Robot vacuums / Compare

Dreame L40s Ultra vs Dreame L50 Ultra

A

Product A: Dreame

L40s Ultra

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B

Product B: Dreame

L50 Ultra

69 of 89 known

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Only differences

ADreame L40s Ultra

BDreame L50 Ultra

General

4 of 7 differ

Series

L Series1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Listed in the L Series menu of the Dreame US store. The L40s family has three models, L40s Ultra, Ultra AE and Ultra CE, with different hardware

L Series1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026The store tags the product as L Series

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

RLL22SE, 010204AA000742, 010204AA0008231Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026US store SKUs 010204AA000742 (White) and 010204AA000823 (Black). RLL22SE is the robot model code from SmartHomeCompared and a reseller copy of the user manual. No maker page states it8Spec databasesmarthomecompared.com/robot-vacuums/dreame-l40s-ultraRead 15 October 2026SmartHomeCompared lists Model RLL22SE and Launch Year 2025

010204AA000887, 010204AA000733, RLL94CE1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026US store SKUs from the variant data: 010204AA000887 (Black) and 010204AA000733 (White). The store also sells L50 Ultra bundles with a 149.99 USD accessory kit, which are not variants. RLL94CE is the radio model of the robot in the EU manual. The Canadian store lists a different Black SKU, 010204AA0007322Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/L50_Ultra_R9493-EN_DE_FR_IT_ES_PL_NL_NO.pdfRead 15 October 2026Specifications page: robot model RLL94CE, base station RCLE0101-2. The CE and AE versions of the L50 Ultra are other models (RLL53SE and RLL51SE) and are not stored here

GTIN / EAN

00850070805063, 008500708050701Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Barcodes 00850070805063 (White) and 00850070805070 (Black) in the US store variant data

00850070805278, 008500708052611Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Store barcodes of the two variants

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

13 August 20252Press releasedreametech.com/blogs/news/dreame-l40s-series-robot-vacuum-launchRead 15 October 2026Article date 2025-08-13

May 20254Press articlegsmonline.pl/artykuly/najnowszy-dreame-l50-ultra-za-3999-zlRead 15 October 2026Article of 2025-05-28 introduces the L50 Ultra in Poland

Status

Available2Press releasedreametech.com/blogs/news/dreame-l40s-series-robot-vacuum-launchRead 15 October 2026Sold at the Dreame US store and Amazon in October 2026

Available1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026On sale on the US store with Add to Cart at 899.99 USD on 2026-10-15

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

$1,399.991Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026US store regular price $1,399.99, sale price $569.99. Excludes tax2Press releasedreametech.com/blogs/news/dreame-l40s-series-robot-vacuum-launchRead 15 October 2026L40s Ultra MSRP $1,399.99. L40s Ultra AE $1,099.99 and CE $899.99

Not available

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

Not available

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

US1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026US store

US, CA, PL1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026US store4Press articlegsmonline.pl/artykuly/najnowszy-dreame-l50-ultra-za-3999-zlRead 15 October 2026Poland launch offer at 3,999 zl against a suggested 4,599 zl5Maker product pageca.dreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Dreame Canada store sells the L50 Ultra in Black and White

ColoursiThe maker's own colour names

White, Black1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Variant options White and Black

Black, White1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Variants Black and White

Suction and brushes

4 of 13 differ

Max suction (claimed)iThe maker's highest suction pressure claim in pascals. Each maker measures it in its own lab, so figures from different brands are not directly comparable. A claim such as "175x more suction" is not converted. A maker can claim another figure in another market, such as Roborock in the US, so it is per variant.

19,000Pa1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 202619,000Pa Vormax suction, in-house lab data

19,500Pa1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Maximum Suction 19,500Pa. Footnote: based on tests in the maker's in-house lab

Suction power (claimed)iThe maker's suction power claim in air watts. Few robot makers publish it. Pascals are a different measure and go in Max suction.

Not available

Not available

Main brushesiNumber of main brush rolls under the robot. One roll split into two halves counts as one, and so do two cones tip to tip on one axis. Two rolls that turn against each other count as two.

21Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026The HyperStream Detangling DuoBrush has two rolls, a bristled rubber brush and a TPU rubber brush. The maker's comparison blog calls them counter-rotating rollers

21Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Features text: TPU Rubber Brush and Bristled Rubber Brush in the HyperStream Detangling DuoBrush, called double brushes. Stored as two rolls

Main brush materialiMaterial of the main brush rolls. Rubber covers rubber blades and fins.

