Robot vacuums / Compare

Dreame L40s Ultra vs Roborock Saros 10R

A

Product A: Dreame

L40s Ultra

65 of 89 known

Change Dreame L40s Ultra

Compare the Roborock Saros 10R with

Search robot vacuums

B

Product B: Roborock

Saros 10R

78 of 89 known

Change Roborock Saros 10R

Compare the Dreame L40s Ultra with

Search robot vacuums

All 89 fields

Every value links to where we found it.

Only differences

ADreame L40s Ultra

BRoborock Saros 10R

General

6 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

Saros1Maker product pageus.roborock.com/products/roborock-saros-10rRead 14 October 2026

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

S91COP, RR-Saros10R5-M2, RRDE-Saros10R5-M2, S10R52-001Maker product pageus.roborock.com/products/roborock-saros-10rRead 14 October 2026US store SKU RR-Saros10R5-M2. S91COP is the robot model in the manual. RRDE-Saros10R5-M2 is the German store SKU. S10R52-00 is a retailer part number3Maker product pagede.roborock.com/products/roborock-saros-10rRead 14 October 20264Owner's manualsupport.roborock.com/hc/en-us/article_attachments/43356662832025Read 14 October 2026Basic Parameters: robot model S91COP. FCC/IC statement lists S91COP with US dock EWFD28LRR. The EU edition lists dock EWFD28HRR12Retailer pageeuronics.lv/en/housekeeping/vacuum-cleaners/robotic-vacuum-cleaners/s10r52-00/roborock-saros-10r-wet-dry-black-robot-vacuum-cleanerRead 14 October 2026Part number S10R52-0013Retailer pagepood.datafox.ee/en/robottolmuimejad/roborock-saros-10r-027-l-mustRead 14 October 2026MPN S10R52-00

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

195043005577, 6970995783469, 69369059031741Maker product pageus.roborock.com/products/roborock-saros-10rRead 14 October 2026195043005577 is the US store barcode, 6970995783469 the German store barcode and 6936905903174 the EAN a retailer lists for S10R52-003Maker product pagede.roborock.com/products/roborock-saros-10rRead 14 October 202613Retailer pagepood.datafox.ee/en/robottolmuimejad/roborock-saros-10r-027-l-mustRead 14 October 2026EAN 6936905903174

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

January 20257Press releasenewsroom.roborock.com/gl/news/roborock-launches-saros-10r-at-ces-2025-ultra-slim-and-highly-intelligent-robotic-vacuum-flagshipRead 14 October 2026Unveiled at CES 2025, release dated 2025-01-05

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 pageus.roborock.com/products/roborock-saros-10rRead 14 October 2026On sale on the US store with a price and an add-to-cart button on 2026-10-14

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

Roborock Saros 2017Reviewtechradar.com/home/robot-vacuums/the-outstanding-roborock-saros-10r-just-got-even-better-here-are-3-ways-the-saros-20-improves-on-its-predecessorRead 23 October 2026TechRadar calls the Roborock Saros 20 the successor to the Roborock Saros 10R.18Measurementrtings.com/robot-vacuum/tools/compare/roborock-saros-10r-vs-roborock-saros-20/88296/127216Read 23 October 2026RTINGS says the Roborock Saros 20 is the successor to the Roborock Saros 10R.

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

$1,599.991Maker product pageus.roborock.com/products/roborock-saros-10rRead 14 October 2026US store lists 899.99 against a struck 1599.99. The launch MSRP of 1599.99 is in the launch release7Press releasenewsroom.roborock.com/gl/news/roborock-launches-saros-10r-at-ces-2025-ultra-slim-and-highly-intelligent-robotic-vacuum-flagshipRead 14 October 2026Official US retail price USD 1599.9915Reviewbgr.com/reviews/roborock-saros-10r-reviewRead 14 October 2026Review lists 1,599.99 dollars

