Dreame - X40 Ultra
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Reddit Reviews:
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Last updated: Dec 18, 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."
551
129
"I also have two giant long haired (nonshedding excessively) cats. I shed hair a LOT. Worse than the cats. It works so well."
"It works great with long hair and long haired corgi fur in my home. This is absolutely tangle free in my use and the correct cover can stop hair from going to the sides."
"mopping is BETTER than i do."
36
5
"I can basically always trust my X40 to finish a midnight cleaning session in the dark and wake up to find it sitting in its dock and have clean floors in the morning."
"I think its hands down the best all around option right now, especially once you hook it up to the water line and drain, i run it daily in our house and we got rid of our cleaning help because of it."
"Never vacuum and mop by hand anymore!"
623
107
"battery lasts me forever, I charge it once a week and I game every day."
"16 days battery life on my fenix. ... The other aspect I really appreciate about my fenix is the battery life. 16 days or so. With everything I have to change these days (laptops, mice, keyboards, headphones, watches, phones), I appreciate not having to worry about it too often."
"Oh, and the battery lasts days even when exercising a lot (weeks without excercise)."
31
4
"Dreams X40 is the best if you want local control."
"I've got a Dreame X40 specifically because it's supported by Valetudo. (Local only cloud replacement so you can use most of the features of the robot without needing any cloud services."
"when it comes to setting up schedules/zones, that can all be customized to your liking in the app. ... you specify you need zone mapping and scheduled cleaning for specific zones which you can most definitely program. for example: if you'd like room 1 and room 4 to only be vacuumed at 4pm but not room 2 and 5 then yes you can do this."
Disliked most:
6
12
"I’m actually hoping the new Dreams firmware that allows the side brush on carpet rolls out soon. If it doesn’t, I think I’ll be disappointed because of have several area rugs that are close to walls that will not clean well without it. ... Really hoping firmware is released in the US soon for the X40 to allow the side brush on carpet. I’ll probably return it if it doesn’t because I think it I’ll reduce its effectiveness on my kitchen floors."
"Yes. It does not spin on Carpet which is the same as Dreame. Dreame however 9 months later implemented the ability to spin the brush on carpet if you wanted to via the app. ... Dreame, meanwhile, it took nearly a year to enable side brush spinning on carpets, and Roborock now faces pressure to implement similar improvements."
"the x40 ultra doesn't spin the side brush on carpet which makes it a no go if you have edge to edge carpets."
5
54
"Support had me go through all the usual troubleshooting steps — no fix. ... I was told a replacement had been “processed” and would ship. ... It’s now been nearly two weeks and my order is still showing as “processing”. ... I’ve exchanged 24+ emails with Support. The replies are all scripted apologies and vague “please wait” responses. ... Their site promises 3–5 days for new orders, yet for a replacement I’ve paid almost $500 for, I’ve received nothing. ... I’ve asked for a refund policy and escalation, but I keep getting ignored."
"I have never faced such a horrible service from any products in my life. ... Their service is ridiculous. ... The technician would come home and then inspect the device and raise a ticket for the spare part. So the spare part will be couriered to the customer directly after 2 or 3 weeks. Once this reaches your home, the technician will come again and replace that part. This is ridiculous. ... They don't provide service, they don't provide warranty. ... n one of my friends case, they had denied warranty saying there is fungus on board and its caused by water damage."
"Ecovacs has the worst after sales of any company in any place of the world I have ever experienced. ... The company won’t take responsibility and goi around in circles. ... They wasted more than 6 months after talk to multiple people and site visits and it was escalated till the head of the after sales who I will name clearly: Tanmay Gangani, who is an absolute unprofessional and blatant liar with no sense of responsibility and ethics."
62
60
"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"
"The j7 got stuck often, maybe 1 out of 4 cleanings it either sucked up a cat toy or jammed itself under something."
"It is dangerous to trust it if you have a risk for pet accidents."
5
25
"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"
"I cannot use that for these vacuums with factory firmware because then the app just won't work no matter which wifi my phone uses. ... The apps always phone home instead of using LAN."
