Robot vacuums / Compare

Dreame L40 Ultra Gen 2 vs iRobot Roomba Plus 515 Combo

A

Product A: Dreame

L40 Ultra Gen 2

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B

Product B: iRobot

Roomba Plus 515 Combo

49 of 89 known

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Every value links to where we found it.

Only differences

ADreame L40 Ultra Gen 2

BiRobot Roomba Plus 515 Combo

General

6 of 7 differ

Series

L Series1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Listed under L Series in the store menu

Not available

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

RLL53SE, 010204AA001146, 010204AA001147, 010204AA001090, 010204AA0010911Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026US store SKUs 010204AA001146 (white) and 010204AA001147 (black) in the store product feed2Owner's manualmanualslib.com/manual/4399848/Dreame-L40-Ultra-Gen-2.htmlRead 15 October 2026Specifications page 20: robot model RLL53SE, base station model RCLE05126Retailer pageamazon.com/dp/B0FSJPFDPVRead 15 October 2026Item details: Model Number RLL53SE and Manufacturer Part Number RLL53SE. SmartHomeCompared gives the same model code9Spec databasesmarthomecompared.com/robot-vacuums/dreame-l40-ultra-gen-2Read 15 October 2026Model RLL53SE

N285020, N285220, N285040, N2852401Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026US item N285020 (black). The white item N285220 has its own page. The EU items N285040 (black) and N285240 (white) are on the iRobot Germany and Ireland pages2Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285220.htmlRead 15 October 2026US item N285220 is the white version, same robot3Maker product pageirobot.de/de/roomba-plus-515-combo/N285040.htmlRead 15 October 2026EU item N285040 (black). Structured data repeats the US UPC 885155054920, so it is not used as a GTIN for this item4Maker product pageirobot.de/de/roomba-plus-515-combo/N285240.htmlRead 15 October 2026EU item N285240 is the white version

GTIN / EAN

00850075094233, 00850075094240, 8101425627441Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026US store barcodes 00850075094233 (white) and 00850075094240 (black), written as the store prints them6Retailer pageamazon.com/dp/B0FSJPFDPVRead 15 October 2026Item details: UPC 810142562744 for the black unit on Amazon. It differs from the store barcodes, so it may be an Amazon packaging code

885155054920, 885155054975, 8851550548381Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Page structured data gives gtin14 885155054920, a 12-digit UPC, and Abt lists the same UPC for N285020. The German N285040 page repeats this number, so no GTIN is stored for N2850402Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285220.htmlRead 15 October 2026Page structured data gtin14 885155054975. Sylvane lists the same barcode for the white version4Maker product pageirobot.de/de/roomba-plus-515-combo/N285240.htmlRead 15 October 2026Page structured data gtin14 885155054838

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

Not available

12 May 20266Press releasewitt.dk/news/irobot-broadens-roomba-r-portfolio-extending-advanced-floor-care-to-more-homesRead 15 October 2026iRobot's portfolio announcement dated 2026-05-12 lists the Roomba 515 Combo with AutoWash Dock for Q3 2026

Status

Available8Press articlevacuumwars.com/dreame-l40-ultra-gen-2-and-d30-ultra-ceRead 15 October 2026In stock on Amazon on 2026-10-14

Available1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026In Stock with Add to Cart 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.

$649.994Maker product pagedreametech.com/blogs/blog/robot-vacuum-comparison-l40-l40s-ultra-ae-ceRead 15 October 2026Dreame blog dated 2026-02-10: the L40 Ultra Gen 2 was originally 649.99 USD. Gizmodo (2026-06-27) also gives a 649 USD standard price. The store regular price today is 799.99 USD and is not the launch price10Reviewgizmodo.com/prime-day-isnt-over-yet-and-dreame-l40-ultra-at-41-off-is-proof-25000pa-and-self-cleaning-dock-included-2000778180Read 15 October 2026Article dated 2026-06-27: 649 USD standard price, Prime Day price 384 USD