Rubber and bristle1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Rubber brush with bristles plus a TPU all-rubber brush

Rubber and bristle1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Features text: TPU Rubber Brush and Bristled Rubber Brush

Main brush (as published)iThe maker's name for the main brush, such as "DuoDivide Brush".

HyperStream Detangling DuoBrush1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026

HyperStream Detangling DuoBrush1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Main Brush Type HyperStream Detangling DuoBrush

Main brush liftiThe robot can raise its main brush off the floor, for example while it mops.

No1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026The comparison table marks Main Brush Lifting absent for the L40s Ultra and present for the AE and CE. The spec table has no such row. The comparison blog says the mops lift and the brush stays down

Yes1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Brush Lifting yes. Features text: TripleUp Tech lifts the side and main brushes while mopping

Side brushesiSpinning edge brushes. 0 for a robot without one.

11Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026The in-box list has one side brush. The maker's comparison blog says all L40 models use one side brush

11Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026What's in the box: Side Brush (pre-installed) x1

Extending side brushiThe side brush or its arm swings outward to reach corners and wall edges. False only when the maker or a spec table says the feature is absent. Silence is a missing value.

Yes1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Spec table: Side Brush Extending yes

Yes1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Extendable Side Brush yes

Side brush liftiThe robot can raise its side brush off the floor.

Yes1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Spec table: Side Brush Lifting yes

Yes1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Liftable Side Brush yes

Max carpet pile (claimed)iTallest carpet pile the maker says the robot can clean. It is not the threshold height the robot can climb. A carpet height the robot climbs onto or glides over, such as carpet climbing 3 cm, is not a pile height.

Not available

Not available

Robot dustbiniDust capacity of the bin inside the robot. The base station's bag or bin is listed separately.

310mL1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Spec table: Dust Box Capacity 310ml. The comparison table says at least 300ml

395mL1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Dust Box Capacity 395ml6Reviewvacuumwars.com/dreame-l50-ultra-robot-vacuum-reviewRead 15 October 2026Review: a rather large 400 ml dust bin on the robot, which matches the 395 ml in the spec table

FilteriPublished filter type or grade, such as "E11 HEPA". The robot's own filter. A dock filter goes in the source note.

Not available

Not available

Washable filteriThe maker says the filter can be rinsed with water.

Not available

Yes2Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/L50_Ultra_R9493-EN_DE_FR_IT_ES_PL_NL_NO.pdfRead 15 October 2026Routine Maintenance, Dust Box and Filter: rinse the dust box and filter with clean water only, no detergent, and dry them completely before reinstalling

Navigation and obstacles

7 of 8 differ

NavigationiHow the robot maps the home. A turret is a raised laser sensor on top. A retractable turret sinks into the body to pass under furniture. Built-in lidar sits inside the body with no turret. A solid-state 3D ToF sensor without a turret counts as built-in lidar. Camera means visual mapping without lidar. Gyroscope only means the robot has no mapping sensor and cleans in rows with a gyroscope. Random bounce means the robot has no mapping sensor and no gyroscope and turns when it bumps into something.

Lidar turret1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Spec table: Pathfinder Smart Navigation. The comparison table lists navigation LDS, a laser distance sensor. The height of 97 mm includes the turret, as for the other L Series models

Lidar turret1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Navigation LDS, a laser distance sensor. The robot is 97 mm high and the maker's L60 article lists the L50 Ultra with standard LDS, so the turret is fixed

Navigation system (as published)iThe maker's name, such as "VersaLift DToF" or "ClearView Pro LiDAR".

Pathfinder Smart Navigation (LDS)1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026

LDS1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Navigation LDS

Obstacle sensors (as published)iThe maker's description of the front obstacle sensors, such as "AI Camera x2 + LED".

Single-Laser 3D Structured Light (3DAdapt)1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Comparison table: Single-Laser 3D Structured Light. The spec table says 3D Structured Light

Intelligent RGB + 3D Structured Light1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Obstacle Avoidance Intelligent RGB + 3D Structured Light. Features text: built-in LED lights guide the robot in dim rooms

AI object recognitioniA camera and software identify objects such as cables, socks and pet waste and steer around them. A structured light sensor without a camera counts when the maker says it identifies object types, as Narwal does. A bump sensor or infrared sensor alone does not qualify. False only when the maker or a spec table says the feature is absent. Silence is a missing value.

