Dreame L40s Pro Ultra
No store we follow ships this model to the United States. This page says what it can do, and which similar robots you can buy here.
Who it suits
Good for
- Rugs and carpet: lifts the mop 0.4 in (10.5 mm)
- Pets: anti-tangle brush
- Mopping: station washes and dries the mop
- Upkeep: all-in-one station
- Water hookup: dock connects to the water supply
- Clutter on the floor: AI camera recognizes obstacles
Not for
- Low furniture: 4.1 in (10.4 cm) tall
From the facts the maker states, by the rules of our advisor.
Before you buy, compare it with 2 recommended alternatives
No store 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 L40s Pro Ultra Best on 4 facts | Cheapest of the top 10 MOVA S70 Roller Best on 2 facts | Highest score here Roborock Qrevo Edge 3 Pro Best on 9 facts | |
|---|---|---|---|
| Most important facts | |||
| The lowest price today at a store that ships to you, shipping included. A price with an asterisk comes from a store abroad, and its shipping cost is our own estimate. Lowest price | – | $589MOVA (brand store) best | $999Roborock (brand store) |
| Our own score out of 10: 60% test-site results, 25% store ratings and 15% the maker’s facts. Price does not count. Score | not in our ranking | best | |
| The average of the stars buyers give at the stores, with the number of reviews behind it. We only compare it from 20 reviews. Customer rating | – | ★ 4.6 · 46 reviews | – |
| The test sites that have tested this model, each linked to its own review. Tests | – | Just A Dad Approved | Just A Dad Approved Vacuum Wars |
| 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. In this comparisonWhen it matters
When it matters less
Source
| 19,000 Pa | 28,000 Pa | 36,000 Pa best |
| How long the robot cleans on one charge, at its quietest setting. After that it recharges and carries on where it stopped. In this comparisonWhen it matters
When it matters less
Source
| 195 min | 220 min | 256 min best |
| 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. In this comparisonWhen it matters
When it matters less
Source
| 0.9 in (22 mm) | 0.9 in (22 mm) | 1.8 in (45 mm) best |
| How tall the robot is. It decides whether it fits under your sofa, bed or cabinet. In this comparisonWhen it matters
When it matters less
Source
| 4.1 in (10.4 cm) | 3.5 in (9 cm) | 3.1 in (8 cm) best |
| How far the robot lifts the mop when it drives onto a carpet. From about 0.4 in (10 mm) a medium pile stays dry. In this comparisonWhen it matters
When it matters less
Source
| 0.4 in (10.5 mm) | 0.5 in (12 mm) | 0.6 in (15 mm) best |
| How long the maker says a dust bag lasts with daily use. With pets or a lot of carpet it is shorter. In this comparisonWhen it matters
When it matters less
Source
| up to 100 days best | up to 100 days best | up to 65 days |
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.
Dreame L40s Pro Ultra specifications
The numbers that matter first, then every fact by group. As published by the maker or the store we read it from.
Dreame · on the market since February 2025
Consumables: a 3.2 l dust bag in the station, which lasts up to 100 days.
Dimensionsrobot and dock
From the published dimensions. The robot passes under furniture with 4.1 in of clearance or more. The dock needs a spot 13.4 in wide and 18 in deep.
Suction and brushes 6 facts
- Suction power
Among the models we track
19,000 Pa on this model
Lowest
450 Pa Highest
42,000 Pa Middle
6,000 PaHigher than 821 of the 998 models we track.
When it matters
- Deep-pile carpet and rugs, where dust sinks in.
- Pet hair, sand and crumbs trodden into fibers.
When it matters less
- On hard floors the gain from a higher figure is small: the dust lies on top.
Source: nl.dreametech.com · checked on Sep 20
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.
- 19,000 Pa
- Anti-tangle brush
531 of the 559 models we track have this.
When it matters
- Long hair and pet hair, which wrap around a bristle brush.
- Homes where you would rather not cut hair off the brush.
When it matters less
- Short hair and few pets hardly tangle anyway.
Source: nl.dreametech.com · checked on Sep 25
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.
