Dreame L40 Ultra
No shop we follow delivers this model to Germany. This page says what it can do, and which similar robots you can buy here.
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Before you buy, compare it with 2 recommended alternatives
No shop here sells this model today, so beside it the highest-scored model with the same kind of station that one does, and the cheapest of the top 10.
Green is the best of these 3, also when they share the lead.
| This model Dreame L40 Ultra Best on 2 facts | Cheapest of the top 10 Ecovacs Deebot T90 Pro Omni Best on 4 facts | Highest score here Narwal Freo 20 Best on 4 facts | |
|---|---|---|---|
| Price and ranking | |||
| Lowest price | – | 345 €Amazon.de best | 999 €Amazon.de |
| Score | not in our ranking | best | |
| Rank | – | rank 7 of 37 with an all-in-one station | rank 1 of 37 with an all-in-one station |
| Customer rating | – | ★ 4.2 · 977 reviews | ★ 4.8 · 97 reviews best |
| Mopping | |||
| Mop type | spinning pads | roller mop | roller mop |
| Mop lift on carpet higher is better | 10.5 mm | 15 mm best | 10 mm |
| Automatic mop detach | yes (best) | no | no |
| Washes the mop same on all | yes | yes | yes |
| Hot-air drying same on all | yes | yes | yes |
| Station | |||
| Station same on all | all-in-one station | all-in-one station | all-in-one station |
| Dust bag lasts longer is better | up to 75 days | up to 150 days best | up to 120 days |
| Plumbing hookup | yes (best) | no | – |
| Brush and obstacles | |||
| Anti-tangle brush same on all | yes | yes | yes |
| Obstacle avoidance same on all | AI camera | AI camera | AI camera |
| Climbs thresholds up to higher is better | 22 mm | 24 mm | 40 mm best |
| Climbing system for high thresholds same on all | no | no | no |
| Size, noise and age | |||
| Robot height lower is better | 10.4 cm | 9.5 cm best | 9.5 cm best |
| Noise not judged | – | 60 dB | – |
| On the market since | November 2024 | March 2026 | June 2026 |
Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.
What the tests like and dislike about the Dreame L40 Ultra
Pros
- Handles pet and human hair very well, helped by its hair-cutting brush TechRadar ↗
- Side brush and one mop swing outward to reach right into corners TechRadar ↗
- Maps rooms quickly and accurately, and rides over loose rugs without snagging TechRadar ↗
- Clears debris from hard floors and carpet and cleans deep into carpet Vacuum Wars ↗
- Very frugal battery, among the best they have seen for runtime per charge Vacuum Wars ↗
- Mops dried stains well and can leave its pads in the dock for carpet runs Vacuum Wars ↗
Cons
- The dock is very large and rather ugly TechRadar ↗
- May push or ride over small soft items like gloves and toys TechRadar ↗
- The app does not save a cleaning zone for later use TechRadar ↗
- The standard brush tangles badly with long hair, the optional cutting brush fixes that Vacuum Wars ↗
- The station squeaked a lot while washing the mop pads Vacuum Wars ↗
- Kept missing a longer pile rug on the test floor Vacuum Wars ↗
Where the testers disagree
- Pet hair: TechRadar: Handles pet and human hair very well, helped by its hair-cutting brush against Vacuum Wars: The standard brush tangles badly with long hair, the optional cutting brush fixes that
- Navigation: TechRadar: Maps rooms quickly and accurately, and rides over loose rugs without snagging against Vacuum Wars: Kept missing a longer pile rug on the test floor
Each point sums up, in our words, the review of the test it names, and its link leads to that review. We do not summarise RTINGS or Wirecutter: their lists are linked above.
Dreame L40 Ultra specifications
The numbers that matter first, then every fact by group. As published by the maker or the shop we read it from.
Dreame · on the market since November 2024
Consumables: a 3.2 l dust bag in the station, which lasts up to 75 days.
Dimensionsrobot and dock
From the published dimensions. The robot passes under furniture with 11 cm of clearance or more.
Suction and brushes 5 facts
- Suction power
Suction in pascal, as the maker measures it. More pascal helps on carpet, but it says little about how well the robot picks grit off a hard floor.
- 11,000 Pa
- Anti-tangle brush
A brush that guides hair to the side instead of letting it wind around the shaft. It saves the cutting work in homes with long hair or pets. On this model: from the maker's product text, not from a specification table.
- yes
- Extending side brush
The side brush swings out in a corner or along a kickboard, so the dust there is swept in too.
- yes
- Suitable for pet hair
Whether the robot copes with pet hair: a brush that hair does not wind around and a dock that empties the bin for you. Where the maker does not say so itself, we read it from those two.
- yes
- Dirt detection
A sensor notices where more dirt lies, at the doormat for example, and the robot cleans that patch longer or a second time.
- yes
Mopping 5 facts
- Mop type
How the mop is built: flat pads, two spinning discs or a roller. Discs press harder on dried-on dirt, a roller rinses itself while it works.
- spinning pads
- Mop lift on carpet
How far the robot lifts the mop when it drives onto a carpet. From about 10 mm a medium pile stays dry.
- 10.5 mm
- Mop extends to the edges
The pad slides out along a wall or a kickboard, so the last few centimetres are mopped as well.
- yes
- Automatic mop detach
The robot leaves the mop at the dock before it vacuums a carpet, so the carpet never gets wet.
