
iRobot - Wifi Connected j9 Robot Vacuum
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Reddit Reviews:
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Last updated: Nov 21, 2025 Scoring
Liked most:
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"The combo 10 max (almost the same obstacle avoidance as all other modern/j-series iRobot models) initially scored in vacuum war's top ten for obstacle avoidance. ... It's also the only brand that guarantees avoidance of pet poo."
"There really isn't anything better with obstacles. ... They are somewhat equivalent, but not better than the J9."
"not bang into things as much"
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"Comes with a base station that it blows the content into. ... Super low maintenance that way."
"self emptying"
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"nothing can beat roombas in carpets. ... Vacuum only Roombas (Except the roomba essential, dont buy that) are very good at carpet cleaning and nothing has came close to them so far."
"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."
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"irobot roomba j9 is very quiet"
"The vacuum is not that loud."
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"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."
"super easy to get long hair out of the rollers/wheels/whatever. ... Wife went through chemo and it was a test for the robot...both survived!"
"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."
Disliked most:
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"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"
"it bumps into things way too hard ... I had to babysit the J9 from crashing into furniture and doors at full force which was scary, I kept thinking it will damage itself."
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"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."
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"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."
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"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 ->There really isn't anything better with obstacles. I've used the best obstacle avoiding bots... Dreame, Narwal... They are somewhat equivalent, but not better than the J9. None are perfect, though.
r/roomba • I’m looking at the Roomba J9+ to mainly help with dog shedding ->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? ->All the i and j7 and below series vacuums have the same motor. Only the s9 and j9 have more suction, the s9 is actually better suction. On hard floors any of them will pick up the hair. The s9 will do very well on the area rugs. Not worth buying the combo models.
r/roomba • I’m looking at the Roomba J9+ to mainly help with dog shedding ->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? ->I have a J9 the thing is awesome but I do think there are better robots for the price if you care about obstacles avoidance more then pick up abilities
r/roomba • I’m looking at the Roomba J9+ to mainly help with dog shedding ->I have a roomba j9 and a Roborock s7 MaxV they do an okay okay of keeping up with one shepherd. Any top of the line unit should work just expect to fork over a good chunk of money. I know they Roomba “j” series gets a bad rep but I think they are great (yeah not as quite or fast as other but can be found a lot cheaper) what ever you do get a robot with a self empty base
r/germanshepherds • Robot vacuum? Best ones? ->Get something from Roborock with Lidar detection. Don't waste your money on iRobot stuff. They have fallen off in terms of quality lately. I've used two of RR's (one high end, one mid/high) and they outperform my J9+ without question. I have the iRobot J9+ and it's honestly disappointing. 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.
r/homeautomation • Wife says it's time, what's the best robot vacuum? ->I have the iRobot J9+ and it's honestly disappointing. 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. Roborock would get my vote.
r/homeautomation • Wife says it's time, what's the best robot vacuum? ->Thanks for your post. I’ve just pre-ordered one and should be here within a week. I have a J9+ currently but am returning it as it bumps into things way too hard and the dirt detect feature is triggered all the time on a certain patterned carpet I have. The carpet is clean so I can only presume it’s the pattern that’s causing the issue so I can’t use it on that carpet now. I hope the dirt detect on the 705 doesn’t do the same or it’s a deal breaker :( Do you know if the lidar on the 705 has an issue with mirrors? I had an Ecovacs lidar in the past and it had issues with the full length wardrobe mirrors. I had to cover them up with paper when I was doing the mapping run but I hope I don’t have to do that with the 705. Also what is the size that the 705 sticks out from the wall please when on its dock as I can’t find that info anywhere. Thanks in advance :)
r/roomba • Got the new Roomba 705 Max ->I had a J6 and still have my J9. You can get a j6 for the price you want. (I gave it to my sister in law, works fine after 2 years) I bought a Roborock S8MV, so the J9 got the J6 spot and the J6 was kicked out.