- yes
- Main brush
Source: nl.dreametech.com · checked on Nov 1
What the roller under the robot is made of. Long hair and pet hair slide off rubber rather than wind round it, bristles reach deeper into carpet, and two rubber rollers turning against each other do both.
- rubber and bristle
- Extending side brush
When it matters
- Corners and edges along baseboards, where a round robot leaves a strip of dust.
- Rooms with many walls and furniture edges.
When it matters less
- In open rooms with few corners it adds little.
Source: nl.dreametech.com · checked on Sep 20
The side brush swings out in a corner or along a baseboard, so the dust there is swept in too.
- yes
- Suitable for pet hair
When it matters
- Dogs and cats that shed.
- Long-haired pets, whose hair wraps around a brush.
When it matters less
- Without pets, ordinary hair and dust need nothing special.
Source: derived, no source of its own · checked on Oct 2
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
When it matters
- Entrances and kitchens, where dirt gathers in one place.
- Pets that leave hair in a favorite spot.
When it matters less
- If dirt is spread evenly, a normal pass cleans it just as well.
Source: nl.dreametech.com · checked on Oct 2
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
When it matters
- Homes with a lot of hard floor that you want mopped, not just wiped.
- Dried-on dirt in a kitchen, which spinning pads or a roller scrub off better than a dragged cloth.
When it matters less
- If you only vacuum, the mop’s build decides nothing.
Source: nl.dreametech.com · checked on Sep 20
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. On this model: from the maker's product text, not from a specification table.
- spinning pads
- Mop lift on carpet
Among the models we track
0.4 in (10.5 mm) on this model
Lowest
0.2 in (5 mm) Highest
1.2 in (30 mm) Middle
0.4 in (10.5 mm)Higher than 145 of the 295 models we track.
When it matters
- Homes with rugs and hard floors side by side.
- Mopping without the robot leaving the rugs damp.
When it matters less
- Without rugs the mop never has to lift.
Source: nl.dreametech.com · checked on Sep 25
How far the robot lifts the mop when it drives onto a carpet. From about 0.4 in (10 mm) a medium pile stays dry.
- 0.4 in (10.5 mm)
- Mop extends to the edges
When it matters
- Kitchens and hallways where dirt gathers along the baseboard.
- Homes with many corners and table legs.
When it matters less
- In open rooms the strip it leaves along the wall is small.
Source: nl.dreametech.com · checked on Sep 20
The pad slides out along a wall or a baseboard, so the last few inches are mopped as well.
- yes
- Automatic mop detach
57 of the 115 models we track have this.
When it matters
- Homes with carpets or rugs that should stay dry.
- High-pile rugs that no mop lift clears.
When it matters less
- Without carpets the mop can stay on.
Source: nl.dreametech.com · checked on Sep 20
The robot leaves the mop at the dock before it vacuums a carpet, so the carpet never gets wet.
- yes
- Mop refreshed while mopping
When it matters
- Large hard floors, where a mop that is never rinsed spreads dirt around.
- Kitchens with sticky spills.
When it matters less
- In a small home the mop does not get dirty enough in one run for it to matter.
Source: nl.dreametech.com · checked on Sep 21
The robot returns to the dock during a run to rinse the mop, instead of pushing dirty water around. On this model: Assumed, not a stated fact: the maker's full specification does not name it, so we take it as no.
- no (assumed)
Dock 13 facts
- Empties the dust bin
When it matters
- Pets, sand or a large home, which fill the bin every run.
- Dust allergy, since you rarely touch the dust yourself.
When it matters less
- In a small home with little dust, emptying the bin by hand takes a moment.
Source: nl.dreametech.com · checked on Sep 20
The dock empties the robot’s dust bin, usually after every run. You only empty the dock’s bag or bin.
- yes
- Bagless
When it matters
- Not wanting to buy bags again and again.
- Pets, whose hair fills a bag quickly.
When it matters less
- With a dust allergy a sealed bag keeps the dust in when you throw it away, so bagless is no gain.
Source: nl.dreametech.com · checked on Sep 25
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
Source: nl.dreametech.com · checked on Sep 20
How much the dust bag in the dock holds. On this model: from the maker's product text, not from a specification table.
