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Dreame L40 Ultra Gen 2

Color: white
$499$799 Discount as claimed by the store. We have not followed this store for the 30 days before the sale began, so we cannot verify the old price yet.How we work this out

Good deal

This price is lower than the model could usually be bought for anywhere, and lower than on most days of the past month.

12% below the usual lowest price at any store, and cheaper than on at least three in four of the last 30 days.

Dreame 3–7 days no returns
$799$499 Go to Dreame ↗
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Is the Dreame L40 Ultra Gen 2 right for your home? Find out in 7 questions →

About this model

Two labs watched the Dreame L40 Ultra Gen 2 meet clutter and came away with different marks. Vacuum Wars saw it dodge just 2 of 24 objects and marked obstacle avoidance at 0.31 on a five-point scale, where 2.375 is that lab's ordinary result. Just A Dad Approved, three months into home use, settled on 7.3 out of 10, a shade below its regular 7.5, yet reported the robot stuck around chair legs repeatedly. That tester points to the cause: this second generation dropped the camera the first L40 Ultra carried. Socks, cables and toys want lifting before it starts.

Learn more →

Who it suits

Good for

  • Rugs and carpet: lifts the mop 0.4 in (10.5 mm)
  • Mopping: station washes and dries the mop
  • Upkeep: all-in-one station
  • Clutter on the floor: 3D sensor detects obstacles

Not for

  • Low furniture: 3.8 in (9.7 cm) tall

From the facts the maker states, by the rules of our advisor.

Dreame L40 Ultra Gen 2 (white)

Before you buy, compare it with 2 recommended alternatives ?

Green is the best of these 3, also when they share the lead.

This model Dreame L40 Ultra Gen 2 Best on 3 facts Higher score, 6% cheaper Dreame L40s Ultra Best on 7 facts Much better, not pricier MOVA P10 Pro Ultra Best on 4 facts
Most important facts
Lowest price $499Dreame (brand store) $469Dreame (brand store) best $499MOVA (brand store)
Score 7.0 7.4 7.5 best
Customer rating – – –
Tests Just A Dad Approved Vacuum Wars Just A Dad Approved Vacuum Wars Just A Dad Approved Vacuum Wars
Suction power higher is better 25,000 Pa best 19,000 Pa 13,000 Pa
Runtime per charge longer is better 231 min best 220 min 150 min
Climbs thresholds up to higher is better 0.8 in (20 mm) 0.9 in (22 mm) best 0.9 in (22 mm) best
Robot height lower is better same on all 3.8 in (9.7 cm) 3.8 in (9.7 cm) 3.8 in (9.7 cm)
Mop lift on carpet higher is better same on all 0.4 in (10.5 mm) 0.4 in (10.5 mm) 0.4 in (10.5 mm)
Dust bag lasts longer is better up to 100 days best up to 100 days best up to 75 days

Compare all 24 facts →

Prices per store

On November 14, 2026 the lowest price for the Dreame L40 Ultra Gen 2 is $499 at Dreame (brand store), shipping to the United States included. In our ranking it is rank 73 of 94 with an all-in-one station, with a score of 7.0 out of 10.

Shipping included, sales tax added at checkout. We may earn a commission when you buy through our links. How we read and order prices

Also at Amazon, price not shown yet: Amazon.com (black).

Cheapest today
Dreame brand store
$499$799 −38%
Shipping3–7 days
Returnsno returns
Color: white No reviews at this store yet
To Dreame

cannot be checked: Discount as claimed by the store. We have not followed this store for the 30 days before the sale began, so we cannot verify the old price yet. How we work this out

Price historylast 30 dayslast 90 days

Color
Lowest price per day Average $591
Lowest price per day Average $587

Follow price changes via RSS.

Lowest since Oct 7$499
Highest since Oct 7$749
Price drops since Oct 71last: November 9, 2026

What you can expect from the Dreame L40 Ultra Gen 2

Lowest price today · all stores$499
Our score7.0 Rank 73 of 94
Robot height3.8 in

What testers say about the Dreame L40 Ultra Gen 2

Two labs watched the Dreame L40 Ultra Gen 2 meet clutter and came away with different marks. Vacuum Wars saw it dodge just 2 of 24 objects and marked obstacle avoidance at 0.31 on a five-point scale, where 2.375 is that lab's ordinary result. Just A Dad Approved, three months into home use, settled on 7.3 out of 10, a shade below its regular 7.5, yet reported the robot stuck around chair legs repeatedly. That tester points to the cause: this second generation dropped the camera the first L40 Ultra carried. Socks, cables and toys want lifting before it starts.

On a clear floor it does better. Of the sand Vacuum Wars ground into carpet, 90% came back out, more than its average robot recovers, and the side brush swung out far enough to clear corners in the Just A Dad Approved home. Dreame's motor rating is 25,000 Pa beside a midpoint of 19,750 Pa for robots docked at a station that also launders the mop, and one charge lasts 231 minutes, about half an hour past the ordinary 200 minutes.