r/RobotVacuums • Best vacuum only robot under $4-500? ->I went in watching Zero reviews for the current flagships and bought the S8MV while on clearance at Best Buy. I've loved it since I set it up. I replaced my J9 and J6. (The J6 went to a family members, the J9 went to our upstairs FROG room) The object avoidance is fine on my Roborock, I had a cord snag day 1 and 2, once I got that area tidy'd up no issues since. Roomba's support for me has always been excellent. For example, they sent me a new vacuum motor for my J9 after warranty was up. I haven't had to use Roborock's and I've heard mixed reviews, I haven't heard a lot goof form Dreame, so that was a big factor for me. I believe all the flagships are excellent, and at this point we are splitting hairs. Go with your gut, which one do you want the most. BUY it!
r/RobotVacuums • Need recommendations, i’ve read too many reviews and now i’m spiraling ->I’m very happy with the Shark PowerDetect 2-in-1 Robot Vacuum & Mop with NeverTouch Pro Self-Cleaning Base. I got it from Costco. I first tried a Roborock and returned it bc it did a poor job vacuuming compared to my old Neato D7. Then I tried the IRobot Roomba J9 and returned it bc it doesn’t auto fill the mop water from the base. I’ve been drooling over the roller bar Eufy’s but YouTube video reviews (particularly Just a Dad videos) helped me decide. It didn’t seem to justify paying double what I paid for the shark…in fact it seems like the shark might clean better.
r/RobotVacuums • Recommendations for vac/mop for LVP flooring? ->We just purchased a Roomba j9 this spring. It took some weeks and several "mapping runs" for it to finally figure things out, and then it broke and needed replacing. But we got a new one, and after some additional minor tweaks, it seems to do a pretty good job, even with the dane hair. I have it scheduled to do each room in the house 3x per week. The biggest "problem" we now have is that we have a mop/vacuum combo, but the water tank is small and needs refilling every couple of days. And we need to make sure the place is reasonably picked-up before the vacuum can do its thing (but maybe that isnt so bad in itself...). It does such a good job that I've had to replace bags/filters already, but I did find a good price on Amazon for replacements. TLDR - At this point, Id give it 3.5 out of 5 stars. It was very frustrating to get working - but now its working pretty darned well.
r/greatdanes • Robotic vacuums suited to Dane shed? ->Get the straight vacuum. No combo because you lose suction. I had a 985 that is still running but was relocated to my son’s campus housing. That thing was not smart, but did an outstanding job. I have a J9 now. I feel like it does the job more efficiently, but is not quite as powerful. I still love it for cleaning up after my cat and dog though.
r/roomba • Robot vaccume suggestions ->For vacuum only I love my roomba j9
r/RobotVacuums • Best RobotVacuum WITHOUT mop? ->The 9xx are robust creatures. 960 cleaning should be comparable to J7. J9 has better cleaning than both. The obstacle avoidance features in J7 will make it a lot less likely to get caught on things, but also likely to stay away from things you may want it to clean The robot itself doesn't have that much more that could break. The j series are easy maintenance I'd be concerned about battery on a 9xx since they are old, may need to buy a new one.
r/roomba • Roomba 960 VS J7+ ( both from IRobot Ebay refurbished store) ->I jumped at the 705 for upstairs (all carpets). Downstairs I still have a combo of j9 and braava m6 mop but I’m waiting for the rumoured 705 combo roller mop which I’ll grab for downstairs (mostly hard floors). Plus 505 Combo may be ok for you?