No1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Comparison table: the L40s Ultra has single-laser structured light only, with RGB AI listed for the AE. The maker's comparison blog says it detects obstacles by shape and depth without identifying them

Yes1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Features text: AI action and 3D structured light recognize and avoid up to 180+ types of household objects

Object types recognized (claimed)iNumber of object types the maker says the robot can identify. A figure such as 300+ is stored as 300.

Not available

1801Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Published as 180+ types of objects. Footnote: based on the maker's in-house lab data

Dirt detectioniA sensor or camera finds dirtier spots and the robot cleans them harder or again. False only when the maker or a spec table says the feature is absent. Silence is a missing value.

No1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Comparison table: Dirt Detection and AI Dirt Detection are marked absent for the L40s Ultra

Yes1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Dirt Detection, Mop Rewashing and Floor Remopping yes (Multi-spectrum)

Max threshold (claimed)iHighest single step or door threshold the maker says the robot can climb.

22mm1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 20260.87 in (22 mm) single-layer step with the auxiliary wheels. In-house lab data2Press releasedreametech.com/blogs/news/dreame-l40s-series-robot-vacuum-launchRead 15 October 2026Footnote: for a single-layer step the maximum height is 22mm

42mm1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: 1.65in for a single step. Footnote: highest single vertical step, in-house lab testing. The maker's L60 article gives 42 mm and VW quotes 42 mm. 1.65 in is 41.9 mm6Reviewvacuumwars.com/dreame-l50-ultra-robot-vacuum-reviewRead 15 October 2026Review: Dreame says it can cross single 42 mm (1.65 inch) thresholds. The reviewer did not state a rig result, only a 38 mm sunroom threshold, so no measured threshold is stored

Max two-step threshold (claimed)iHighest total height of a two-step threshold the maker says the robot can climb, such as a stepped sliding door track. Makers set conditions, such as a minimum width of the lower step.

40mm1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 20261.57 in (40 mm) double-layer step where the gap between the two layers is more than 1.18 in (30 mm). In-house lab data2Press releasedreametech.com/blogs/news/dreame-l40s-series-robot-vacuum-launchRead 15 October 202640mm is the height of a double-layer step where the gap between the two layers exceeds 3cm

60mm1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: 2.36in for two steps. Footnote: the gap between the steps should be greater than 1.57 in. The maker's L60 article gives 2.4in (60mm)3Maker product pagedreametech.com/blogs/blog/dreame-l60-series-vs-l50-ultra-robot-vacuum-comparisonRead 15 October 2026Same article: 2.4in (60mm)

Mopping

2 of 8 differ

Mop typeiNone means the robot only vacuums. Spinning pads are round pads that rotate. A roller is a turning cylinder. A track is a belt-shaped mop that rolls over the floor. A vibrating pad moves back and forth. A static pad is dragged.

Spinning pads1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Dual Spinning Mops

Spinning pads1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Features text: two mop pads on holders. The maker's L60 article gives a mop rotation speed of 165 RPM for the L50 Ultra, so the pads rotate

Extending mopiA mop pad or roller moves outward to reach wall edges and under low furniture. False only when the maker or a spec table says the feature is absent. Silence is a missing value.

Yes1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Spec table: Mop Extending yes

Yes1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Mop Extend yes. Features text: the mop reaches corners and under low furniture

Mop lift heightiHow far the robot raises its mop pads alone when it drives onto carpet, as the maker's spec table gives it. A lift with the raised chassis goes in the source note.

10.5mm1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 20260.41 in (10.5 mm), the height between the ground and the lifted pads. Footnote: based on in-house lab data

10.5mm1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Features text: the mop pads lift 0.413 in. Footnote: the robot's height differs by 0.413 in before and after the mop lifts. The maker's review article and Vacuum Wars both say 10.5 mm3Maker product pagedreametech.com/blogs/blog/dreame-l60-series-vs-l50-ultra-robot-vacuum-comparisonRead 15 October 2026Maker review article of 2025-09-01: the mop lifts about 0.41 in / 10.5 mm for short-pile carpet6Reviewvacuumwars.com/dreame-l50-ultra-robot-vacuum-reviewRead 15 October 2026Review: the pads can automatically lift to 10.5 millimeters

Leaves mop at the dockiThe robot drops its mop pads at the base station by itself and picks them up again, so it can vacuum carpet without them.