Mopping split the labs a second time. Vacuum Wars, with dried stains lifting well, went to 3.14 out of 5, past its 2.58 norm. The other tester stopped at 7.2 out of 10 and found the pads wiping more than scrubbing. The station is a tall one at 23.2 inches, with 19.7 inches as the common height, so the gap under a shelf is worth measuring first.

Dreame L40 Ultra Gen 2 specifications ?

Product on the market since January 2026

Climbs thresholds up to0.8 in
Mop lift on carpet0.4 in
Runtime per charge231 min
Suction power25,000 Pa

Consumables: a 3.2 l dust bag in the station, which lasts up to 100 days.

Dimensionsrobot and dock

Dock, from the front 23.2 in high 13.4 in deep 23.2 in 18 in wide Robot, from the side 13.8 in across 3.8 in

From the published dimensions. The robot passes under furniture with 3.9 in of clearance or more. The dock needs a spot 18 in wide and 13.4 in deep.

Suction and brushes 5 facts
Suction power
25,000 Pa
Anti-tangle brush
no (assumed)
Main brush
rubber
Extending side brush
yes
Carpet detection
detects carpet and boosts suction
Mopping 5 facts
Mop type
spinning pads
Mop lift on carpet
0.4 in (10.5 mm)
Mop extends to the edges
yes
Automatic mop detach
no
Mop refreshed while mopping
yes
Dock 12 facts
Empties the dust bin
yes
Bagless
no
Dust bag capacity
3.2 l
Dust bag lasts
up to 100 days
Washes the mop
yes
Dries the mop
yes
Hot-air drying
yes
Dispenses detergent
yes
Plumbing hookup
no
Clean water tank
4.5 l
Dirty water tank
4 l
Dock size (w × d × h)
18 × 13.4 × 23.2 in (45.7 × 34 × 59 cm)
Navigation and obstacles 5 facts
Navigation
LiDAR turret
Obstacle avoidance
3D sensor (structured light)
Climbs thresholds up to
0.8 in (20 mm)
Climbing system for high thresholds
no (assumed)
Stair-edge sensors
yes
Robot 4 facts
Robot height
3.8 in (9.7 cm)
Robot diameter
13.8 in (35 cm)
Robot weight
8.8 lb (4.01 kg)
Dust bin in the robot
250 ml
Battery 3 facts
Battery capacity
5,200 mAh
Runtime per charge
231 min
Charging time
3.5 h
Smart features and warranty 4 facts
Matter
yes
Voice assistants
Alexa, Google Assistant, Siri
Warranty
3 years
Scheduled runs
yes

Where a row says “no (assumed)”, the maker's full product page for this model names the feature nowhere, so we take it as a no.

Sources: dreametech.com · Manual

Our score

Confidence: high. Two or more test sites, or one test site and 300 or more owners’ ratings. The highest score today is 7.9.

  • Test sites 60%6.7

    5 cleaning abilities measured, on one scale for every robot.

    • Deep clean on carpet7.6
    • Pet hair6.9
    • Mopping6.7
    • Obstacle avoidance4.5
    • Navigation6.6

    Pet hair: Just A Dad Approved 7.2 · Vacuum Wars 6.6. Mopping: Just A Dad Approved 6.3 · Vacuum Wars 7.1. Obstacle avoidance: Just A Dad Approved 6.1 · Vacuum Wars 2.9 · the test sites disagree here.

    Measured by Just A Dad Approved (read on September 16, 2026) · Vacuum Wars (read on September 29, 2026).

    Measured 6.6, counted 6.7, pulled toward its station type’s average.

  • Owners’ ratings 25%–

    Owners’ ratings, 25%: none yet at the stores that ship to the United States, so this part is left out and the others count for more.

  • Features 15%8.1

    70 of 86 points for the facts the maker states.

  • Price never countsA sale can’t lift a model. Today’s lowest price sits beside the score, checked every morning.
  • No test, no rankOnly robots a test site has tested are ranked. The rest get a provisional score.
  • Reviewers beside, not insideReviewers’ picks are shown next to the score and do not count in it.

How we work this out →

The testers’ picks

Positions and labels, never text. These picks are shown beside the score and do not count in it. How the score comes about is on the method page.

Frequently asked questions about the Dreame L40 Ultra Gen 2

What has the Dreame L40 Ultra Gen 2 cost?

Since we began measuring on October 7, 2026, its lowest price was $499 (November 9, 2026, at Dreame (brand store)) and its highest $749 (November 3, 2026). On average it cost $586.

Does the Dreame L40 Ultra Gen 2 wash and dry its own mop?

Yes. Drying is done with warm air.

Does the Dreame L40 Ultra Gen 2 work with Alexa, Google Home or Siri?

It works with Alexa, Google Assistant and Siri. It also supports Matter, so it fits into another brand’s app.

How long does the Dreame L40 Ultra Gen 2 run on one charge?

231 minutes on its quietest setting. A full charge takes 3.5 hours.

The maker

Dreame

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.

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