- 3.2 l
- Dust bag lasts
Among the models we track
up to 100 days on this model
Lowest
up to 30 days Highest
up to 180 days Middle
up to 70 daysHigher than 435 of the 516 models we track.
When it matters
- Pets or a lot of carpet, which fill a bag faster than the maker’s figure.
- Counting what bags cost in a year.
When it matters less
- With a bagless dock there is no bag to replace.
Source: nl.dreametech.com · checked on Sep 20
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 100 days
- Washes the mop
315 of the 398 models we track have this.
When it matters
- Mopping several times a week, when rinsing pads by hand gets tiresome.
- Kitchens and hallways, where a mop picks up a lot of dirt.
When it matters less
- If you rarely mop, washing the pads by hand is little work.
Source: nl.dreametech.com · checked on Sep 20
The dock washes the mop for you, so you do not rinse it by hand.
- yes
- Wash temperature
Among the models we track
167 °F (75 °C) on this model
Lowest
113 °F (45 °C) Highest
212 °F (100 °C) Middle
167 °F (75 °C)Lower than 69 of the 193 models we track.
When it matters
- Kitchens with grease and sticky spills.
- Pets, where a hot wash keeps the mop from smelling.
When it matters less
- For light dust on a living room floor a cold wash will do.
Source: nl.dreametech.com · checked on Sep 20
How hot the dock washes the mop. Above 140 °F (60 °C) grease comes off, which is what keeps a mop from smelling.
- 167 °F (75 °C)
- Dries the mop
When it matters
- Mopping often, since a damp mop in the dock starts to smell.
- Humid rooms, where a mop dries slowly.
When it matters less
- If you take the pads off and wash them yourself, you will not miss it.
Source: nl.dreametech.com · checked on Sep 20
The dock dries the mop afterwards, so it does not sit there wet and start to smell.
- yes
- Hot-air drying
261 of the 336 models we track have this.
When it matters
- Mopping daily, when the mop barely dries before the next run.
- A smell from the dock in a warm or humid home.
When it matters less
- If you mop only now and then, cold air dries the mop in time.
Source: nl.dreametech.com · checked on Sep 20
Drying is done with warm air instead of cold. It is faster and it helps against smell.
- yes
- Dispenses detergent
When it matters
- Kitchens and greasy floors, where water alone leaves a film.
- Not wanting to add cleaner by hand each time.
When it matters less
- Some floors, such as oiled wood, are best mopped with water only, so there it adds nothing.
Source: nl.dreametech.com · checked on Sep 20
The dock mixes detergent into the water itself, from its own bottle.
- yes
- Plumbing hookup
63 of the 157 models we track have this.
When it matters
- Mopping every day, without filling and emptying tanks.
- A spot near a tap and a drain, such as a utility room or under a kitchen counter.
When it matters less
- If the dock stands far from any plumbing, it is no use.
Source: nl.dreametech.com · checked on Sep 20
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.
- yes
- Clean water tank
When it matters
- Large hard floors mopped every day.
- Being away for days while the robot keeps mopping.
When it matters less
- With a dock connected to the tap the tank is filled for you.
Source: nl.dreametech.com · checked on Sep 20
The clean water tank in the dock, which wets the mop.
- 4.5 l
- Dirty water tank
When it matters
- Mopping every day across a large hard floor.
- Kitchens, where the water gets dirty fast and smells if it stands.
When it matters less
- With a dock connected to the drain you never empty it.
Source: nl.dreametech.com · checked on Sep 20
The tank that catches the dirty water from the mop. You empty this one yourself.
- 4 l
- Dock size (w × d × h)
When it matters
- A small hallway or a niche where the dock has to fit.
- Placing the dock under a cabinet or a counter.
When it matters less
- Along an open wall with room to spare it decides little.
Source: nl.dreametech.com · checked on Sep 20
The width, depth and height of the dock. Measure the spot you have in mind, and leave room for the lid and for the robot driving in.
- 13.4 × 18 × 23.3 in (34 × 45.7 × 59.1 cm)
Navigation and obstacles 5 facts
- Navigation
When it matters
- Several rooms, where a map lets you send the robot to one of them.
