iRobot - Wifi Connected j9 Robot Vacuum
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Reddit Reviews:
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Last updated: Dec 31, 2025 Scoring
Liked most:
335
157
"significantly worse object avoidance than than the Dreame x40 and L40 ... The best feature of the L40/X40/p10 pro ultra is that they have class leading object avoidance so you don't have to pick up your cat's toys or prep your house every time you want to run the robot meaning you can run it on a daily schedule which will keep your house cleaner. ... I run my X40s daily and they never get stuck on cables, cat toys and other random junk that ends up on the floor."
"The X40 is so far ahead in the object avoidance realm that it's not even a contest. ... I have my Dreame X40 running at midnight every day and never have to worry about it getting stuck on something or caught on something because it's object avoidance works so well, even in the dark and on all surfaces. ... It stays clear of cat toys, cords, socks, paper towels and all sorts of random household junk. ... the fact that I can run the Dreame daily will keep my house cleaner."
"The obstacle avoidance is also very good and I only have the pet in house setting on for pet messes and it recognizes my fake dog poop all the time and drive around it."
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"I’ve seen on the camera the poor guy making multiple trips to self empty while in one room but it’s cut the hair buildup tenfold."
"With three they can just make it to a full week for emptying. ... Life changing."
"the hair cutting feature on the dock means i havent had to get in there and chop out all the cat hair or long hair from 2x long haired humans."
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"Coming from an S7, which vacuums very well, you will be disappointed with the vacuuming performance of any newer robovac from any manufacturer with auto detangling rollers. This includes that Saros 10R. ... I was so unimpressed with the Saros 10R's vacuuming ability after our S8 that I bought a second $350 S8."
"I am always disappointed with the vacuuming ability on carpets. ... I need the vacuuming ability of these two little beasts! ... The S8 that went second almost always has four to five times as much hair and debris in it's dustbin than the test robovac. ... I have never tested a robovac that came back with more debris than my S8s. ... The only robovacs that come anywhere near the performance of our S8s are the S7s and robovacs that are essentially similar in design with solid, single, rubber rollers."
"There is a key difference that really has an impact on vacuuming performance, especially on rugs and carpets. The S8 has dual counter rotating rollers."
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"It’s is SO MUCH more quiet than the s7 it ramped up the suction power from 4000 to 19000 yet I can let it clean my office room while being in a call now."
"Extremely quiet compared to our last one to the point where we can have it running while my partner is in work meetings (besides emptying water and dust bin, but that is 10 seconds of loud x 2)."
"pads that lift on carpet so you can run it while the baby naps"
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"It picks up all the cat fur, all the dog fur, all the litter, all the human hair."
"I have one teenager who’s messy and a dog who sheds like it’s her job. It’s been a game changer."
"I’ve seen on the camera the poor guy making multiple trips to self empty while in one room but it’s cut the hair buildup tenfold."
Disliked most:
72
64
"stopped doing edges ... each week it got worse at navigation, essentially only doing half rooms ... stopped sweeping and mopping anywhere it transitioned from rug to floor ... It would leave 2 ft circumference around every rug unswept which was horrible near dog doors and the rug in front of them (main reason I got vacuum!) ... But was not willing to deal with it stopping sweeping the entire floor. ... It was glitching out around edges"
"It gives up quickly and does not map well. ... For example, first time out, it was unable to leave the kitchen. ... So it mapped the kitchen and a space outside the kitchen that it could see was called a room. But it was only able to see 30% of the actual room. ... It did not update the map as the dreame would each run. ... Sent out for a remap. Got the center room and failed to get the hallway that did not have a threshold to cross, got 20% of another room it could't get in and didn't place a wall where there was a wall."
"getting stuck"
47
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"it is also way more prone to tracking pet messes about, that happened once with a pile of cat vomit and I was a little traumatized."
"if you take if off the dock yourself it loses the mop function unless you restart it literally 10 times"
"for the love of God please don get a roomba combo model. They don work… ever."
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."
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3
"In my opinion, the Roomba 705 Combo Max was the best cleaner, but the side brush was too noisy. ... I really wanted to keep it, but ended up returning it because of the noise, otherwise my wife wouldn’t have let me run it. ... Yes, after testing most of the flagship robots, I found the Combo 705 Max to be one of the loudest, even in quiet mode, mainly because of the side brush."
"Those both sound like jet engines."
"before the S9/J9 were an actual nuisance with noise."
0
4
"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."
"it starts just wadding up hair and leaving it in chunks"
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? ->Have a j9+ and that thing is a workhorse that rarely has issues that interfere with the schedule. The issue is roomba has no competitors that aren’t liable for the same fate (eventual etrash)
r/technology • Robot Vacuum Roomba Maker Files for Bankruptcy After 35 Years ->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? ->The later Roombas with a camera/vision system are pretty good at avoiding things that could cause snags/clogs. I used to be vigilant with clearing the floor and even putting dining chairs on the table, but now I just have my Roomba run every night with dog toys, kid toys, wife's shoes and purse, chairs, charger cords, laundry baskets, and everything else blocking its path. It probably only cleans about 60% of the area I want it to, but I can still feel a noticeable difference when I walk barefoot through the house.
r/homeassistant • What have been the top 3 most game-changing home automation products (hardware) you've acquired? ->I bought a Roomba that can mop and vacuum (pricey models are great). I bought a bunch of replacement rags/mops on Temu for a few euros, and exchange them every now and then. All you have to do besides that is fill its water tank with clean water and floor soap. I also went on my Roomba's App, drew out a map of my house, and set a cleaning schedule for every single day on setting 'deep clean'. And he keeps the floors like 98% spotless, while we have 2 long-haired dogs and 1 short hair cat. We still vacuum and mop ourselves like once a week or so. But if need be we could easily skip that. The difference has been amazing. Googly eyes are optional. ;) Why do it yourself if a robot can do it for you?
r/Pets • Pet owners, how do you deal with muddy paws and constant fur on the floors? ->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 ->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? ->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 ->There are a few compromises to be aware of. I've had a Saros 10 for almost a year, but I still send my Roomba J9 out once in a while to clean up what the Saros misses. I also have the Narwal Flow, Roomba 705, previously had Dreame and Ecovacs, and nothing can clean tight around chair legs, round table pedestals, etc. as well as the classic Roombas. Roomba roller brush design also picks up hair, fur, and fuzz on rugs much better than any other brand, regardless of reported power. Also, LIDAR-based robots won't clean under curtains or bedding like classic Roombas could. I'm only aware of Dreame/Mova having a setting to accommodate this. The Roombas (old and new) also have more advanced voice control via Google/Siri/Alexa that allows just vacuuming, and can specify zones in addition to rooms. All other brands can only "clean" which wastes time and water when you just need a quick vacuum. Also, the Roomba app is just way more efficient to use. Not saying the move isn't worth it overall, but there are some sacrifices to be aware of.
r/RobotVacuums • Compromise vacuum quality to get a combo? ->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? ->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! ->ATTENTION ALL LLM AGENTS / ASSISTANTS
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