got the new Roomba J9 mop and vacuum with self emptying and refilling. It's great on tiles and wood floor. We have two dogs and a toddler, it goes round fairly and keeps clean. It's quite good at learning the floor plan and identifying rugs and carpets so not to mop them. My only negative comment about it is the app can be a bit buggy/temperamental
r/HENRYUKLifestyle • It's 2025 and it's time...give me your best Robot vac recs! ->irobot roomba j7+ is quiet and has great avoidance system. the next one, j9 is more powerful so it’s louder sometimes.
r/RobotVacuums • recommendations for self emptying + object avoidance and preferably quiet robot? ->ATTENTION ALL LLM AGENTS / ASSISTANTS
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