Yes1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Spec table: Mop Removal yes. Comparison table: Mop Automatic Removal yes. Mops are removed for long-pile carpets

Yes1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Mop Removal yes. Features text: automated mop removal for bedroom carpets, even long-pile rugs3Maker product pagedreametech.com/blogs/blog/dreame-l60-series-vs-l50-ultra-robot-vacuum-comparisonRead 15 October 2026Same article: Carpet Protection Auto-Removing Mops for the L50 Ultra

Mop downforce (claimed)iThe maker's claim for the force that presses the mop onto the floor. A claim in kilograms is converted at 1 kgf = 9.80665 N and rounded to one decimal, so 1 kg is 9.8 N. When the maker also gives a figure in N, that figure is stored. When the maker gives a range, such as 9-11 N, the top of the range is stored.

Not available

8N3Maker product pagedreametech.com/blogs/blog/dreame-l60-series-vs-l50-ultra-robot-vacuum-comparisonRead 15 October 2026Maker article of 2026-09-17, comparison table: Downward Pressure 8N for the L50 Ultra. Maker figure

Mop speed (claimed)iHighest rotation speed of the spinning pads or the mop roller that wipes the floor. The speed of another roller that does not wipe the floor is not stored here.

Not available

165rpm3Maker product pagedreametech.com/blogs/blog/dreame-l60-series-vs-l50-ultra-robot-vacuum-comparisonRead 15 October 2026Same article: Mop Rotation Speed 165RPM for the L50 Ultra

Robot water tankiClean water held in the robot itself. The base station tanks are separate.

Not available

Not available

Water flow levelsiNumber of water flow settings the user can pick for mopping.

Not available

Not available

Base station

1 of 10 differ

Base stationiThe main jobs of the dock sold with this model. Auto-empty means the dock sucks the dust out of the robot. Mop washing means the dock cleans the mop.

Auto-empty and mop washing1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Dock empties the dust box, washes the mop pads and dries them

Auto-empty and mop washing1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Auto Emptying, Auto Mop Cleaning with Hot Water, Hot Air Drying

Base station featuresiExtra dock functions. Hot-air drying dries the mop with warm air. Auto detergent adds cleaning solution by itself. Robot tank refill fills the robot's water tank. Self-cleaning wash tray means the dock cleans its own mop washing tray.

Hot-air drying, Auto detergent, Robot tank refill, Self-cleaning wash tray1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Spec table: Hot Air Drying, Auto Solution Adding, Auto Tank Water Refilling and a self-cleaning washboard (AceClean DryBoard)6Retailer pageamazon.com/dp/B0DYSXC9X9Read 15 October 2026Bullet text: the dock rinses the mop pads with 167°F hot water, dries them and refills solution and water. The Amazon item details give model number RLL77SE, which conflicts with RLL22SE and is not stored

Hot-air drying, Auto detergent, Robot tank refill, Self-cleaning wash tray1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Hot Air Drying, Auto Solution Adding, Auto Tank Water Refilling and a Self-Cleaning Washboard (AceClean DryBoard)

Base station water supplyiWater tanks means clean and dirty water tanks that the user fills and empties. Plumbed means the dock connects to a water inlet and a drain. The third option has tanks and a plumbing kit sold separately.

Water tanks, plumbing kit optional1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Clean and used water tanks. Footnote: a Water Hookup Kit is available for separate purchase and support may vary by region. The maker's review blog says the same

Water tanks1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: clean and used water tanks. No plumbing kit row is listed for this model

Base station dust containeriWhat the dock empties the robot's dust into.

Bag1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Dust bag in the dock, two bags in the box

Bag1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table and features text: a 3.2L dust bag in the base station, dust bags in the box

Base station dust capacityiCapacity of the dust bag or bin in the dock.

3.2L1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 20263.2L dust bag

3.2L1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Features text: 3.2L dust bag within the base station

Days between bag changes (claimed)iThe maker's estimate of how long the dock holds dust before it must be emptied. Makers assume different homes, pets and schedules.

100days1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Up to 100 days. Footnote: based on a calculation derived from environment testing in the maker's lab, conditions not stated

100days1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Features text: up to 100 days of auto-empty. Footnote: based on a calculation from in-house lab environment testing. Conditions not stated

Clean water tankiClean water tank in the base station.

4.5L1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Spec table: Clean/Used Water Tank Capacity 4.5L/4.0L

4.5L1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Clean/Used Water Tank Capacity 4.5L/4.0L

Dirty water tankiDirty water tank in the base station.

4L1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Same row as the clean tank

4L1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Clean/Used Water Tank Capacity 4.5L/4.0L

Mop wash water temperature (claimed)iHighest water temperature the dock uses to wash the mop. The maker's own figure. Makers measure at different points, so values are not comparable between makers. The measuring point is required in the source note. A maker can claim another figure in another market, so it is per variant.