$699.995Press releasemedia.irobot.com/2026-07-07-iRobot-Redefines-Floor-Care-with-the-Introduction-of-a-5-in-1-Disinfecting-Hard-Floor-Cleaner-Along-with-a-New-Generation-of-Roomba-RobotsRead 15 October 2026Roomba Plus 515 Combo Robot + AutoWash Dock at 699.99 dollars MSRP. Excludes tax. The iRobot US page now shows 599.99 reduced from 699.99

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

€5993Maker product pageirobot.de/de/roomba-plus-515-combo/N285040.htmlRead 15 October 2026List price 599 EUR incl. VAT shown struck through. The sale price is 369 EUR on 2026-10-15 and is not used. Xataka reports 599 EUR at the Spanish launch7Press articlexataka.com/seleccion/oficial-irobot-renueva-su-gama-para-2026-nuevos-roomba-combo-575-515-ahora-compactos-potentesRead 15 October 2026Dated 2026-07-01: the official price of the Roomba Combo 515 is 599 euros in Spain, now discounted to 429 euros. Spain is not the German price, which is the same 599 EUR list price on irobot.de

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

US, CA3Maker product pageca.dreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Sold on the US and Canadian Dreame stores

US, EU1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026US store3Maker product pageirobot.de/de/roomba-plus-515-combo/N285040.htmlRead 15 October 2026EU store pages for Germany and Ireland

ColoursiThe maker's own colour names

White, Black1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Store options White and Black6Retailer pageamazon.com/dp/B0FSJPFDPVRead 15 October 2026Listing colours Black and White

Black, White1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Black on this page. The white twin is the N285220 page2Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285220.htmlRead 15 October 2026Structured data color White3Maker product pageirobot.de/de/roomba-plus-515-combo/N285040.htmlRead 15 October 2026Black, item N285040

Suction and brushes

5 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.

25,000Pa1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 202625,000 Pa Vormax suction from a 6th-generation TurboForce motor. Footnote: based on in-house lab data

22,000Pa3Maker product pageirobot.de/de/roomba-plus-515-combo/N285040.htmlRead 15 October 2026Text: 3x more suction at 22,000 Pa, intense 22,000 Pa of suction. The US page gives only the relative 3x claim and Amazon US lists 22,000Pa9Retailer pageamazon.com/dp/B0H3554RGSRead 15 October 2026Amazon US listing for N285020 with iRobot content: 22,000Pa of suction

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.

11Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Main Brush Type Rubber Brush. Box list: Main Brush x1

18Spec databasecompare.vacuumwars.com/compare/robot-vacuums/roomba_515_comboRead 15 October 2026Vacuum Wars hardware table: Brush Roll single

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

Rubber1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Main Brush Type Rubber Brush

Rubber and bristle1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Page: a unique rubber and bristle brush, and tangle-resistant rubber and bristle brushes. The FAQ says a flexible rubber brush and an edge-sweeping brush

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

Not available

Not available

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

No1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Main Brush Lifting is marked absent

Not available

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

11Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Box list: Side Brush x17Measurementcompare.vacuumwars.com/compare/robot-vacuums/dreame_l40_ultra_gen_2Read 15 October 2026Compare page: Side Brushes 1

18Spec databasecompare.vacuumwars.com/compare/robot-vacuums/roomba_515_comboRead 15 October 2026Vacuum Wars hardware table: Side Brushes 1

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/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Side Brush Extending yes (SideReach vacuuming)

Yes1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Page: Extending Edge-Sweeping brush with PerfectEdge, and extending brushes and mop pad

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

No1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Side Brush Lifting is marked absent

Not available

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.