- Cleaning in the dark, which lidar does and a camera alone does not.
When it matters less
- In one open room even simple navigation covers the floor.
Source: Manual · checked on Sep 25
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 recognizes more.
- LiDAR turret
- Obstacle avoidance
When it matters
- Cables, socks and toys left on the floor.
- Pets, whose accidents a robot should steer around.
When it matters less
- In a home that is tidied before each run it matters less.
Source: nl.dreametech.com · checked on Sep 20
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.
- AI camera
- Climbs thresholds up to
Among the models we track
0.9 in (22 mm) on this model
Lowest
0.1 in (3 mm) Highest
2.4 in (60 mm) Middle
0.8 in (20 mm)Higher than 834 of the 977 models we track.
When it matters
- Door sills and raised strips between rooms.
- Thick rugs whose edge the robot has to climb.
When it matters less
- In a flat home with no sills it decides nothing.
Source: nl.dreametech.com · checked on Sep 25
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.
- 0.9 in (22 mm)
- Climbing system for high thresholds
When it matters
- Door sills higher than most robots can take.
- Thick rugs and raised doorsteps between rooms.
When it matters less
- In a home without sills it decides nothing.
Source: nl.dreametech.com · checked on Sep 20
An extending leg or wheel that carries the robot over a high threshold. Without one it usually stops at about 0.8 in (2 cm). On this model: Assumed, not a stated fact: the maker's full specification does not name it, so we take it as no.
- no (assumed)
- Camera on board
When it matters
- Privacy, if you would rather not have a camera driving through your home.
- Small things on the floor, which a camera sees better than lidar alone.
When it matters less
- If the floor is tidied before each run, a camera adds little.
Source: derived, no source of its own · checked on Oct 2
Whether the robot has a camera, and what for: to recognize obstacles, or also to show you a live picture of your home in the app.
- obstacle camera
Robot 5 facts
- Robot height
Among the models we track
4.1 in (10.4 cm) on this model
Lowest
2.2 in (5.6 cm) Highest
14.2 in (36.1 cm) Middle
3.7 in (9.5 cm)Higher than 942 of the 1075 models we track.
When it matters
- Sofas, beds and cabinets with little room underneath.
- Dust that gathers under furniture you never move.
When it matters less
- With furniture on high legs or flat on the floor it decides nothing.
Source: nl.dreametech.com · checked on Sep 20
How tall the robot is. It decides whether it fits under your sofa, bed or cabinet.
- 4.1 in (10.4 cm)
- Robot diameter
When it matters
- Dining chairs and tables with legs close together.
- Narrow gaps between furniture and walls.
When it matters less
- In a room with little furniture the robot’s width decides little.
Source: nl.dreametech.com · checked on Sep 20
How wide the robot is. Narrower gets between chair legs more easily, wider usually means a bigger dust bin.
- 13.8 in (35 cm)
- Robot weight
When it matters
- Carrying the robot up and down the stairs to clean another floor.
- A home on several floors with one robot for all of them.
When it matters less
- If it stays on one floor, its weight does not matter.
Source: nl.dreametech.com · checked on Sep 20
What the robot weighs. It counts most if you carry it up a staircase every day.
- 9.3 lb (4.23 kg)
- Dust bin in the robot
When it matters
- A robot without a self-emptying dock, which you empty by hand.
- Pets and long hair, which fill a small bin within one run.
When it matters less
- With a self-emptying dock the bin is emptied after every run, so its size hardly matters.
Source: nl.dreametech.com · checked on Sep 20
How much dust the robot holds before you empty it. It matters less with a self-emptying dock, which empties the bin after every run.
- 310 ml
- Noise while cleaning
Among the models we track
74 dB on this model
Lowest
20 dB Highest
80 dB Middle
65 dBHigher than 629 of the 684 models we track.
When it matters
- Cleaning while you work, sleep or watch TV at home.
- Open-plan living spaces where sound carries.
When it matters less
- When it runs while nobody is home the figure hardly matters.