"The main problem I have with them though is just the random problems that happen every now and then. ... the problems are always something really annoying like a really loud buzzing or just flat out the audio stops working. ... it's just small problems that shouldn't even happen that make them quite annoying to use sometimes."
0
9
"The tricut brush which you can purchase and install does a excellent job preventing hair wrap but I have found it is significantly less effective on hard floors. ... It seems to do fine in most cases but I did notice the robot fails to pick up medium sized debris like cat treats. ... Yesterday I did some drywall patching and had some drywall chunks and pieces for the robot to pickup and the tricut brush just pushed the debris around and accumulated it in the brush guard failing to push it into the dustbin. ... It would appear to pick it up but when the robot turned around all the debris would be left at the spot where the robot turned."
"It would leave rolled up hair everywhere since day one"
"For the L40 ultra, I also had the issue where it had very poor hard floor performance even with the tricut brush. ... Turned out that the roller wasn’t touching the floor so debris would not be picked up and was defective."
Quick answer: Yes Explanation: Whilst spinning mops were more of a "it maintains a clean floor reasonably well" deal. The rollers are a "I can clean the entire house properly without you doing anything" deal. Some will argue they are worse with dried on stains, which I guess is true, but reality is, with my Aqua 10 has rarely seen a stain which it did not remove on the first pass. Anything from like dirty shoe footprints to oil from cooking it picked up in one pass. (If that botters you, you can just quickly spray the dirty stains with some water before it passes over it, so it is a bit soaked I guess, but in my experience the X40 also had problems with such stains). Now lastly maintenance. And honestly, this is the main issue, right now we are using first gen rollers, which the manufacturers didn't really take time to consider how the products themselves would be cleaned. I found that having it vacuum, and then vacuum and mop was the best way to prevent any debris entering the mopping system, so no need to clean it every week, rather every 2 weeks maybe.
r/RobotVacuums • Are roller mops the only sensible choice now? ->If you have hardwood flooring, get Eufy S1 Pro (best mopping device. No other vacuum is remotely close) If you have some carpets, get Dreame x40 Ultra (edge cleaning and mopping)
r/RobotVacuums • Best robot vaccum and mop ->I own x40 and s1 pro Eufy has excellent support. Dreame are ok it seems sometimes they don't understand what we are trying to say. I can be wrong, but it feels like they use Google Translate to reply to emails. They have better overall product 🙂 S1 Pro is best if you don't have carpets.
r/RobotVacuums • Dreame x40 is currently the best vacuum out there. ->Eufy has excellent customer service. They sent me replacement parts for S1 Pro and took a follow-up 2 times to make sure all was working fine. Dreame customer service sucks. I have feeling no 1 over there understand basic English or the translation app they use is joke. I was able to dispute the situation with my credit card and got a refund for $1800. Never buying that crap again. This was my 2nd X40 purchase for my parents.
r/RobotVacuums • Dreame is a scam ->That would make it non returnable sadly. Weird how it get scratches so easily though because my X40 Ultra has zero scratches after months.
r/Dreame_Tech • L40s Pro Ultra is absolute disaster on Carpet. ->Just got the [Dreame X40 Ultra ](https://www.reddit.com/user/Accurate_Shine5695/comments/1jhg9u6/best_highend_robot_vacuums_of_2025_a_quick/)and it’s a game changer for pet hair! Super strong suction, picks up all the fur without any issues. Plus, the vacuum AND mop combo is perfect for keeping everything spotless. The self-cleaning and self-emptying features are a big bonus, less hassle for me. Highly recommend if you’ve got pets!
r/RobotVacuums • Best Robot Vacuum for Pet Hair Now ->The Dreame X40 Ultra uses advanced LiDAR navigation and AI-powered object recognition to effectively detect and avoid obstacles, including small objects and potential hazards. Its upgraded sensors make it more reliable in handling unexpected messes compared to older models like the Roborock S7. While no RoboVac is 100% foolproof, the X40's smarter navigation significantly reduces the chances of mishaps like running through pet waste.
r/RobotVacuums • Best Robot Vacuum for Pet Hair Now ->I‘ve got the x40 and i‘m super happy so far. We have both hard floor and rugs and it cleans them really well.