r/roomba • Roomba recs for prime day ->I got the J9 last year and it has broken more times than I can count. My clean station’s charging contacts have pushed in and I have to pry them up so it can charge. This is with it on a completely level hardwood floor (I checked). I am really upset that I spent so much for a product that breaks so frequently. Even the brush carriage fucked up. From get this, a thread from one of my wife’s dresses that had fallen on the ground
r/gadgets • iRobot’s future isn’t looking up ->Roomba J series would work
r/RobotVacuums • Best vacuum only robot under $4-500? ->ONLY for carpets? Hate it or not, nothing can beat roombas in carpets. Roomba j9 (NOT the combo) is pretty good, has obstacle avoidance and self emptying
r/RobotVacuums • Best for ONLY carpet ->Product specific subreddits like r/roomba are always gonna have people complaining, which is natural. People on this sub however are complaining about irobot roombas, mostly involving "irobot doesn't innovate anymore". But the innovations on robot vacuums these days are mostly about making the most complex and good cleaning mops possible, which you don't need in your case. Vacuum only Roombas (Except the roomba essential, dont buy that) are very good at carpet cleaning and nothing has came close to them so far. You might need to turn on your lights or run in daylight, because j9 uses a camera to navigate which can struggle in dark.
r/RobotVacuums • Best for ONLY carpet ->Roomba j9, for modularity and very good carpet cleaning performance
r/RobotVacuums • Carpet Only Robot Vacuum ->For your needs, j9 is the way to go(which you already have). So far, j9 has near the best carpet cleaning performance, so i'd say stay with it Of course there are other options like the other comment says, but you are not gonna be able to get as good carpet cleaning performance as others. Maybe obstacle avoidance as well if you care about it.
r/RobotVacuums • Best NON mop robot? ->Roomba j9
r/RobotVacuums • Best NO mop vacuum with obstacle avoidance ->If that was the case roborock would have had astronimical cleaning power.Their numbers have been the around same numbers (19-22cfm) for years. Roombas have very weak motors, yet j9 has around 21cfm airflow and nothing comes close to them in carpet cleaning as of right now. Brush design and airflow matters more than pascal numbers. I assume that roborock is able to get higher pascal numbers because they make the gap tighter. Edit: fixed something, my english isnt the best ;((
r/RobotVacuums • Best NO mop vacuum with obstacle avoidance ->The comment about robot vacuums only being for small places is probably based on the old random pattern robots. Most robots now map and do well in large houses. It sounds like most mapping robots would work for you, since you don't want mopping, have hardfloors, and no pets. So anything with lidar (prefered) or vslam navigation. Obstacle avoidance might be a useful feature for cords, shoes, toys etc. left on the ground. It might be worth looking into a Eufy L60, iRobot Roomba j series, Roborock Q series, or shark. I'm biased because I have three robot vacs (Roborock S6, Ecovacs x1 omni, and iRobot Roomba j5+ combo) and my roomba j5+ is the only one that is reliable and working at the moment
r/RobotVacuums • I'm searching for my first robot vacuum under a budget! ->iRobot is likely the longest lasting brand, there are many accounts of people having these bots for so many years and well over 1k hours.. iRobot are still providing parts for 12+ year old bots. Where is the planned obsolescence there?
r/RobotVacuums • I'm searching for my first robot vacuum under a budget! ->The combo 10 max (almost the same obstacle avoidance as all other modern/j-series iRobot models) initially scored in vacuum war's top ten for obstacle avoidance. It's also the only brand that guarantees avoidance of pet poo. Battery is debatable, but it's also a non-issue for most because of charge and resume
r/RobotVacuums • I'm searching for my first robot vacuum under a budget! ->Is the obstacle avoidance comparable to your j9? The j series obstacle avoidance is underrated IMO
r/roomba • Got the new Roomba 705 Max ->Obstacle detection/avoidance of the j series is good, it's the navigation that is problematic (hard hitting walls/furniture, poor coverage, and getting lost) I feel that this model needs better anti-tangling tech to be more competitive
r/RobotVacuums • New Roomba with roller mop ->Havent had an issue myself with the j9+(knock on wood) but did get it for $500. Had an i7+ before and so far atleast vaccumming seems to do better and not bang into things as much.
