Robot vacuums / Compare

eufy Omni S2 vs Roborock Saros 20 Sonic

A

Product A: eufy

Omni S2

76 of 89 known

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B

Product B: Roborock

Saros 20 Sonic

75 of 89 known

Change Roborock Saros 20 Sonic

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All 89 fields

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Only differences

Aeufy Omni S2

BRoborock Saros 20 Sonic

General

5 of 7 differ

Series

Omni S-Series11Reviewvacuumwars.com/eufy-omni-s2-first-lookRead 14 October 2026Vacuum Wars groups the model in the Eufy OMNI S-Series next to the OMNI S1 Pro

Saros1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026The US store lists the robot under the Saros series

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

T2081, T2081111, T2081G11, T2081B113Maker product pageuk.eufy.com/products/t2081g11Read 14 October 2026UK store SKU T2081G115Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Declaration of conformity names model T20816Maker spec sheet (PDF)salesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032573/en_US/000032573.pdfRead 14 October 2026EU and UK Declaration of Conformity V4.0 for product S2, model T2081, dated 2025-09-2616Retailer pageeuronics.ie/products/eufy-omni-s2-robot-vacuum-mop-black-t2081b11Read 14 October 2026Euronics Ireland product code T2081B11

RRE0VES, RR-Saros20Sonic5-M1, RRDE-Saros20Sonic5-M1, RRDE-Saros20Sonic0-M1, S20S02-001Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026US store SKU RR-Saros20Sonic5-M1. The manuals name the robot RRE0VES. The US dock is EWFD55LRR, or EWFD56LRR with the auto variant. The EU dock is EWFD55HRR. S20S02-00 is a retailer part number for the white model3Maker product pagede.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026German store SKUs RRDE-Saros20Sonic5-M1 (black) and RRDE-Saros20Sonic0-M1 (white)4Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20Sonic%20FCC%20User%20Manual.44438679.pdfRead 14 October 2026FCC statement: robot RRE0VES, docks EWFD55LRR and EWFD56LRR13Retailer pagepood.datafox.ee/en/robottolmuimejad/roborock-saros-20-sonic-valgeRead 14 October 2026Part number S20S02-00 for the white model

GTIN / EAN

194644273255, 1946442487103Maker product pageuk.eufy.com/products/t2081g11Read 14 October 2026Barcode 194644248710 in the UK store product data for T2081G11. The German store lists 194644273255 for the same SKU4Maker product pagede.eufy.com/products/t2081g11Read 14 October 2026Barcode 194644273255 in the German store product data for T2081G11. Sold in Germany as HydroJet S2

0195043008356, 6936905905383, 69369059053521Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026US store barcode 0195043008356. German store barcodes 6936905905383 for black and 6936905905352 for white3Maker product pagede.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026German store barcodes 6936905905383 (black) and 6936905905352 (white)13Retailer pagepood.datafox.ee/en/robottolmuimejad/roborock-saros-20-sonic-valgeRead 14 October 2026EAN 6936905905352 for the white model

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

September 202511Reviewvacuumwars.com/eufy-omni-s2-first-lookRead 14 October 2026Debuted at CES 2026 per Vacuum Wars. The German press says the S2 Omni was first shown at IFA 202514Press articlesmarthomeassistent.de/jetzt-aber-wirklich-eufy-s2-omni-steht-in-den-startloechernRead 14 October 2026eufy showed the S2 Omni at IFA 2025 in September 2025

January 20267Press releasenewsroom.roborock.com/gl/news/ces-2026-roborock-releases-the-world-s-first-robotic-vacuum-with-wheel-leg-architecture-as-it-joins-hands-with-real-madrid-football-club-Read 14 October 2026CES 2026 release dated 2026-01-06 announced the Saros 20 Sonic for the first half of 2026 with no price

Status

Available12Press articlevacuumwars.com/eufy-delays-launch-of-new-s2-robot-vacuumRead 14 October 2026On sale on the maker's US store and at Amazon in October 2026

Available1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Sold on the US and German stores. The US store was out of stock 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

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.