250mL1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Dust Box Capacity 250 ml7Measurementcompare.vacuumwars.com/compare/robot-vacuums/dreame_l40_ultra_gen_2Read 15 October 2026Compare page: Robot Dustbin Capacity 250 ml

190mL8Spec databasecompare.vacuumwars.com/compare/robot-vacuums/roomba_515_comboRead 15 October 2026Vacuum Wars hardware table: Robot Dustbin Capacity 190 ml. No maker document with this figure was found, so it rests on this one source

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

Not available

Navigation and obstacles

6 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/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Navigation LDS. The turret sits on top of the robot and is part of the 97 mm height7Measurementcompare.vacuumwars.com/compare/robot-vacuums/dreame_l40_ultra_gen_2Read 15 October 2026Compare page: Navigation Type Spinning Lidar

Built-in lidar or ToF sensor1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Page: integrated ClearView LiDAR enables a slimmer design. Vacuum Wars lists embedded lidar and a Japanese review says a front sensor replaces the protruding top LiDAR

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

Pathfinder1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Guided by smart Pathfinder technology, the robot scans its surroundings in 360 degrees

ClearView LiDAR1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Page text: ClearView LiDAR. The press release says ClearView Dual Line LiDAR

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

3DAdapt obstacle avoidance with 3D structured light1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Obstacle Avoidance 3D Structured Light. Marketing: 3DAdapt obstacle avoidance with a built-in dynamic laser. Dreame's comparison blog says RGB AI plus 3D structured light, which conflicts with this table and with Vacuum Wars8Press articlevacuumwars.com/dreame-l40-ultra-gen-2-and-d30-ultra-ceRead 15 October 20263DAdapt structured light and Smart Pathfinder LiDAR

ClearView LiDAR mapping and obstacle recognition1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Page: ClearView LiDAR mapping and obstacle recognition navigate around cords, shoes and everyday mess. The page names no camera or AI recognition

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/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: AI Recognition and Object Type Count is marked absent. Vacuum Wars says the Gen 2 drops the RGB camera of the original L40 Ultra2Owner's manualmanualslib.com/manual/4399848/Dreame-L40-Ultra-Gen-2.htmlRead 15 October 2026The robot overview lists a laser distance sensor, bumper, edge sensor, cliff sensors and a carpet sensor. No camera is listed8Press articlevacuumwars.com/dreame-l40-ultra-gen-2-and-d30-ultra-ceRead 15 October 2026Article: the Gen 2 uses 3DAdapt structured light and Smart Pathfinder LiDAR and has no RGB camera

Not available

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

Not available

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.

No7Measurementcompare.vacuumwars.com/compare/robot-vacuums/dreame_l40_ultra_gen_2Read 15 October 2026Compare page: Dirt sensor No

Yes8Spec databasecompare.vacuumwars.com/compare/robot-vacuums/roomba_515_comboRead 15 October 2026Vacuum Wars hardware table: Dirt sensor yes. The Amazon listing also names a Dirt Detection Sensor9Retailer pageamazon.com/dp/B0H3554RGSRead 15 October 2026Special features list: Dirt Detection Sensor

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

20mm1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Obstacle Crossing Height 0.79 in (2 cm)7Measurementcompare.vacuumwars.com/compare/robot-vacuums/dreame_l40_ultra_gen_2Read 15 October 2026Compare page: Threshold Climbing Height 20 mm. Vacuum Wars has not tested this model

Not available

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.

Not available

Not available

Mopping

4 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/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Mop Type Dual Omni-Scrub Mops. DuoScrub system with two high-speed rotary mops

Spinning pads1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Page and FAQ: DualClean mop pads that spin at 180 RPM, a pair of spinning pads

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/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Mop Extending yes. MopExtend RoboSwing protrudes up to 4 cm7Measurementcompare.vacuumwars.com/compare/robot-vacuums/dreame_l40_ultra_gen_2Read 15 October 2026Compare page: Extending Mop Pad Yes

Yes1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Page: extending brushes and mop pad with PerfectEdge technology, and DualClean Mop Pads with PerfectEdge that reach deep into corners and edges

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/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Mop Lifting 0.41 in (10.5 mm). Footnote: the height difference of the robot before and after mop lifting7Measurementcompare.vacuumwars.com/compare/robot-vacuums/dreame_l40_ultra_gen_2Read 15 October 2026Compare page: Mop Raising Height 10.5 mm

10mm1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Page: automatically detects carpets and lifts mop pads 10mm before crossing rugs. The pads alone

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.