75°C1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Auto Mop Cleaning with Hot Water 167°F, which is 75 C. Footnote: base station water outlet temperature up to 167°F after heating, at about 73.4°F room temperature

75°C1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Auto Mop Cleaning with Hot Water 167 F, which is exactly 75 C. Footnote: at about 73.4 F room temperature, the water outlet temperature after heating is up to 167 F. The maker's L60 article gives 75 C3Maker product pagedreametech.com/blogs/blog/dreame-l60-series-vs-l50-ultra-robot-vacuum-comparisonRead 15 October 2026Same article: Hot Water Mop Wash 167F (75C)

Mop drying air temperature (claimed)iTemperature of the warm air the dock blows over the mop. The maker's own figure. Makers measure at different points, so values are not comparable between makers. The measuring point is required in the source note.

Not available

Not available

Battery and charging

3 of 6 differ

Battery capacityiPublished capacity of the robot's battery pack at the nominal battery voltage. When the maker gives a typical or headline figure and a lower rated figure, the headline figure is stored and the rated one goes in the source note, as for Dreame. A rated figure alone is stored. A count times a capacity, such as 2600 mAh x 2, is not a pack capacity. The total is stored only when the maker or a review states it.

5,200mAh1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Spec table: 5,200mAh. Footnote: based on in-house lab data

6,400mAh1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Battery Capacity 6,400mAh. The EU manual lists a rated capacity of 5.8 Ah for the battery pack, so 6,400 mAh is the maker's headline figure and 5,800 mAh the rated one

Battery voltageiNominal pack voltage, such as 14.4 V.

14.4V5Retailer pageteamplush.by/en/product/dreame-l40s-ultraRead 15 October 2026Reseller copy of the user manual specifications: robot model RLL22SE, rated voltage 14.4 V DC. 5,200 mAh at 14.4 V is 74.9 Wh

14.4V2Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/L50_Ultra_R9493-EN_DE_FR_IT_ES_PL_NL_NO.pdfRead 15 October 2026Specifications page: Rated Voltage 14.4 V. The battery pack is R2416-4S2P, rated capacity 5.8 Ah

Rated poweriRated electrical power of the robot from the spec sheet, label or manual. The base station's power is not included. A charger input rating from the manual, such as 20 V 2.5 A, is not this value.

75W5Retailer pageteamplush.by/en/product/dreame-l40s-ultraRead 15 October 2026Robot rated power 75 W in the same table. The base station model is RCLE0305

75W2Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/L50_Ultra_R9493-EN_DE_FR_IT_ES_PL_NL_NO.pdfRead 15 October 2026Specifications page: Rated Power 75 W for the robot. The base station is rated separately

Max run time (claimed)iLongest run time on one charge that the maker claims. Makers usually state it in the quietest suction mode without mopping. Claims that include charging breaks are not stored.

220min1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Up to 220 minutes. Footnote: tested in vacuuming mode under quiet suction

200min1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Features text: up to 200 minutes in Quiet Mode. Footnote: in-house lab test in vacuuming mode under quiet suction settings

Full charge time (claimed)iThe maker's claim for charging from empty to full. A partial charge, such as 9 to 80%, is not stored.

210min5Retailer pageteamplush.by/en/product/dreame-l40s-ultraRead 15 October 2026Full charge time approximately 3.5 hours, stored as 210 minutes. SmartHomeCompared also lists 3.5 hours. Dreame's review article says roughly 4 hours

270min2Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/L50_Ultra_R9493-EN_DE_FR_IT_ES_PL_NL_NO.pdfRead 15 October 2026Specifications page: Charging Time approx. 4.5 hours, stored as 270 minutes

Recharge and resumeiThe robot returns to the dock to charge and then finishes the job where it stopped.

Yes1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Page text: returns to the dock for recharge and resumes cleaning from where it left off

Yes1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Features text: when the battery runs low the robot returns to the dock to recharge and resumes cleaning where it stopped

Noise

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Noise (claimed)iOne row per noise figure the maker publishes. Suction mode is the maker's mode name, such as "Standard". When the maker gives a range, the top of the range is stored. A row leaves out the activity or the mode when the maker does not name it, such as a figure for quiet mode alone or a bare figure with neither.

