L40s Ultra AE

Dreame

L40s Ultra AE

113 positive 2 neutral 33 negative

Based on 148 Reddit mentions

$669.99

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Most discussed features

Sentiment summary across the product areas Reddit users mention most.

Reddit mentions

Original Reddit posts and comments behind this analysis.

Filtered by featureobstacle avoidanceClear feature

should I get a dreame or roborock - ecovacs disapointed me hard

I have a Dreame L40s Pro Ultra. The first 6 months were great. Other than filling/emptying tanks and bags, washing mop pags etc, it just did its thing and cleaned daily. The object avoidance was quite good and it rarely got stuck. But then it stopped being able to mop. I reached out to Dreame AU sup

...

NoSpam0 in r/Dreame_Tech

February 25, 2026 11:46 PM

8

Navigation failure

My L40s Pro Ultra also moves around the legs, a month has passed and nothing has changed, it’s better to change it to a Roborock. https://www.reddit.com/r/Dreame_Tech/comments/1ow4xf3/comment/norbtkz/?context=3

Over_Waltz4145 in r/Dreame_Tech

December 25, 2025 6:26 AM

1

L40sPro Ultra charging problem

What I’d do next (important order): Let it charge to 100% and sit on the dock for 30–60 minutes. Delete the map completely. Start a fresh mapping run only (no cleaning), with doors open and nothing moved mid-run. After mapping, run a normal vacuum clean and watch battery usage over 20–30 minutes. If

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Reasonable-Cheek-214 in r/Dreame_Tech

February 9, 2026 9:05 PM

1

Why is Qrevo Edge impossible to find in Europe?

I like the auto brush lifting and a camera. Would be great if it had also the Auto mop detaching, but I see none of these models have it. Dreame, for example, has all these features in their L40S Pro Ultra, however it buying it leaves a bad aftertaste, because so far I've been very satisfied with Ro

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begomtj in r/Roborock

February 11, 2026 11:48 AM

1

L40s pro ultra going very wide around obstacles and furniture legs

I have the exact same problem than you. Have you find any solution with your L40S pro ultra? My old roborock S7 was really great with furnitures legs but the dreame is terrible, some times, because of this behaviour, he doesn't go bellow some chairs even when he can.

Dkaf91 in r/Dreame_Tech

March 1, 2026 11:14 AM

1

Original L40 Ultra vs L40s Ultra AE

I believe the L40s Ultra AE has a smaller battery and slightly less downward pressure when mopping? What do we know is different, the AE removes the Voice Assistant (ok Dreame) and the obstacle Avoidance may be slightly better. Other than that it looks roughly similar

EastButterscotch5144 in r/Dreame_Tech

April 15, 2026 4:21 AM

1

Top alternatives in Robot Vacuums

#1