No1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Mop Removal is marked absent7Measurementcompare.vacuumwars.com/compare/robot-vacuums/dreame_l40_ultra_gen_2Read 15 October 2026Compare page: Drops Mop Pads at Station No

No8Spec databasecompare.vacuumwars.com/compare/robot-vacuums/roomba_515_comboRead 15 October 2026Vacuum Wars mopping table: Drops Mop Pads at Station no. Raises Mop Pads on Carpet yes at 10 mm

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

Not available

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

180rpm1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026FAQ and structured data: DualClean mop pads spin at 180 RPM. SmartScrub is a separate back and forth mode

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

80mL5Maker product pagedreametech.com/blogs/blog/dreame-l40-ultra-gen-2-robot-vacuums-reviewRead 15 October 2026Dreame review blog dated 2026-06-12: robot water tank 2.71 fl oz (80 ml). The same blog says the dock refills the robot's 80 ml tank

Not available

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

321Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 202632-level mop moisture adjustment, in-app

Not available

Base station

6 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/l40-ultra-gen2-robot-vacuumRead 15 October 2026PowerDock empties dust, washes and hot-air dries the mop pads and refills the robot clean water box

Auto-empty and mop washing1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026The AutoWash Dock auto-empties debris, hot washes and heat dries the mop pads

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, Robot tank refill, Self-cleaning wash tray1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Auto Hot Air Drying, Auto Water Box Refilling and the AceClean DryBoard self-cleaning washboard with 20 spray nozzles. Auto Solution Adding is listed as purchase separately, the module is not in the box, so auto_detergent is not stored

Hot-air drying, Robot tank refill, Self-cleaning wash tray1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Page: heat dries pads, refills water in the robot's onboard tank, and a self-cleaning cycle pumps water through the dock to wash away debris (FAQ). No place to add cleaning solution is described, so auto detergent is not listed

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 tanks1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026The CA FAQ says the user empties the dock used water tank and refills its clean water tank

Water tanks1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026FAQ: rinse the dock water tanks. The dock has water tanks and no plumbing is mentioned

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

Bag1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Dust Bag Capacity 3.2 L. Box list: Dust Bags x2

Bag1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Box list: AutoEmpty bags. Page: debris bag traps 99 percent of allergens as small as 0.7 microns

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

3.2L1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Dust Bag Capacity 3.2 L7Measurementcompare.vacuumwars.com/compare/robot-vacuums/dreame_l40_ultra_gen_2Read 15 October 2026Compare page: Bag Capacity 3.2 l

2.5L8Spec databasecompare.vacuumwars.com/compare/robot-vacuums/roomba_515_comboRead 15 October 2026Vacuum Wars dock table: Bag Capacity 2.5 l. The 415 dock has a 2.5 L bag per iRobot's Australian store

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/l40-ultra-gen2-robot-vacuumRead 15 October 2026Auto-Empty up to 100 days. Footnote: based on in-house lab data7Measurementcompare.vacuumwars.com/compare/robot-vacuums/dreame_l40_ultra_gen_2Read 15 October 2026Compare page: Days Before Empty 100 days

90days1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Page: self-empties for up to 3 months. Stored as 90 days, the figure the Amazon listing title and the Spanish launch article give. Conditions not stated9Retailer pageamazon.com/dp/B0H3554RGSRead 15 October 2026Listing title: 90 Days Self-Emptying

Clean water tankiClean water tank in the base station.

4.5L1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Clean/Used Water Tank Capacity 4.5 L / 4.0 L

Not available

Dirty water tankiDirty water tank in the base station.