$1,599.9911Reviewvacuumwars.com/eufy-omni-s2-first-lookRead 14 October 2026List price $1,599.99 (Amazon price $1,499.99 on the page date). Excludes tax13Reviewtechradar.com/home/robot-vacuums/eufy-omni-s2-reviewRead 14 October 2026Recommended retail price $1,599 (also GBP 1,599 and AU$2,299). Vacuum Wars and the maker's US store give $1,599.99

$1,699.991Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026US store price 1,699.99 dollars with no discount shown. Vacuum Wars lists the same MSRP10Press articlevacuumwars.com/roborock-saros-20-sonic-launchRead 14 October 2026MSRP 1,699.99 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.

€1,49914Press articlesmarthomeassistent.de/jetzt-aber-wirklich-eufy-s2-omni-steht-in-den-startloechernRead 14 October 2026Maker's UVP of 1,499 EUR for Germany, with Amazon and other retailers from 2026-05-22. The Irish store lists 1,599 EUR, German price is used. Includes VAT

€1,5493Maker product pagede.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026German store lists the strikethrough list price of 1549,00 euro including VAT. The current price is 999,00 euro. A press report says the UVP was 1549 euro at the launch in February 2026

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

US, DE11Reviewvacuumwars.com/eufy-omni-s2-first-lookRead 14 October 2026US row: list price in USD on the US store and at Amazon. German row: see the smarthomeassistent.de source14Press articlesmarthomeassistent.de/jetzt-aber-wirklich-eufy-s2-omni-steht-in-den-startloechernRead 14 October 2026DE row: German market launch with UVP in EUR

US, DE1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026US store lists the robot. The German store also sells it

ColoursiThe maker's own colour names

Black15Retailer pagecoolblue.nl/en/product/974572/eufy-omni-s2.htmlRead 14 October 2026Coolblue lists Black16Retailer pageeuronics.ie/products/eufy-omni-s2-robot-vacuum-mop-black-t2081b11Read 14 October 2026Black

Black, White1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026The US page says the robot is available in classic black. The German store sells black and white3Maker product pagede.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026German store colors Schwarz and Weiss. The FAQ says classic black and white

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.

30,000Pa1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 202630,000 Pa AeroTurbo 2.0. Maker says the figure is from eufy lab testing

36,000Pa1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Key features: 36000 Pa HyperForce Motor. The CES release said 35,000 Pa and the product pages give 36,000 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.

100AW1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 2026Page states 30,000 Pa and 100AW suction. The German store also states 100AW/30.000Pa

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.

110Reviewvacuumwars.com/eufy-omni-s2-reviewRead 14 October 2026Review describes the DuoSpiral main brush as a split roller with a center gap. One roll split into two halves counts as one. The manual calls them rolling brushes in the plural

18Measurementcompare.vacuumwars.com/compare/robot-vacuums/roborock_saros_20_sonicRead 14 October 2026Brush roll: DuoDivide. One roll split into two halves counts as one

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

Not available

Not available

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

DuoSpiral1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 2026DuoSpiral brushes. The maker calls them DuoSpiral Detangle Brushes

DuoDivide Main Brush1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Dual Anti-Tangle System: DuoDivide and FlexiArm brushes

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

Yes1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 2026Brush lift of 0.8 cm for dried messes, see side_brush_lift

Yes2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026Liftable Brush and Mops: the main brush is lifted in mop mode and lowered in vacuum only mode

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

25Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Underside overview lists Side Brushes (x2)9Measurementvacuumwars.com/compare/robot-vacuums/eufy_omni_s2Read 14 October 2026Compare page lists 2 side brushes

14Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20Sonic%20FCC%20User%20Manual.44438679.pdfRead 14 October 2026Parts list A2-4 Side Brush, one8Measurementcompare.vacuumwars.com/compare/robot-vacuums/roborock_saros_20_sonicRead 14 October 2026Side 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 pageankernordics.com/robot-vacuum-s2Read 14 October 2026CornerRover Arm and the roller mop extend to the side for edges and corners (1.77 in extended side coverage)11Reviewvacuumwars.com/eufy-omni-s2-first-lookRead 14 October 2026First Look: the S2 adds an extending side brush

Yes1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Key features name the FlexiArm side brush. The manual troubleshooting says the side brush extends into corners2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026FlexiArm Arc Side Brush extends to clean along walls and corners

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

Yes1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 2026Automatic Mess Detection panel lists side and main brush lift of 0.8 cm for dried messes. Page text says S2 lowers its main brush, side brush and roller mop for dry debris

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.