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

€1,449.993Maker product pagede.roborock.com/products/roborock-saros-10rRead 14 October 2026German store price 1449,99 euro, the German UVP. Includes VAT14Press articlemobiflip.de/shortnews/roborock-datum-preise-und-ein-angebot-fuer-die-neuen-saugroboter/ampRead 14 October 2026UVP 1.449,99 euro for the Saros 10R, with a launch price of 1.349,99 euro. Includes VAT

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, DE1Maker product pageus.roborock.com/products/roborock-saros-10rRead 14 October 2026

ColoursiThe maker's own colour names

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

Black12Retailer pageeuronics.lv/en/housekeeping/vacuum-cleaners/robotic-vacuum-cleaners/s10r52-00/roborock-saros-10r-wet-dry-black-robot-vacuum-cleanerRead 14 October 2026Listed as black

Suction and brushes

8 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

22,000Pa1Maker product pageus.roborock.com/products/roborock-saros-10rRead 14 October 2026A gallery image on the US page reads 22,000 Pa HyperForce suction power and the Amazon US listing title says 22000Pa. The page text gives no figure. The maker's global launch release says 20,000 Pa, its EU release 19,000 Pa, and both say values vary by country or region16Retailer pageamazon.com/dp/B0DHCJ571ZRead 14 October 2026Maker's Amazon US listing title: Saros 10R Robot Vacuum and Mop, 22000Pa. Its gallery also shows 22,000 Pa

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

12Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Maker calls DuoDivide two parallel short bristle rollers with spiral blades. Vacuum Wars calls it two brush rolls with a gap in the middle. Stored as one roll split into two halves, like the Saros 20 entry9Reviewvacuumwars.com/roborock-saros-10r-reviewRead 14 October 2026Review says it has two brush rolls with a gap in the middle to channel hair

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

Not available

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

DuoDivide Main Brush2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026

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 pageus.roborock.com/products/roborock-saros-10rRead 14 October 2026

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

14Owner's manualsupport.roborock.com/hc/en-us/article_attachments/43356662832025Read 14 October 2026Parts list shows one side brush

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

Yes2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026FlexiArm Riser Side Brush and Mop: extendable side brush and mop

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 pageus.roborock.com/products/roborock-saros-10rRead 14 October 2026

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

270mL9Reviewvacuumwars.com/roborock-saros-10r-reviewRead 14 October 2026Review says the internal dust bin is 270 ml

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

Not available

EPA E1111Reviewagdmaniak.pl/111765/test-roborock-saros-10rRead 14 October 2026Specification list: EPA filter type E11

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

Not available

Yes4Owner's manualsupport.roborock.com/hc/en-us/article_attachments/43356662832025Read 14 October 2026Parts list names the washable filter

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

Built-in lidar or ToF sensor2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Maker calls StarSight Autonomous System 2.0 an industry-first dual-transmitter solid-state LiDAR with 3D Time-of-Flight and says it replaces the standard LDS. There is no turret

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

StarSight Autonomous System 2.02Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026

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

3D ToF sensors, RGB camera and VertiBeam lateral obstacle avoidance2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 20263D sensors outline obstacles and an RGB camera recognises them. VertiBeam lateral obstacle avoidance is named separately

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

Yes2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026

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

1082Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Page says 108 types of objects recognizable

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 pageus.roborock.com/products/roborock-saros-10rRead 14 October 2026FAQ: intelligent dirt detection adjusts suction power based on dirt levels2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026DirTect Technology: heavy dust raises suction power

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

30mm7Press releasenewsroom.roborock.com/gl/news/roborock-launches-saros-10r-at-ces-2025-ultra-slim-and-highly-intelligent-robotic-vacuum-flagshipRead 14 October 2026AdaptiLift crosses standard thresholds of up to 3 cm, internal testing

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

40mm2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Page headline: 4cm Maximum Double-Layer Thresholds7Press releasenewsroom.roborock.com/gl/news/roborock-launches-saros-10r-at-ces-2025-ultra-slim-and-highly-intelligent-robotic-vacuum-flagshipRead 14 October 2026Complex double-layer thresholds of up to 4 cm, internal testing

Mopping

5 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 pads2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Dual spinning mops