4L1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: used water tank 4.0 L

Not available

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.

Not available

75°C1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Page, FAQ and description: hot washes mop pads at 167 F, which is exactly 75 C. The EU pages say 75/45 C. One feature slide says 140 F, which conflicts. The measuring point is not stated

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

45°C1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Page and FAQ: hot-air dries the pads at 113 F, which is exactly 45 C. The EU page text says 60 C once. The measuring point is not stated

Battery and charging

4 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/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Battery Capacity 5,200 mAh

5,200mAh1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Specifications: Battery Type 5200mAh NCM. Voltage is not published

Battery voltageiNominal pack voltage, such as 14.4 V.

14.4V2Owner's manualmanualslib.com/manual/4399848/Dreame-L40-Ultra-Gen-2.htmlRead 15 October 2026Specifications page 20: Rated Voltage 14.4 V. 5,200 mAh at 14.4 V is 74.9 Wh

Not available

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.

75W2Owner's manualmanualslib.com/manual/4399848/Dreame-L40-Ultra-Gen-2.htmlRead 15 October 2026Specifications page 20: Rated Power 75 W for the robot. The base station rated input is 120 V 60 Hz 4.1 A during dust emptying

Not available

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.

231min1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Up to 231 minutes and 1,679 sq ft (156 m2) in Vacuum Only mode under Quiet Suction. Footnote: in-house lab data6Retailer pageamazon.com/dp/B0FSJPFDPVRead 15 October 2026Listing: up to 231 minutes and 1,679 sq ft in Quiet Mode, Battery Life 231 minutes7Measurementcompare.vacuumwars.com/compare/robot-vacuums/dreame_l40_ultra_gen_2Read 15 October 2026Compare page: Official Battery Life 231 mins9Spec databasesmarthomecompared.com/robot-vacuums/dreame-l40-ultra-gen-2Read 15 October 2026Battery Life 231 minutes

295min1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Page and structured data: up to 295 minutes of runtime that covers 2,000 sq ft. Mode and conditions not stated. Vacuum Wars and Amazon list 200 and 202 minutes, which are not the maker's claim

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.

210min2Owner's manualmanualslib.com/manual/4399848/Dreame-L40-Ultra-Gen-2.htmlRead 15 October 2026Specifications page 20: Charging Time approx. 3.5 hours, stored as 210 minutes. SmartHomeCompared also lists 3.5 hours9Spec databasesmarthomecompared.com/robot-vacuums/dreame-l40-ultra-gen-2Read 15 October 2026Charging Time 3.5 hours

Not available

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

Yes1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026When the battery is low the robot auto-returns to the dock to recharge and resumes cleaning2Owner's manualmanualslib.com/manual/4399848/Dreame-L40-Ultra-Gen-2.htmlRead 15 October 2026Low battery sends the robot back to charge and it resumes unfinished cleaning tasks. Must be enabled in the app7Measurementcompare.vacuumwars.com/compare/robot-vacuums/dreame_l40_ultra_gen_2Read 15 October 2026Compare page: Recharge and Resume Yes

Yes8Spec databasecompare.vacuumwars.com/compare/robot-vacuums/roomba_515_comboRead 15 October 2026Vacuum Wars software table: Recharge and Resume yes

Noise

None of 1 known

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.

Not available

Not available

Connectivity and app

5 of 9 differ

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 GHz2Owner's manualmanualslib.com/manual/4399848/Dreame-L40-Ultra-Gen-2.htmlRead 15 October 2026Specifications page 20: Operation Frequency 2400-2483.5 MHz. Amazon states 2.4 GHz only6Retailer pageamazon.com/dp/B0FSJPFDPVRead 15 October 2026Only supports 2.4G WiFi, for USA use only7Measurementcompare.vacuumwars.com/compare/robot-vacuums/dreame_l40_ultra_gen_2Read 15 October 2026Compare page: Wi-Fi version 2.4 GHz

2.4 GHz8Spec databasecompare.vacuumwars.com/compare/robot-vacuums/roomba_515_comboRead 15 October 2026Vacuum Wars hardware table: Wi-Fi version 2.4 GHz. A comparison site lists 2.4 GHz yes and 5 GHz no10Spec databasesmarthomecompared.com/robot-vacuums/irobot-roomba-plus-515-combo-robot-plus-autowash-dockRead 15 October 2026Wi-Fi 2.4 GHz yes, 5 GHz no

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.