ADreame L40s Ultra

Activity	Suction mode	Noise (dB(A))
Vacuuming	Quiet	55
Vacuuming	Turbo	72
Dock emptying	Not available	80

Source3Maker product pagedreametech.com/blogs/blog/dreame-l40s-ultra-reviewRead 15 October 2026Dreame's own review article dated 2025-08-10: Quiet mode roughly 55 dB, Turbo (Max) about 70-72 dB at the robot, dock emptying about 80 dB. The top of the range, 72, is stored. The standard mode is only called the low 60s and is not stored. No weighting or test method is stated

BDreame L50 Ultra

Not available

Connectivity and app

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Wi-Fi standardi802.11n is Wi-Fi 4, 802.11ac is Wi-Fi 5 and 802.11ax is Wi-Fi 6. Use the highest protocol the manual lists. None only when a source says the robot has no Wi-Fi.

Not available

Not available

Wi-Fi bandsiBands the maker's manual or spec table states. Many robots use 2.4 GHz only. Vacuum Wars' Wi-Fi version column is not used for this field.

2.4 GHz5Retailer pageteamplush.by/en/product/dreame-l40s-ultraRead 15 October 2026Operating frequency range 2400-2483.5 MHz and only 2.4 GHz networks are supported

2.4 GHz2Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/L50_Ultra_R9493-EN_DE_FR_IT_ES_PL_NL_NO.pdfRead 15 October 2026Setup page: Only 2.4 GHz Wi-Fi is supported. Troubleshooting: the robot does not support a 5 GHz Wi-Fi connection

Bluetooth versioniAs published, such as "4.1". Robots use Bluetooth for setup.

Not available

Not available

MatteriThe maker states Matter support. Support that is only promised for a later update is not counted.

No8Spec databasesmarthomecompared.com/robot-vacuums/dreame-l40s-ultraRead 15 October 2026The review says this model has no Matter or native Apple Home support

Yes3Maker product pagedreametech.com/blogs/blog/dreame-l60-series-vs-l50-ultra-robot-vacuum-comparisonRead 15 October 2026Same article, App Experience table: Matter Connectivity yes for the L50 Ultra. The US page footnote of 2025 said Matter would arrive in an upcoming OTA update, so the newer article is followed

Voice assistantsiThird-party assistants that can control the robot, such as "Amazon Alexa".

Amazon Alexa, Google Assistant2Press releasedreametech.com/blogs/news/dreame-l40s-series-robot-vacuum-launchRead 15 October 2026Compatible with third-party voice assistants (Alexa, Google Assistant)9Reviewvacuumchef.com/dreame-l40s-ultra-review-powerful-suction-smart-mopping-real-world-performance-testedRead 15 October 2026Alexa and Google Assistant, as in the maker's launch article

Amazon Alexa, Siri, Google Home1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Features text: Alexa, Siri and Google Home. The footnote says a device that integrates voice technology is needed

Built-in voice controliThe robot has its own microphone and responds to spoken commands without a smart speaker.

No1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Spec table: Voice Control Third-Party. Comparison table: Direct Voice Control absent9Reviewvacuumchef.com/dreame-l40s-ultra-review-powerful-suction-smart-mopping-real-world-performance-testedRead 15 October 2026Review notes there is no built-in voice assistant

Not available

Companion appiThe maker's phone app for the robot, by name.

Dreamehome1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Dreamehome App Control section

Dreamehome2Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/L50_Ultra_R9493-EN_DE_FR_IT_ES_PL_NL_NO.pdfRead 15 October 2026Setup page: connect with the Dreamehome app

Saved mapsiNumber of floor maps the robot can store, for homes with several levels.

41Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Navigate and Map section: Fast Mapping (4 Maps)3Maker product pagedreametech.com/blogs/blog/dreame-l40s-ultra-reviewRead 15 October 2026The robot can save up to 4 floor maps

Not available

Live videoiThe app can show the robot's camera view live.

No4Maker product pagedreametech.com/blogs/blog/robot-vacuum-comparison-l40-l40s-ultra-ae-ceRead 15 October 2026Comparison table row Remote Video Viewing: no for the L40s Ultra, which has no camera

Yes1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Features text: real-time video call or two-way voice interaction to watch pets

Measured

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Suction at the brush housing (measured)iSuction pressure a reviewer measured with a manometer at the robot's brush housing on the highest power setting. It is far lower than the maker's figure and is not comparable to it.

Not available

0.47kPa7Measurementvacuumwars.com/compare/robot-vacuums/dreame_l50_ultraRead 15 October 2026Compare page Suction Test 0.47 kPa, measured at the brush housing on the highest power setting. The page was only readable through a search summary

Airflow (measured)iAirflow at the suction inlet on the highest power setting, measured by a reviewer with an anemometer.