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

Yes2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026

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

17mm1Maker product pageus.roborock.com/products/roborock-saros-10rRead 14 October 2026Page graphic: Mops Lifted, 17mm Mop Lift. The global page and launch release give up to 22 mm of mop lift when the chassis is lifted too3Maker product pagede.roborock.com/products/roborock-saros-10rRead 14 October 2026Page graphic lists 17 mm Anheben des Mopps

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

Yes2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026

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

10N11Reviewagdmaniak.pl/111765/test-roborock-saros-10rRead 14 October 2026Specification list: mop pads press with 10 N

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

180rpm11Reviewagdmaniak.pl/111765/test-roborock-saros-10rRead 14 October 2026Specification list: pads turn 180 times per minute

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

Not available

69mL11Reviewagdmaniak.pl/111765/test-roborock-saros-10rRead 14 October 2026Specification list: 69 ml water tank with auto-refilling12Retailer pageeuronics.lv/en/housekeeping/vacuum-cleaners/robotic-vacuum-cleaners/s10r52-00/roborock-saros-10r-wet-dry-black-robot-vacuum-cleanerRead 14 October 2026Water container 0.069 L

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

Not available

3011Reviewagdmaniak.pl/111765/test-roborock-saros-10rRead 14 October 2026Specification list: 30 water dosing levels

Base station

7 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 washing2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026

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 tray2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Page lists 80 C hot-water dock self-cleaning, auto detergent dispenser, warm-water auto-refilling of the robot tank and 55 C warm-air drying

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 tanks2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Standard Saros 10R has water tanks. A second option, Saros 10R with Refill and Drainage System, plumbs in a water inlet and drain. Only sold in certain regions

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

Bag4Owner's manualsupport.roborock.com/hc/en-us/article_attachments/43356662832025Read 14 October 2026Disposable dust bag

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

2.5L3Maker product pagede.roborock.com/products/roborock-saros-10rRead 14 October 2026Page lists a 2,5 l Staubbeutel. Retailers list 2.7 l11Reviewagdmaniak.pl/111765/test-roborock-saros-10rRead 14 October 2026Specification list: dock bag 2.5 l

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

70days2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Auto dust emptying allows up to 70 days without manual emptying. Depends on user habits and environment. The German page says 7 weeks

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

4L3Maker product pagede.roborock.com/products/roborock-saros-10rRead 14 October 2026Page lists a 4 l Reinwassertank11Reviewagdmaniak.pl/111765/test-roborock-saros-10rRead 14 October 2026Specification list: clean water tank 4 l15Reviewbgr.com/reviews/roborock-saros-10r-reviewRead 14 October 2026Spec box lists a 4 L clean water tank

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

3L11Reviewagdmaniak.pl/111765/test-roborock-saros-10rRead 14 October 2026Specification list: dirty water tank 3 l12Retailer pageeuronics.lv/en/housekeeping/vacuum-cleaners/robotic-vacuum-cleaners/s10r52-00/roborock-saros-10r-wet-dry-black-robot-vacuum-cleanerRead 14 October 2026Station dirt water tank 3 L15Reviewbgr.com/reviews/roborock-saros-10r-reviewRead 14 October 2026Spec box lists a 3 L dirty water tank

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

80°C2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Footnote: water at the dock's clean water dispensers can be heated up to 80 C at standard room temperature. Maker's internal test

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

55°C2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Footnote: air temperature around the air outlet can reach 55 C during drying at 25 C room temperature. Maker's internal test. The German page says 60 C

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

6,400mAh1Maker product pageus.roborock.com/products/roborock-saros-10rRead 14 October 2026Specifications list a 6400mAh lithium-ion battery4Owner's manualsupport.roborock.com/hc/en-us/article_attachments/43356662832025Read 14 October 2026Basic Parameters: 6400 mAh typical

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

14.4V4Owner's manualsupport.roborock.com/hc/en-us/article_attachments/43356662832025Read 14 October 2026Basic Parameters: 14.4 V / 6400 mAh (TYP) lithium-ion battery