Not available

No8Spec databasecompare.vacuumwars.com/compare/robot-vacuums/roomba_515_comboRead 15 October 2026Vacuum Wars software table: Matter Compatible no. A comparison site also lists no Matter. The iRobot pages do not mention Matter10Spec databasesmarthomecompared.com/robot-vacuums/irobot-roomba-plus-515-combo-robot-plus-autowash-dockRead 15 October 2026Matter: no

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

Amazon Alexa, Siri, Google Home1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Compatible with Alexa, Siri and Google Home. Spec table: Voice Control Third-Party

Amazon Alexa, Siri, Google Assistant1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Footnote 6: works with Alexa, Siri and Google Assistant-enabled devices

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

No1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Voice Control Third-Party, so there is no built-in assistant. Vacuum Wars agrees7Measurementcompare.vacuumwars.com/compare/robot-vacuums/dreame_l40_ultra_gen_2Read 15 October 2026Compare page: Virtual Assistant No

Not available

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

Dreamehome5Maker product pagedreametech.com/blogs/blog/dreame-l40-ultra-gen-2-robot-vacuums-reviewRead 15 October 2026The Dreamehome App on iOS and Android

Roomba Home App1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Page: the Roomba Home App

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

41Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Multi-Level Mapping accurately maps up to 4 floors. Stored as 4 saved maps

31Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026FAQ: ClearView LiDAR creates up to 3 maps, even on different levels of the home

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

No7Measurementcompare.vacuumwars.com/compare/robot-vacuums/dreame_l40_ultra_gen_2Read 15 October 2026Compare page: Live Video Monitoring No

No8Spec databasecompare.vacuumwars.com/compare/robot-vacuums/roomba_515_comboRead 15 October 2026Vacuum Wars software table: Live Video Monitoring no

Measured

None of 7 known

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

Not available

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

Not available

Not available

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.

Not available

Not available

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.

Not available

Not available

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.

Not available

Not available

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.

Not available

Not available

Dimensions and weight

6 of 8 differ

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

Round1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Product photos show a round body, 350 x 350 mm

Round1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Round body in maker photos. Robot Dimensions 11.73 (L) x 11.93 (W) in

Robot widthiWidth of the robot from side to side.

350mm1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: 13.78 x 13.78 x 3.82 in (350 x 350 x 97 mm)

303mm1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Robot Dimensions 11.73 (L) x 11.93 (W) x 3.29 (H) in. 11.93 in = 303.0 mm. The EU pages give 30.3 cm. Width is the W figure3Maker product pageirobot.de/de/roomba-plus-515-combo/N285040.htmlRead 15 October 2026Robot Dimensions 29.8 (L) x 30.3 (W) x 8.35 (H) cm. Width is the W figure, 303 mm

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/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: 350 x 350 x 97 mm

298mm1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 202611.73 in = 297.9 mm. The EU pages give 29.8 cm. Depth is the L figure3Maker product pageirobot.de/de/roomba-plus-515-combo/N285040.htmlRead 15 October 2026Length 29.8 cm, 298 mm

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/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: 97 mm. The LDS turret is included

83.5mm1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 20263.29 in = 83.6 mm. The EU pages give 8.35 cm, which is stored. The LiDAR is part of the body, so this is the operating height3Maker product pageirobot.de/de/roomba-plus-515-combo/N285040.htmlRead 15 October 2026Height 8.35 cm, 83.5 mm

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.

