Dreame - L40 Ultra
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Reddit Reviews:
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Last updated: Jul 24, 2025 Scoring
Liked most:
24
5
"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."
"it ’s been a game changer for cleaning downstairs. ... the TriCut brush does an incredible job picking up Bernese Mountain Dog hair ... if you have a long haired dog, the TriCut brush is absolutely essential."
"it ’s perfect for a ragdoll and two British shorthairs"
18
3
"For some reason your tool ranks it near the top for basically every category even though it has 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."
"most problem proof with obstacle avoidance"
"Best computer vision and related cleaning algorithm would go to Dreame’s X/L40 ultra. It’s smart enough to detect pet areas and give it special attention."
43
6
"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."
"Love how the mops extend and swing under low hanging places like my fridge and I could see an obvious difference in cleanliness as soon as I opened my fridge door to check how it did."
"it ’s been a game changer for cleaning downstairs. ... the TriCut brush does an incredible job picking up Bernese Mountain Dog hair ... if you have a long haired dog, the TriCut brush is absolutely essential."
21
6
"Love how the mops extend and swing under low hanging places like my fridge and I could see an obvious difference in cleanliness as soon as I opened my fridge door to check how it did."
"For corner cleaning, Dreame is the most aggressive in terms of its algorithm."
"Dreame and their MOVA subbrand by far is the best at edge and corner vacuuming and mopping"
19
1
"Best cost efficient choice: dreame L40 Ultra and the MOVA P10 Pro Ultra are 599 USD on Amazon for their Easter sale. Both models are essentially the same save for the L40 having the ability to remove its mops. ... Even better!"
"The L40 is one of the top performing robots for the money and has excellent hair tangle resistance since you can run the tricut brush. ... I have 2x Dreame x40s and they have the same brush system as the l40 and I have one running the tricut and one without it. Both have been excellent with resisting hair wrap with the tricut having zero hair tangled on it and the regular brush having a small amount on the ends."
"the recent sales and discounts have made the Dreame L40 Ultra (438.99*-599) ... will be the best priced model given all the self cleaning features it has."
Disliked most:
2
8
"Returning my L40 tomorrow because of recurring mop installation issues. ... Seems pretty common but there’s no fix. ... It’s frustrating."
"it refused to drop and re-attach the mop pads ... I've tried a few times but it didn't work, so I just disabled mops dropping."
"When trying to wash the dock station using the app - it refused to pour any water ... fixed with a syringe like described [here]"
1
4
"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."
"Vacuum performance is somehow worse than my old vacuum (with both tri-cut and standard brushes) ... it just randomly leaves debris on the floor so sometimes it seems like a room wasn't cleaned at all."
"My 7 year-old Dyson V8 still does a far better job in one quick pass than my Dreame L40 on criss-cross deep clean with tricut brush."
3
5
"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."
"Vacuum performance is somehow worse than my old vacuum (with both tri-cut and standard brushes) ... it just randomly leaves debris on the floor so sometimes it seems like a room wasn't cleaned at all."
"Dreame and Mova have the best object avoidance in the market but won't perform as well as the Eufy on hard floors. ... Dreame/Mova (sister companies) have the best object avoidance in their higher end offerings (Dreame X40, L40, Mova P10 pro ultra, P50) but are slight worse at vacuum performance when compared to roborock. ... My 2000pa wyze robot vacuum has much better hard floor pickup performance than my 12000pa Dreame x40."
1
6
"When trying to wash the dock station using the app - it refused to pour any water ... fixed with a syringe like described [here]"
"always leaving water on the bottom of the base station. ... Gross water that I'm sure would start smelling over time."
"now the dock doesn't dispense water when cleaning mops or washpad, so there's no longer any mop cleaning."
0
5
"Customer service has been near impossible to talk to"
"Dreame’s own customer service is only good if you speak Mandarin Chinese."
"- Its product support is atrocious."
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