50mm1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 2026Published as 2 in (5 cm). The chassis lifts automatically for shag carpets up to 5 cm. Based on measurements in the eufy laboratory2Maker product pageie.eufy.com/products/t2081g11Read 14 October 2026Carpets up to 5 cm

30mm1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Gallery graphic: clean carpets up to 1.18 inches (30 mm). The global page says up to 3 cm and that the setting needs manual enabling in the app2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026Dynamic cleaning for carpets up to 3 cm. Needs manual enabling in the app. Roborock internal test

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

330mL9Measurementvacuumwars.com/compare/robot-vacuums/eufy_omni_s2Read 14 October 2026Compare page lists Robot Dustbin Capacity 330 ml. One value, the maker states none

228mL3Maker product pagede.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Compare table: dust container 228 ml8Measurementcompare.vacuumwars.com/compare/robot-vacuums/roborock_saros_20_sonicRead 14 October 2026Robot dustbin capacity 228 ml

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

Metal filter and high-performance filter5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Dust bin parts list names a Metal Filter and a High-Performance Filter

Not available

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

Yes5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Section 7.1: rinse the metal and high-performance filter parts with the dust bin and air dry. No hot water, brush or detergent

Yes4Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20Sonic%20FCC%20User%20Manual.44438679.pdfRead 14 October 2026Parts list A6-1 Washable Filter. Maintenance says to rinse it

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.

Built-in lidar or ToF sensor1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 2026Page says CleanMind AI is powered by a 3D ToF sensor. No turret. Stored as built-in ToF sensor. The manual calls it a 3D dTOF sensor

Retractable lidar1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026FAQ: the robot retains RetractSense retractable LiDAR navigation2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026A retractable LDS gives a minimum clearance of 7.95 cm and stays elevated for 360 degree scanning in open spaces

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

3D MatrixEye 2.01Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 20263D MatrixEye 2.0 is the maker name for the obstacle recognition sensors. CleanMind AI System is the software system

RetractSense Navigation System2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026Maker names the RetractSense Navigation System with a retractable LDS

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

3D MatrixEye 2.0 with RGB camera, 3D dToF sensor and LED light1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 2026Manual front view shows an RGB camera, an LED light and a 3D dTOF sensor. The page names 3D MatrixEye 2.0 and says the system runs offline

Reactive AI 3.0 with triple structured light, RGB camera and VertiBeam lateral structured light1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026FAQ: Reactive AI 3.0 integrates tri-laser structured light, an RGB camera and a VertiBeam side laser

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.

Yes1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 2026Page says S2 detects 200+ obstacles and identifies 40+ mess types

Yes1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Reactive AI 3.0 obstacle recognition with an RGB camera

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

2001Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 2026Published as 200+ obstacle types

3001Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Gallery graphic: 300+ object types recognized2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026300+ types of objects recognized. Footnote 24: it can see and bypass objects as small as 3 cm wide and 3 cm tall

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.

Yes1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 2026Page says the S2 identifies 40+ mess types and gives tailored cleaning. The dock also checks water dirt level while washing the mop9Measurementvacuumwars.com/compare/robot-vacuums/eufy_omni_s2Read 14 October 2026Compare page lists Dirt sensor: Yes

Yes1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026DirTect technology uses an RGB camera to identify heavy dirt and stains and triggers deeper cleaning2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026DirTect uses an RGB camera to identify heavy dirt and stains

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

35mm1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 2026Single thresholds up to 1.38 in (3.5 cm). The manual says the robot may climb objects below 35 mm5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Tip D: the robot may climb on objects less than 35 mm in height11Reviewvacuumwars.com/eufy-omni-s2-first-lookRead 14 October 202635 mm single threshold

45mm1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026FAQ: single thresholds such as door sills up to 4.5 cm

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.

42mm1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 2026Double thresholds up to 1.65 in (4.2 cm). Eufy lab measurement, no step widths given2Maker product pageie.eufy.com/products/t2081g11Read 14 October 2026Crosses 4.2 cm thresholds11Reviewvacuumwars.com/eufy-omni-s2-first-lookRead 14 October 202642 mm on double tiers

88mm1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026FAQ: max threshold crossing 8.8 cm, as 4.5 cm plus 4.3 cm. Maker internal test with a gap deeper than 12 cm and up to 14 cm between the steps (global page footnote)2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026Footnote 2: double-layer thresholds up to 8.8 cm. First step up to 4.5 cm, gap deeper than 12 cm and up to 14 cm, second step up to 4.3 cm. Maker internal test

Mopping

7 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.