Source: bol.com · checked on Oct 30
The noise in decibels while cleaning, in the setting its source names: makers mostly give the standard setting, stores often the highest. 65 dB is like a vacuum at half power, 55 dB like a conversation. Emptying by the dock is louder and listed on its own.
- 74 dB
Battery 2 facts
- Battery capacity
Source: nl.dreametech.com · checked on Sep 20
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
Among the models we track
195 min on this model
Lowest
40 min Highest
360 min Middle
150 minHigher than 803 of the 1105 models we track.
When it matters
- Large homes or several floors cleaned in one go.
- Carpet, where the robot uses more power.
When it matters less
- In a small home most robots finish well before the battery runs low.
Source: nl.dreametech.com · checked on Sep 25
How long the robot cleans on one charge, at its quietest setting. After that it recharges and carries on where it stopped.
- 195 min
Smart features and warranty 3 facts
- Matter
When it matters
- Running the robot alongside devices from other makers in one app.
- Not wanting to depend on the maker’s own app.
When it matters less
- If the maker’s app is all you use, it adds nothing.
Source: nl.dreametech.com · checked on Sep 20
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: Assumed, not a stated fact: the maker's full specification does not name it, so we take it as no.
- no (assumed)
- Voice assistants
When it matters
- Starting the robot by voice while your hands are full.
- A home already run with Alexa, Google or Siri.
When it matters less
- If you start it from the app or a schedule, you will not miss it.
Source: nl.dreametech.com · checked on Sep 20
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
When it matters
- A robot with a dock full of pumps and moving parts, where more can break.
- An expensive robot you plan to keep for years.
When it matters less
- For a cheap robot you would replace rather than repair, the extra years count for less.
Source: nl.dreametech.com · checked on Sep 21
The warranty the maker gives in the United States.
- 2 years
Sources: nl.dreametech.com · Manual · bol.com
Ratings at the stores
Buyers rate the Dreame L40s Pro Ultra 4.5 out of 5, from 144 reviews at 2 stores (Coolblue NL, Kaufland.nl NL). We read the ratings on November 2, 2026.
4.5 out of 5. 144 reviews from 2 stores in 1 country
By country
- Netherlands, 2 stores 4.5 (4.5 out of 5) · 144 reviews
The bar is the country's share of the reviews.
| Store | Rating | Reviews | Read |
|---|---|---|---|
| Coolblue NL | 4.5 (4.5 out of 5) | 135 | Nov 2 |
| Kaufland.nl NL | 4.9 (4.9 out of 5) | 9 | Oct 30 |
How we combine them. Each store counts once, with its biggest listing of this model, and its rating weighs by its number of reviews.
Not counted: Amazon (its terms do not allow us to show its ratings).
Frequently asked questions about the Dreame L40s Pro Ultra
How do buyers rate the Dreame L40s Pro Ultra?
Buyers rate the Dreame L40s Pro Ultra 4.5 out of 5, from 144 reviews at 2 stores (Coolblue NL and Kaufland.nl NL). We read the ratings on November 2, 2026.
Does the Dreame L40s Pro 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 100 days, the maker says.
Does the Dreame L40s Pro Ultra wash and dry its own mop?
Yes. The station washes the mop itself, with water at 167 °F (75 °C). It then dries the mop with warm air.
Does the Dreame L40s Pro Ultra work with Alexa, Google Home or Siri?
It works with Alexa, Google Assistant and Siri.
How high a threshold can the Dreame L40s Pro Ultra climb?
Thresholds up to 0.9 in (22 mm), the maker says. Measure your own thresholds: the ones to a bathroom or balcony are often higher.
Does the Dreame L40s Pro Ultra fit under low furniture?
The robot is 4.1 in (10.4 cm) tall, so it fits under furniture with at least 4.1 in of clearance.
The maker
Dreame
- Reviews on Trustpilot
- Headquarters: China
- Founded in 2017
Dreame Technology makes robot vacuums and mops, cordless stick vacuums, wet and dry vacuums and hair dryers. Its founder, Yu Hao, started the business in 2015 with work on high-speed digital motors, and its headquarters and factory are in Suzhou, China. At the end of 2017 Dreame joined Xiaomi's ecosystem of partner companies.