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

66W11Reviewagdmaniak.pl/111765/test-roborock-saros-10rRead 14 October 2026Specification list: rated power (Moc znamionowa) 66 W12Retailer pageeuronics.lv/en/housekeeping/vacuum-cleaners/robotic-vacuum-cleaners/s10r52-00/roborock-saros-10r-wet-dry-black-robot-vacuum-cleanerRead 14 October 2026Listed as 66 W

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

180min9Reviewvacuumwars.com/roborock-saros-10r-reviewRead 14 October 2026Chart text lists 180 minutes official runtime on the low-power mode10Measurementvacuumwars.com/roborock-saros-10r-vs-10-comparisonRead 14 October 2026Official low-power runtime 180 minutes11Reviewagdmaniak.pl/111765/test-roborock-saros-10rRead 14 October 2026Declared run time 180 minutes vacuuming in quiet mode

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

180min4Owner's manualsupport.roborock.com/hc/en-us/article_attachments/43356662832025Read 14 October 2026Basic Parameters: charging time approx. 3 hours. The product page and launch release claim 2.5-hour fast charging with Dock 4.0 and BGR reports 150 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

Yes4Owner's manualsupport.roborock.com/hc/en-us/article_attachments/43356662832025Read 14 October 2026After a low-battery return to the dock the robot resumes where it left off

Noise

1 of 1 differ

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

BRoborock Saros 10R

Activity	Suction mode	Noise (dB(A))
Not available	Balanced	65
Mopping only	Quiet	55

Source2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Footnote: quiet mop-only mode is as low as 55 dB in a semi-anechoic chamber (page says 55dB or less). The balanced-mode 65 dB row is from the AGDmaniak review listed below11Reviewagdmaniak.pl/111765/test-roborock-saros-10rRead 14 October 2026Specification list: maximum noise 65 dB in balanced mode. The activity is not stated, so the row has none

Connectivity and app

6 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 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 GHz2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Page and manual: Wi-Fi 2.4 GHz only4Owner's manualsupport.roborock.com/hc/en-us/article_attachments/43356662832025Read 14 October 2026Only 2.4 GHz WiFi is supported6Maker spec sheet (PDF)cdn.shopify.com/s/files/1/0261/9844/2046/files/S91COP_EU_Declaration_of_Conformity.pdfRead 14 October 2026Lists EN 300 328 (2.4 GHz) as the radio spectrum standard and no 5 GHz standard

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

Yes8Press releasenewsroom.roborock.com/gl/news/roborock-releases-matter-protocol-update-leading-smart-home-integrationRead 14 October 2026Release dated 2025-03-31 lists Saros 10R among the models that get Matter firmware between 2025-04-01 and 2025-04-10

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, Google Home, Siri Shortcuts2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Voice commands via Amazon Alexa, Apple Siri Shortcuts or Google Home7Press releasenewsroom.roborock.com/gl/news/roborock-launches-saros-10r-at-ces-2025-ultra-slim-and-highly-intelligent-robotic-vacuum-flagshipRead 14 October 2026Compatible at launch with Amazon Alexa, Apple Siri Shortcuts and Google Home

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

Yes2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Built-in Intelligent Voice Assistant, Hello Rocky, works with no network required4Owner's manualsupport.roborock.com/hc/en-us/article_attachments/43356662832025Read 14 October 2026Parts list shows microphones on the robot

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

Roborock app4Owner's manualsupport.roborock.com/hc/en-us/article_attachments/43356662832025Read 14 October 2026Setup tells the user to search for Roborock in the app store

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

Yes2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Video Call and Cruise lets the user check in on pets through the robot

Measured

7 of 7 differ

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

0.58kPa10Measurementvacuumwars.com/roborock-saros-10r-vs-10-comparisonRead 14 October 2026Vacuum Wars manometer test at the brush housing, 0.58 kPa against a 0.80 kPa average. Page last updated 2026-09-17

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

Not available

15CFM10Measurementvacuumwars.com/roborock-saros-10r-vs-10-comparisonRead 14 October 2026Anemometer test, 15 CFM against a 16 CFM average