Roller1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 2026

Vibrating pad2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026VibraRise 5.0 Mopping System: a single extendable vibrating mop with 4000 vibrations per minute

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 pageankernordics.com/robot-vacuum-s2Read 14 October 20262Maker product pageie.eufy.com/products/t2081g11Read 14 October 2026Mop stays 5 mm from walls and the roller extends to the side

Yes1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026FAQ: VibraRise 5.0 uses an extendable mop to clean corners and edges2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026The single extendable mop reaches corners better than multi-pad systems

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.

28mm1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 2026Roller Mop Lift 1.1 in. Vacuum Wars and Coolblue give 28 mm. The chassis also lifts on carpet11Reviewvacuumwars.com/eufy-omni-s2-first-lookRead 14 October 2026Roller lifts 1.1 inches (28 mm)

20mm8Measurementcompare.vacuumwars.com/compare/robot-vacuums/roborock_saros_20_sonicRead 14 October 2026Mopping table: raises mop pads on carpet, mop raising height 20 mm. Roborock publishes no millimeter figure that was found

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.

Not available

Yes1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Gallery graphic: Mop Detach and Chassis Lift on carpet2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026When vacuum-only or carpet-first modes are active the mop detaches automatically to keep carpets dry

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.

15N1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 202615N downward pressure for the S2 in the roller mop comparison

14N1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026FAQ: downward pressure of 14 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.

240rpm2Maker product pageie.eufy.com/products/t2081g11Read 14 October 2026240 RPM with 15N pressure and electrolysed water. The UK store text says 360 RPM and ozonated water. The IE text matches the later electrolyzed water design and Vacuum Wars11Reviewvacuumwars.com/eufy-omni-s2-first-lookRead 14 October 2026First Look says 240 RPM and 15N for HydroJet 2.0

Not available

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

120mL5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Section 9 Specifications: Clean Water Reservoir 120 ml. Dirty water reservoir on the robot is 150 ml

70mL3Maker product pagede.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Compare table: water tank 70 ml

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

35Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Section 4: choose between three water levels in the app

Not available

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 washing5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Omni Station with dust bag, clean water tank, dirty water tank and mop drying

Auto-empty and mop washing1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Page: the dock empties the robot into a disposable dust bag, washes the mop with hot water and dries it

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 refill1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 202612-in-1 UniClean station with automatic detergent dispensing and 55 C hot air drying. Robot water refill is stated on the maker support page and by TechRadar13Reviewtechradar.com/home/robot-vacuums/eufy-omni-s2-reviewRead 14 October 2026Dock replenishes the robot's water supply, washes the mop with warm water, dries with hot air and refills the detergent tank

Hot-air drying, Auto detergent, Robot tank refill, Self-cleaning wash tray1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Page lists automatic detergent dispensing, warm water auto-refilling of the robot tank, dock self-cleaning with up to 212 F hot water and 131 F warm air drying of mops, dust bag and ducts2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026Warm Water Auto-Refilling fills the robot's water tank with warm water. Auto Detergent Dispenser. 100 C Hot Water Dock Self-Cleaning. 55 C warm air for mop drying and for the dust path

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 optional8Maker product pageuk.eufy.com/products/t210l110Read 14 October 2026The S2 Auto Water Refill and Drainage System is a separate accessory for the Omni S2 dock, also sold as a bundle. The dock ships with water tanks

Water tanks2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026Saros 20 Sonic has clean and dirty water tanks. A second option, Saros 20 Sonic with Refill and Drainage System, plumbs in a water inlet and drain. It differs by region and country

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

Bag5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Disposable dust bag, replaced in section 7.5

Bag4Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20Sonic%20FCC%20User%20Manual.44438679.pdfRead 14 October 2026Parts list A8 Disposable Dust Bag8Measurementcompare.vacuumwars.com/compare/robot-vacuums/roborock_saros_20_sonicRead 14 October 2026Self empty bin type: bagged

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

2.5L5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Disposable Dust Bag Capacity 2.5 L. Trusted Reviews says 3 L, the manual is used

Not available

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.