4.01kg(8.8 lb)1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Robot Vacuum Weight 8.58 lbs (4.01 kg)9Spec databasesmarthomecompared.com/robot-vacuums/dreame-l40-ultra-gen-2Read 15 October 2026Vacuum Weight 4.01 kg

2.92kg(6.4 lb)1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026Robot Weight 6.44 lb. 6.44 x 0.45359237 = 2.92 kg. The EU pages give 2.9 kg3Maker product pageirobot.de/de/roomba-plus-515-combo/N285040.htmlRead 15 October 2026Robot Weight 2.9 kg. The US page converts to 2.92 kg, which is stored

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/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Base Station Dimensions 17.99 x 13.39 x 23.23 in (457 x 340 x 590 mm). Read as depth with the ramp 457, width 340 and height 590 as for other Dreame docks

Width340Depth330Height485mm(13.4 × 13 × 19.1 in)3Maker product pageirobot.de/de/roomba-plus-515-combo/N285040.htmlRead 15 October 2026Dock Dimensions 33 (L) x 34 (W) x 48.5 (H) cm. Depth is the L figure and width the W figure, as for the robot. The page does not say whether the ramp is included

Base station weightiDock without the robot and with empty tanks.

8.86kg(19.5 lb)1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026Spec table: Base Station Weight 19.53 lbs (8.86 kg)9Spec databasesmarthomecompared.com/robot-vacuums/dreame-l40-ultra-gen-2Read 15 October 2026Dock weight 8.86 kg

Not available

Certifications

None of 1 known

FCC IDs

Not available

Not available

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

Not available

Not available

In the box

1 of 1 differ

In the boxiItems supplied with this exact model, verbatim.

L40 Ultra Gen 2 Robot Vacuum, Base Station, Main Brush (pre-installed), Brush Guard (pre-installed), Side Brush (pre-installed), Dust Box (pre-installed, including filter), Mop Pads x2, Mop Pad Holders x2, Dust Bags x2 (1 pre-installed), Base Station Ramp Extension Plate, Quick Start Guide, User Manual1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026What's in the Box on the US page

Roomba Plus 515 Combo Robot, 515 AutoWash Dock, Line Cord, Extra AutoEmpty bag, Extra side brush1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026What's in the box on this US page, without quantities of 1

Links

Not compared

Product page

www.dreametech.com/products/l40-ultra-gen2-robot-vacuum1Maker product pagedreametech.com/products/l40-ultra-gen2-robot-vacuumRead 15 October 2026

www.irobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.html1Maker product pageirobot.com/en_US/roomba-plus-515-combo-robot-plus-autowash-dock/N285020.htmlRead 15 October 2026US store product page

Spec sheet

Not available

Not available

Manual

www.manualslib.com/manual/4399848/Dreame-L40-Ultra-Gen-2.html2Owner's manualmanualslib.com/manual/4399848/Dreame-L40-Ultra-Gen-2.htmlRead 15 October 2026ManualsLib copy of the 22-page Dreame L40 Ultra Gen 2 user manual for model RLL53SE. The maker's own download needs a form

Not available

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

1 of 1 differ

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/l40-ultra-gen2-robot-vacuumRead 15 October 2026US store banner: 3-Year Warranty. Vacuum Wars lists 1 year7Measurementcompare.vacuumwars.com/compare/robot-vacuums/dreame_l40_ultra_gen_2Read 15 October 2026Compare page: Warranty period 1 years. The US store says 3 years and is stored

1year8Spec databasecompare.vacuumwars.com/compare/robot-vacuums/roomba_515_comboRead 15 October 2026Vacuum Wars hardware table: Warranty period 1 years. Abt lists a 1 year limited parts and labor warranty and Amazon lists 1 year manufacturer. The US warranty term for iRobot robots is one year9Retailer pageamazon.com/dp/B0H3554RGSRead 15 October 2026Item details: Manufacturer Warranty Description 1 year manufacturer

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