- yes
- Mop refreshed while mopping
The robot returns to the dock during a run to rinse the mop, instead of pushing dirty water around.
- no
Dock 13 facts
- Empties the dust bin
The dock empties the robot’s dust bin, usually after every run. You only empty the dock’s bag or bin. On this model: the bag sits in the station.
- yes
- Bagless
The dock collects dust in a bin instead of a disposable bag. No bags to buy, but you empty it yourself.
- no
- Dust bag capacity
How much the dust bag in the dock holds.
- 3.2 l
- Dust bag lasts
How long the maker says a dust bag lasts with daily use. With pets or a lot of carpet it is shorter. On this model: from the maker's product text, not from a specification table.
- up to 75 days
- Washes the mop
The dock washes the mop for you, so you do not rinse it by hand. On this model: from the maker's product text, not from a specification table.
- yes
- Wash temperature
How hot the dock washes the mop. Above 60 °C grease comes off, which is what keeps a mop from smelling. On this model: from the maker's product text, not from a specification table.
- 65 °C
- Dries the mop
The dock dries the mop afterwards, so it does not sit there wet and start to smell. On this model: from the maker's product text, not from a specification table.
- yes
- Hot-air drying
Drying is done with warm air instead of cold. It is faster and it helps against smell. On this model: from the maker's product text, not from a specification table.
- yes
- Dispenses detergent
The dock mixes detergent into the water itself, from its own bottle. On this model: from the maker's product text, not from a specification table.
- yes
- Plumbing hookup
The dock can be connected to the tap and the drain, so you never fill or empty a tank. It does need a connection nearby. On this model: from the maker's product text, not from a specification table.
- yes
- Clean water tank
The clean water tank in the dock, which wets the mop.
- 4.5 l
- Dirty water tank
The tank that catches the dirty water from the mop. You empty this one yourself.
- 4 l
- Dock width
The width of the dock.
- 34 cm
Navigation and obstacles 6 facts
- Navigation
How the robot maps your home and follows that map. Lidar measures with a laser and works in the dark, a camera looks along and recognises more.
- LiDAR turret
- Obstacle avoidance
How the robot sees loose things on the floor, such as cables, socks or a pet accident. A camera with depth sensing sees more than a bumper that reacts on contact. On this model: from the maker's product text, not from a specification table.
- AI camera
- Climbs thresholds up to
The highest threshold the robot takes, as the maker states it. Measure your own: the step into a bathroom or onto a balcony is often higher.
- 22 mm
- Climbing system for high thresholds
An extending leg or wheel that carries the robot over a high threshold. Without one it usually stops at about 2 cm. On this model: the maker names this feature nowhere on the product page, so we take it as no.
- no
- No-go zones
How you keep the robot out of a place: a zone you draw in the app, a virtual wall or a magnetic strip on the floor.
- zones in the app, virtual walls
- Camera on board
Whether the robot has a camera, and what for: to recognise obstacles, or also to show you a live picture of your home in the app.
- obstacle camera
Robot 3 facts
- Robot height
How tall the robot is. It decides whether it fits under your sofa, bed or cabinet.
- 10.4 cm
- Robot diameter
How wide the robot is. Narrower gets between chair legs more easily, wider usually means a bigger dust bin.
- 35 cm
- Dust bin in the robot
How much dust the robot holds before you empty it. It matters less with an auto-empty dock, which empties the bin after every run.
- 300 ml
Battery 2 facts
- Battery capacity
The capacity of the battery. It hints at the runtime, but how much the robot draws counts just as much.
- 5,200 mAh
- Runtime per charge
How long the robot cleans on one charge, at its quietest setting. After that it recharges and carries on where it stopped. On this model: from the maker's product text, not from a specification table.
- 194 min
Smart features and warranty 3 facts
- Matter
Matter is the standard that lets devices from different makers work together. With it you can run the robot outside the maker’s own app. On this model: the maker names this feature nowhere on the product page, so we take it as no.
- no
- Voice assistants
Which voice assistants the robot works with, such as Google Assistant or Alexa. On this model: from the maker's product text, not from a specification table.
- Alexa, Google Assistant, Siri
- Warranty
The warranty the maker gives in Germany. Consumer law here stands apart from it and can last longer.
- 2 years
Sources: nl.dreametech.com · Manual
Frequently asked questions about the Dreame L40 Ultra
Does the Dreame L40 Ultra empty its own dust bin?
Yes. The station empties the robot’s dust bin after every run. The 3.2 l dust bag in the station lasts up to 75 days, the maker says.
Does the Dreame L40 Ultra wash and dry its own mop?
Yes. The station washes the mop itself, with water at 65 °C. It then dries the mop with warm air.
Does the Dreame L40 Ultra work with Alexa, Google Home or Siri?
It works with Alexa, Google Assistant and Siri. It does not support Matter.
How high a threshold can the Dreame L40 Ultra climb?
Thresholds up to 22 mm, the maker says. It has no climbing system for higher thresholds. Measure your own thresholds: the ones to a bathroom or balcony are often higher.
Does the Dreame L40 Ultra fit under low furniture?
The robot is 10.4 cm tall, so it fits under furniture with at least 11 cm of clearance.
Is the Dreame L40 Ultra suitable for pet hair?
Yes, the maker says. The brush guides hair to the side instead of winding it round the roller.