68days2Maker product pageie.eufy.com/products/t2081g11Read 14 October 2026Stores dust for 68 days. Maker figure, conditions not stated

65days2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026Auto Dust Emptying allows up to 65 days without manual emptying. The footnote text is empty. Depends on use

Clean water tankiClean water tank in the base station.

3L5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Clean Water Tank 3 L. Trusted Reviews says 2.5 L, the manual and TechRadar say 3 L

4L11Spec databasesmarthomeassistent.de/saugroboter/roborock-saros-20-sonicRead 14 October 2026Data sheet: fresh water tank 4000 ml. Vacuum Wars lists a 4 litre tank

Dirty water tankiDirty water tank in the base station.

2L5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Dirty Water Tank 2 L. Trusted Reviews says 1.8 L, the manual and TechRadar say 2 L

3.5L11Spec databasesmarthomeassistent.de/saugroboter/roborock-saros-20-sonicRead 14 October 2026Data sheet: dirty water tank 3500 ml

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.

60°C1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 2026Washes the mop with 60 C hot water. The measuring point is not stated. TechRadar says 70 C, the maker figure is used

100°C1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Page: 212 F hot water deep cleans mop pads. FAQ: up to 100 C. The global page footnote says water at the clean water dispensers of the dock can reach 100 C. Maker internal test2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026Footnote 19: water at the clean water dispensers of the dock can be heated up to 100 C at 1 atm and room temperature. Maker 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.

55°C1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 202655 C hot air drying of the mop and dock base. The manual says drying falls back to room-temperature air when the room is above 35 C5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Warm air drying function. Falls back to room-temperature air above 35 C ambient

55°C1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Page: 131 F warm air dries mops, dust bags and ducts. The global page footnote says 55 C at the base outlet2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026Footnote 21: air at the base outlet during drying can reach 55 C at standard room temperature. Maker internal test

Battery and charging

5 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.

4,600mAh5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Specifications: Li-ion 4600mAh DC21.6V. Nominal or rated not stated

6,400mAh1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026FAQ: 6,400 mAh high-performance battery4Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20Sonic%20FCC%20User%20Manual.44438679.pdfRead 14 October 2026Basic Parameters: 6400 mAh typical

Battery voltageiNominal pack voltage, such as 14.4 V.

21.6V5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Specifications: Li-ion 4600mAh DC21.6V

14.4V4Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20Sonic%20FCC%20User%20Manual.44438679.pdfRead 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.

Not available

65W3Maker product pagede.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Compare table: rated power 65 W in a cell shared with the Saros 20 column

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.

260min5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Vacuum only mode: Quiet Suction 260 min, Standard 179 min, MAX 130 min. TechRadar and Vacuum Wars list 180 min, which is about the standard mode

190min3Maker product pagede.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Compare table: run time 190 min in quiet mode. The FAQ gives up to 180 min in vacuum and mop mode with balanced suction8Measurementcompare.vacuumwars.com/compare/robot-vacuums/roborock_saros_20_sonicRead 14 October 2026Official battery life 190 mins

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.

240min5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Charging Time 4h, stored as 240 minutes. Start and end percentages are not stated

150min1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Page: charges in just 150 minutes. The FAQ says about 2.5 hours from 15 to 100 percent. The global page says it fully charges the 6400 mAh battery in 150 minutes2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026150-min Fast Charging: fully charges the 6400 mAh battery in 150 minutes

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

Yes9Measurementvacuumwars.com/compare/robot-vacuums/eufy_omni_s2Read 14 October 2026Compare page lists Recharge and Resume: Yes. TechRadar also says the robot returns to base to charge

Yes4Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20Sonic%20FCC%20User%20Manual.44438679.pdfRead 14 October 2026Manual: if the battery runs low the robot returns to the dock and resumes where it left off after charging

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.