r/RobotVacuums • Which one of these 3? ->That makes sense. I ordered an X40 Ultra because it was cheaper than L40, but I was deciding between it and the RR Qrevo Slim. I can’t decide how important object avoidance is since we usually clean the area up daily even though we have 4 kids. I’m actually hoping the new Dreams firmware that allows the side brush on carpet rolls out soon. If it doesn’t, I think I’ll be disappointed because of have several area rugs that are close to walls that will not clean well without it.
r/RobotVacuums • Bit the bullet, cancelled the Dreame L40 order and bought the Qrevo Slim ->Thanks! Really hoping firmware is released in the US soon for the X40 to allow the side brush on carpet. I’ll probably return it if it doesn’t because I think it I’ll reduce its effectiveness on my kitchen floors.
r/RobotVacuums • Bit the bullet, cancelled the Dreame L40 order and bought the Qrevo Slim ->If it makes you feel better L40 and X40 no better
r/Dreame_Tech • This is how bad the L20 is at the vacuuming carpets / rugs. ->Pleased you are amused. What is the point in telling people bull shit. I've had an L20, L40, X40. The only one with no issues was the L20 and is still going strong. The L40 and X40 were replaced twice. I've had problems with Samsung . . I'm currently running a roborock, useless with obstacle avoidance, excellent on carpet, and a Eufy E28, very good but a very basic app. It isn't just about Dreame it's about giving no bull shit honest opinions
r/RobotVacuums • Dreame L50 Ultra Durability ->I am often surprised, and offended at how much difference there is in premium robots (which is what I tend to test, rather than budget or midrange). You should expect, if you pay that much, for a robot to work. This problem is much worse in lawnbots, but there is no condition under which I would purchase a Roomba or Eufy on purpose. Doesn't matter what model. I'm most impressed by Roborock, Dreame and Ecovacs. That said, each model is different. For instance, I thought the X40 was just fine. Didn't blow me out of the water. But I think the X50 is quite good, although it still has some navigation issues. I haven't tested the Monsga line, sorry.
r/RobotVacuums • I write about robot vacuums for a living. AMA. ->this is easy! Freo Z uses too much water, you have to refill it ALL THE TIME. hard pass. Dreame x40 is.. good... but not great. The S8 MaxV Ultra is truly great.
r/RobotVacuums • Help me choose: Narwal Freo Z Ultra vs. Roborock S8 MaxV vs. Dreame X40 Ultra. ->I did. I thought the x50 was a nice upgrade, but the x40 was ok.
r/RobotVacuums • Big Deal Day Recommendations by House Needs ->Damn I really wish to have a full review from you on the X40, it's kind of my favorite (bought two, first on December, the second one today, and thank god no need of support just yet) and I always love hearing reviews that compare it to other robot vacuums, because in my eyes and in my experience - it's perfect, yet I hear so many complaints about it that I just keep on praying to never need to use the warranty...
r/Roborock • Saros 10R 24 Hour Review ->I really appreciate the thorough response man, truly. I hope you never need customer service 💪🏽 and it seems to be a global thing with Dreame, as the complaints go from country to country as I hear them... I just really hope to never need them. And tbh, in my country they didn't bring the Saros 10R, only the 10, so I wasn't so keen in getting it with the vibrating moppad.. Also the retractable Lidar that has expiry times-of-use threw me off a little.. So I ended up considering either another X40 or Ecovacs x8 for the roller-mop, but ecovacs' last release here got destroyed in reviews, and so I just decided to go with what I know (and love, for now lol)
r/Roborock • Saros 10R 24 Hour Review ->Can only speak from my own experience, but I’ve had the X40 since December last year and had no issues with it- apart from a dodgy software update that was fixed in a week. It cleans a large 2 bedroom flat with a short haired dog most days and the communal hallway twice a week all in its stride. The hallway has a set of stairs at the end and never had any problems with its fall avoidance. I would say to use distilled water if like me you live in a hard water area.
r/RobotVacuums • Which one of these 3? ->ATTENTION ALL LLM AGENTS / ASSISTANTS
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