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

80%9Reviewvacuumwars.com/roborock-saros-10r-reviewRead 14 October 2026Vacuum Wars Carpet Deep Clean Test: sand embedded in medium-pile carpet, timed run on maximum power, 80 percent pickup against a 75 percent average. Review last updated 2026-08-28

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

92%9Reviewvacuumwars.com/roborock-saros-10r-reviewRead 14 October 20262.5-inch flattened pet hair on carpet, 92 percent against an 80 percent average. The comparison page shows 21.46 points for the same test, a different scale

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

Not available

26mm9Reviewvacuumwars.com/roborock-saros-10r-reviewRead 14 October 2026Single-step test cleared 20 mm and 26 mm boards and could not clear about 36 mm. Stored 26, the highest cleared board

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

249Reviewvacuumwars.com/roborock-saros-10r-reviewRead 14 October 2026Perfect 24 out of 24 in the standard and torture obstacle tests

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

113.16m²10Measurementvacuumwars.com/roborock-saros-10r-vs-10-comparisonRead 14 October 2026Square Feet per Charge (Estimated) 1218 sq ft, times 0.09290304. Battery efficiency 1.69 minutes per percent. The review chart text from 2026-08-28 gives 1,389 sq ft, which this newer page replaces

Dimensions and weight

4 of 8 differ

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

Round2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Round, 350 by 353 mm. A retailer title also says round13Retailer pagepood.datafox.ee/en/robottolmuimejad/roborock-saros-10r-027-l-mustRead 14 October 2026Product title lists the robot as round (Estonian ummargune)

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

350mm2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Robot 350*353*79.8 mm, listed in that order on the page

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

353mm2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Robot 350*353*79.8 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/l40s-ultra-robot-vacuumRead 15 October 20263.82 in = 97 mm. The LDS turret is fixed and included

79.8mm2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Robot 350*353*79.8 mm. The page also says 7.98 cm ultra-thin. No retractable sensor

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

4.1kg(9 lb)1Maker product pageus.roborock.com/products/roborock-saros-10rRead 14 October 2026Specifications list Robot Weight 9.04 lbs, which is 4.10 kg. Retailers list 4.1 kg12Retailer pageeuronics.lv/en/housekeeping/vacuum-cleaners/robotic-vacuum-cleaners/s10r52-00/roborock-saros-10r-wet-dry-black-robot-vacuum-cleanerRead 14 October 2026Product weight without packaging 4.1 kg

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

Width381Depth475Height488mm(15 × 18.7 × 19.2 in)2Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Saros 10R dock 381*475*488 mm. The refill and drainage dock is 381*475*300 mm

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

11.4kg(25.1 lb)1Maker product pageus.roborock.com/products/roborock-saros-10rRead 14 October 2026Specifications list Dock Weight 25.13 lbs, which is 11.40 kg

Certifications

1 of 1 differ

FCC IDs

Not available

Not available

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

Not available

TÜV Rheinland certified secure smart home product, ETSI EN 303 6452Maker product pageglobal.roborock.com/pages/roborock-saros-10rRead 14 October 2026Page says TUV Rheinland certification as a secure smart home product and compliance with ETSI EN 303 645

In the box

1 of 1 differ

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), Multifunctional Dock (1), Dock Base (1), Disposable Dust Bag (1), Power Cable (1), Rotating Mop Module (2), User Manual (1)1Maker product pageus.roborock.com/products/roborock-saros-10rRead 14 October 2026What's in the Box list on the US page, with the quantities as published

Links

Not compared

Product page

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

us.roborock.com/products/roborock-saros-10r1Maker product pageus.roborock.com/products/roborock-saros-10rRead 14 October 2026

Spec sheet

Not available

Not available

Manual

Not available

support.roborock.com/hc/en-us/article_attachments/433566628320254Owner's manualsupport.roborock.com/hc/en-us/article_attachments/43356662832025Read 14 October 2026

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/l40s-ultra-robot-vacuumRead 15 October 20263-Year Warranty on the US store page

1year1Maker product pageus.roborock.com/products/roborock-saros-10rRead 14 October 20261-year limited warranty on the US store page. The German store lists 2 years

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