Aeufy Omni S2

Not available

BRoborock Saros 20 Sonic

Activity	Suction mode	Noise (dB(A))
Mopping only	Mop Only	55
Vacuuming and mopping	Balanced	63
Mop washing	Not available	57
Mop drying	Not available	43
Dock emptying	Not available	74

Source3Maker product pagede.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026FAQ: mop only 55 dB, vacuum and mop with balanced suction 63 dB, dock mop washing about 57 dB, warm-air drying 43 dB, auto-emptying 74 dB for under a minute. The compare table lists 64 dB for balanced mode. Weighting is not stated6Maker product pagehelp.roborock.com/en-US/product/roborock-saros-20-sonic-messageRead 14 October 2026Support FAQ: mop only 55 dB, vac and mop balanced 63 dB, dock mop washing about 57 dB, warm-air drying 43 dB, auto-emptying 74 dB for under a minute

Connectivity and app

8 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

Wi-Fi 65Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20Sonic%20CE%20DE%20User%20Manual.44837319.pdfRead 14 October 2026RF specification table lists 802.11b/g/n/ax on 2.4 GHz and 802.11a/n/ac/ax on 5 GHz. The maker does not use the name Wi-Fi 6. Vacuum Wars lists 2.4 GHz only

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 GHz5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Operation Frequency 2.4G Band (2.4000 to 2.4835 GHz). No 5 GHz is listed. Vacuum Wars also lists 2.4 GHz

2.4 GHz, 5 GHz5Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20Sonic%20CE%20DE%20User%20Manual.44837319.pdfRead 14 October 2026RF specification table lists 2.4 GHz and 5 GHz. The manual is used

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

Not available

5.45Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20Sonic%20CE%20DE%20User%20Manual.44837319.pdfRead 14 October 2026RF specification table lists BLE v5.4

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

Yes1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 2026Matter protocol supported5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Section 5: compatible with Matter, Alexa, Siri and Google Assistant

Yes1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Page: Voice-Activated, Matter-Enabled. The global page says Matter supported2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026Third-Party Control: Matter supported

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

Amazon Alexa, Google Assistant, Siri5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Section 5 names Alexa, Siri and Google Assistant

Amazon Alexa, Google Home, Siri1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Gallery graphic lists Amazon Alexa, Siri, Google Home and Matter2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026Compatible with Alexa, Siri and Google Home

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

Not available

Yes1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Page: say Hello Rocky. The robot listens and responds even without Wi-Fi2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026Built-in Voice Assistant: say Hello Rocky. It responds even without Wi-Fi

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

eufy app5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Section 2.3: download the app from the App Store or Google Play and log in to a eufy account

Roborock app4Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20Sonic%20FCC%20User%20Manual.44438679.pdfRead 14 October 2026Setup tells the user to download the Roborock app

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

57Maker product pageservice.eufy.com/article-description/Does-the-S2-Robot-Support-Multiple-Floors-Can-the-S2-Robot-Save-Multiple-MapsRead 14 October 2026Maker support article: a maximum of five maps can be saved

Not available

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

No9Measurementvacuumwars.com/compare/robot-vacuums/eufy_omni_s2Read 14 October 2026Compare page lists Live Video Monitoring: No. The review also says there is no live video in the app10Reviewvacuumwars.com/eufy-omni-s2-reviewRead 14 October 2026Review says eufy does not offer remote live video viewing in the app

Yes1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Page: gentle around pets, tracks their location and lets you check in anytime. The global page names Video Call and Cruise2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026Video Call and Cruise: check in on pets or the home in real time

Measured

6 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.

1.43kPa9Measurementvacuumwars.com/compare/robot-vacuums/eufy_omni_s2Read 14 October 2026Vacuum Wars suction test at the brush housing, maximum power, 1.43 kPa

0.61kPa8Measurementcompare.vacuumwars.com/compare/robot-vacuums/roborock_saros_20_sonicRead 14 October 2026Vacuum Wars manometer test at the brush housing, 0.61 kPa. The page shows no test date

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

15CFM9Measurementvacuumwars.com/compare/robot-vacuums/eufy_omni_s2Read 14 October 2026Vacuum Wars airflow test, maximum power, 15 CFM

15CFM8Measurementcompare.vacuumwars.com/compare/robot-vacuums/roborock_saros_20_sonicRead 14 October 2026Vacuum Wars anemometer test, 15 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.

87%9Measurementvacuumwars.com/compare/robot-vacuums/eufy_omni_s2Read 14 October 2026Vacuum Wars Carpet Deep Clean Test, embedded sand in medium-pile carpet, 87 percent10Reviewvacuumwars.com/eufy-omni-s2-reviewRead 14 October 202687 percent embedded sand removed, studio average 78 percent

92%8Measurementcompare.vacuumwars.com/compare/robot-vacuums/roborock_saros_20_sonicRead 14 October 2026Vacuum Wars Carpet Deep Clean Test: sand embedded in medium-pile carpet, timed run on maximum power. The page shows 92 with no unit. The review calls it a percentage9Reviewvacuumwars.com/roborock-saros-20-sonic-reviewRead 14 October 202692 percent embedded sand removed, category average 78 percent

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.