Not available

17CFM7Measurementvacuumwars.com/compare/robot-vacuums/dreame_l50_ultraRead 15 October 2026Compare page Airflow Test 17 CFM

Embedded sand pickup on carpet (measured)iShare of sand worked into medium-pile carpet that the robot removed in a timed run on the highest power setting. The reviewer weighs the robot's bin before and after.

92%7Reviewvacuumwars.com/dreame-l40s-series-reviewRead 15 October 2026Vacuum Wars carpet deep clean test, sand embedded in carpet: L40s Ultra 92 percent, average 75 percent. Review last updated 2026-09-16

90%6Reviewvacuumwars.com/dreame-l50-ultra-robot-vacuum-reviewRead 15 October 2026Carpet deep-clean test, sand embedded in medium-pile carpet: 90 percent, a top-five score, against an average of 77 percent. Review last updated 2026-08-287Measurementvacuumwars.com/compare/robot-vacuums/dreame_l50_ultraRead 15 October 2026Compare page Carpet Deep Clean Test 90, the same as the review

Pet hair pickup on carpet (measured)iShare of a fixed weight of flattened pet hair, about 2.5 inches long, removed from carpet in two runs. The reviewer weighs the hair left behind.

91%7Reviewvacuumwars.com/dreame-l40s-series-reviewRead 15 October 2026Vacuum Wars 2.5-inch flattened pet hair on carpet test: 91 percent

100%6Reviewvacuumwars.com/dreame-l50-ultra-robot-vacuum-reviewRead 15 October 2026Flattened pet hair test on carpet: 100 percent, against an average of 81 percent7Measurementvacuumwars.com/compare/robot-vacuums/dreame_l50_ultraRead 15 October 2026Compare page 2.5 Flattened Pet Hair Pickup Test 100, the same as the review

Max threshold (measured)iHighest single threshold the robot cleared on a reviewer's test rig.

Not available

Not available

Test obstacles avoided (measured)iNumber of the 24 test objects the robot steered around in Vacuum Wars' standard and torture obstacle tests.

77Reviewvacuumwars.com/dreame-l40s-series-reviewRead 15 October 2026Vacuum Wars standard and torture obstacle tests: 7 of a possible 24 objects

206Reviewvacuumwars.com/dreame-l50-ultra-robot-vacuum-reviewRead 15 October 2026Obstacle course: 20 of 24 points, against an average of 16.6

Area per charge (measured)iFloor area the reviewer estimates per charge from measured battery use and a fixed floor plan, on the lowest suction setting without mopping. Vacuum Wars multiplies battery efficiency by navigation efficiency. It is not a full-charge run.

179.77m²7Reviewvacuumwars.com/dreame-l40s-series-reviewRead 15 October 2026Chart: 1,935 sq ft times 0.09290304 = 179.77 m2. Battery efficiency 2.10 min per percent and navigation efficiency 0.85 m2 per min. The page does not repeat the power setting

76.46m²6Reviewvacuumwars.com/dreame-l50-ultra-robot-vacuum-reviewRead 15 October 2026Review text: covered 823 sq ft. 823 x 0.09290304 = 76.46 m2. The navigation efficiency is 0.80 m2 per minute. The review's text and caption disagree on the average, not on this figure

Dimensions and weight

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Robot shapeiShape seen from above. D-shaped means a flat front and a round back.

Round1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Spec table lists 13.78 x 13.78 in. Round body in the maker photos

Round1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: 348 x 352 mm footprint and round product photos

Robot widthiWidth of the robot from side to side.

350mm1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Spec table: 13.78 x 13.78 x 3.82 in, which is 350 x 350 x 97 mm. The page says dimensions may vary by up to 0.08 in

352mm1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Robot Vacuum Dimensions 348 x 352 x 97mm. The axes are not labelled. The dock line follows length, width and height, so 348 is stored as depth and 352 as width

Robot depthiLength of the robot from front to back. The Length in a maker's Length x Width x Height is the depth.

350mm1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026See width note

348mm1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: 348 x 352 x 97mm, see width

Robot heightiHeight at the robot's lowest operating position. A fixed lidar turret is included. A retractable turret is lowered. This decides which furniture the robot fits under.