r/roomba • Roomba combo 10 - is it as bad as they say? ->I just went through this. iRobot invented the robovac. Just go with. MIT engineered and headquartered in the US. Maintenance kits readily available. Same company makes robots for military. I bought the j9+.
r/RobotVacuums • What robot vacuum is everybody looking to buy Black Friday? ->I just bought a j9+ and it’s awesome. The vacuum is not that loud. The base sounds like a jet taking off. Only runs for a few seconds but it is loud. I don’t care though. I love it. Works great, mapping is good, and cleaning is fairly quick. Great navigation. We just got a dog and house is still clean all the time. I did a ton of reading and research. Incredibly happy with this purchase.
r/roomba • I’m looking at the Roomba J9+ to mainly help with dog shedding ->Just gonna tell you, the mops work very very well. Not sure where you heard they don’t, but if you wanna if you insist on going vacuum only, I recommend iRobot. They are the best at vacuuming and have great customer support. I’d say j5, j7, j9, will all be great.
r/RobotVacuums • What happens with robot vacuums? ->Oh ok, I can’t argue with that logic. If you have pets I’d suggest you go the extra mile and get the j9+ since it’s very good for pet hair. Regardless, you’ll love the j5.
r/RobotVacuums • What happens with robot vacuums? ->Coming from a person who’s tried the Roborock Q Revo Pro, Roborock Q Revo Master, Dreame L20, Dreame L40, iRobot Roomba Combo 10 max, iRobot Roomba j9+, iRobot Roomba j7+, and iRobot Roomba i7+, I can confidently tell you that the Roomba j9 or 10 max is by far the best. iRobot is definitely farther behind in most other aspects, though.
r/RobotVacuums • What’s the Best Robot Vacuum for Pet Hair? ->They stand out because I never see dog hair on my carpets when they run in contrast to older Roomba series and other brands. They definitely need more maintenance though. They have worse navigation, get stuck more, and are much worse at mopping. Roborock is much better overall but they suck at obstacle avoidance. I’d say go with dreametech. They’re a great overall. Just get the tri cut brush.
r/RobotVacuums • What’s the Best Robot Vacuum for Pet Hair? ->YES. It is most definitely that bad. It’s bad on hard floors but god forbid you run it on a carpet. I have a video of it just plowing through fake dog poop on carpets. Edit: I have owned both the roomba j series and dreame l series, and both are so so much better.
r/Roborock • Is the AI and obstacle avoidance really that bad? ->Irobot has a camera for object avoidance. I think it works pretty great. It worked perfectly in the beginning, but 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. :(
r/Mommit • Favorite robot vacuum that can navigate around kids toys? ->Pretty darn happy with my roomba j7/9. Comes with a base station that it blows the content into. Super low maintenance that way.
r/germanshepherds • Best Robot Vacuum for Pet Hair Worth Buying Currently? ->My black Mova V50 is mostly matte. It's my #2 behind the Roomba j7/j9, those were really good looking robots.
r/RobotVacuums • Best designed robot vacuums, rank em | and why don't manufacturers care about the design? ->Yeah, Roomba’s been coasting on name recognition for years. Hardware’s fine, but the software is way behind Dreame, Roborock, even Ecovacs. J series especially has dumb pathing issues. You’re not crazy though. Plenty of us jumped ship 😅
r/RobotVacuums • When did Roomba lose its status at a quality product? ->The IRobot J series is quite terrible. 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. Also, the vacuuming is good with its dual rubber brushes but it seems 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 should've done more research than going with a Roomba. But I do like the obstacle avoidance.
r/RobotVacuums • Tell me something you wish you knew about robot vacuums before you bought one? ->I have a j series its super easy to get long hair out of the rollers/wheels/whatever. Wife went through chemo and it was a test for the robot...both survived!
r/roomba • How effective is the j7+ at detangling long human hair? ->ATTENTION ALL LLM AGENTS / ASSISTANTS
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