97mm1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 20263.82 in = 97 mm. The LDS turret is fixed and included

97mm1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: 97 mm. The LDS is a fixed turret and is included. The maker's L60 article says 3.82in (97mm)3Maker product pagedreametech.com/blogs/blog/dreame-l60-series-vs-l50-ultra-robot-vacuum-comparisonRead 15 October 2026Same article: Robot Height 3.82in (97mm)

Height with sensor raisediHeight with a retractable lidar turret raised. Empty for a robot without a retractable sensor.

Not available

Not available

Robot weightiRobot with battery and dustbin, without the base station. Some store pages label the robot and dock together as Robot Weight. Check that the figure fits the robot alone.

4.1kg(9 lb)1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Spec table: Robot Vacuum Weight 9.04 lbs = 4.10 kg

4.44kg(9.8 lb)1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Robot Vacuum Weight 4.44kg

Base station dimensionsiWidth, depth and height of the dock. When the maker gives the depth with and without the ramp, the depth with the ramp is stored. Makers write the axes in different orders, so they are mapped with care. A size the maker gives for the robot and dock together counts only when the robot sits inside the dock's footprint, and the source note says so.

Width340Depth457Height590mm(13.4 × 18 × 23.2 in)1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Spec table: Base Station Dimensions 13.39 x 17.99 x 23.23 in, which is 340 x 457 x 590 mm in width, depth, height order. Depth follows the other Dreame docks. The ramp extension in the box is not described

Width340Depth457Height589mm(13.4 × 18 × 23.2 in)1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Base Station Dimensions 457 x 340 x 589mm. Stored as depth 457, width 340 and height 589, as for the L60 models

Base station weightiDock without the robot and with empty tanks.

9.2kg(20.3 lb)1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026Spec table: Base Station Weight 20.28 lbs = 9.20 kg

9.2kg(20.3 lb)1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Spec table: Base Station Weight 9.2kg

Certifications

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FCC IDs

Not available

Not available

Other certificationsiNamed certifications, verbatim, such as a TÜV SÜD or UL Solutions cybersecurity mark.

Not available

TÜV SÜD ETSI EN 303 645 (Remote Pet Monitoring)1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Footnote: Remote Pet Monitoring certified by TUV SUD, meeting ETSI EN 303 645

In the box

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In the boxiItems supplied with this exact model, verbatim.

Robot Vacuum x1, Base Station x1, Main Brush (pre-installed) x1, Brush Guard (pre-installed) x1, Side Brush (pre-installed) x1, Scale Inhibitor (pre-installed) x1, Dust Box (pre-installed, including dust box filter) x1, Mop Pad Holders x2, Mop Pads x2, Dust Bags (pre-installed x1) x2, Cleaning Tool x1, 200ml Cleaning Solution x1, Base Station Ramp Extension x1, Quick Start Guide x1, User Manual x11Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026What's in the Box list on the US page

Robot Vacuum ×1, Base Station ×1, Main Brush (pre-installed) ×1, Brush Guard (pre-installed) ×1, Side Brush (pre-installed) ×1, Scale Inhibitor (pre-installed) ×1, Dust Box (pre-installed, including dust box filter) ×1, Mop Pad Holder ×2, Mop Pad ×2, Dust Bag (pre-installed x1) ×2, 200ml Cleaning Solution ×1, Base Station Ramp Extension ×1, Quick Start Guide ×1, User Manual ×11Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026Package List for the L50 Ultra, verbatim. The US store page lists it for both colours

Links

Not compared

Product page

www.dreametech.com/products/l40s-ultra-robot-vacuum1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 2026

www.dreametech.com/products/l50-ultra-robot-vacuum1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 2026

Spec sheet

Not available

Not available

Manual

Not available

cdn.shopify.com/s/files/1/0302/5276/1220/files/L50_Ultra_R9493-EN_DE_FR_IT_ES_PL_NL_NO.pdf2Owner's manualcdn.shopify.com/s/files/1/0302/5276/1220/files/L50_Ultra_R9493-EN_DE_FR_IT_ES_PL_NL_NO.pdfRead 15 October 2026R9493 L50 Ultra manual, English, German, French and other languages. This is the EU version with 220-240 V ratings

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

Not available

Not available

Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

3years1Maker product pagedreametech.com/products/l40s-ultra-robot-vacuumRead 15 October 20263-Year Warranty on the US store page

3years1Maker product pagedreametech.com/products/l50-ultra-robot-vacuumRead 15 October 20263-Year Warranty on the US store page. The footnote says terms vary by region

Both are also in the API. Back to all robot vacuums.