88.5%9Measurementvacuumwars.com/compare/robot-vacuums/eufy_omni_s2Read 14 October 2026Vacuum Wars 2.5-inch flattened pet hair test, 88.5 percent10Reviewvacuumwars.com/eufy-omni-s2-reviewRead 14 October 202688.5 percent of 2.5-inch flattened hair removed, studio average 82.2 percent

77.75%8Measurementcompare.vacuumwars.com/compare/robot-vacuums/roborock_saros_20_sonicRead 14 October 2026Vacuum Wars 2.5 inch flattened pet hair test on carpet, 77.75. The review rounds it to 78 percent9Reviewvacuumwars.com/roborock-saros-20-sonic-reviewRead 14 October 202678 percent of 2.5-inch flattened hair removed, category average 82 percent

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

32mm10Reviewvacuumwars.com/eufy-omni-s2-reviewRead 14 October 2026Vacuum Wars single-step test (starts at 19 mm, adds about 6 mm strips). The robot cleared a 32 mm threshold once in three attempts. Review last updated 2026-08-28

57mm9Reviewvacuumwars.com/roborock-saros-20-sonic-reviewRead 14 October 2026Single-tier threshold test: the Sonic cleared 57 millimeters. Review last updated 2026-08-28. The Saros 20 shows the same figure

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

2410Reviewvacuumwars.com/eufy-omni-s2-reviewRead 14 October 2026Standard and torture obstacle tests: 24 of 24 objects avoided, studio average 16

199Reviewvacuumwars.com/roborock-saros-20-sonic-reviewRead 14 October 2026Standard and torture evaluations: avoided 19 out of 24 obstacles

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.

101.08m²9Measurementvacuumwars.com/compare/robot-vacuums/eufy_omni_s2Read 14 October 2026Compare page 1088 sq ft times 0.09290304 = 101.08 m2. Battery efficiency 1.58 min per percent and navigation efficiency 0.64 m2 per min, lowest power setting without mopping10Reviewvacuumwars.com/eufy-omni-s2-reviewRead 14 October 2026Review text: 1,088 sq ft estimated per charge

113.81m²8Measurementcompare.vacuumwars.com/compare/robot-vacuums/roborock_saros_20_sonicRead 14 October 2026Square Foot Per Charge 1225, times 0.09290304. Battery efficiency 1.65 minutes per percent on the lowest suction setting without mopping on a fixed floor plan. It is an estimate, not a full-charge run

Dimensions and weight

7 of 8 differ

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

Square17Reviewnextpit.de/tests/eufy-s2-omni-testRead 14 October 2026Square form and 9.8 cm height. Stored as square18Reviewtrustedreviews.com/reviews/eufy-omni-s2Read 14 October 2026Describes the robot as a rounded square rather than the more common circular design, 98 mm high with no lidar dome

Round2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026Round body seen in maker photos. A retailer title says round13Retailer pagepood.datafox.ee/en/robottolmuimejad/roborock-saros-20-sonic-valgeRead 14 October 2026Product shape listed as round

Robot widthiWidth of the robot from side to side.

326mm5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Specifications: robot 326 x 358 x 98 mm. Axis labels are not printed. Coolblue lists width 32.6 cm, so 326 is the width and 358 the depth15Retailer pagecoolblue.nl/en/product/974572/eufy-omni-s2.htmlRead 14 October 2026Width 32.6 cm (the Depth row on this page, 9.8 cm, is the height)

350mm1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Specifications: robot 350*353*79.8 mm. Width and depth are taken in the listed order

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

358mm5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026See width note

353mm1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026See width note

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.

98mm5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 202698 mm with no turret. Vacuum Wars lists 3.9 in. TechRadar and Trusted Reviews list 85 mm and 350 mm in their spec tables, the manual is used

79.8mm1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Specifications: robot 350*353*79.8 mm. The page also says 7.95 cm low clearance. The global footnote says the body height is 7.98 cm and passive compression allows 7.95 cm. The sensor is retracted2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026Robot 350 x 353 x 79.8 mm. Footnote 13: body height 7.98 cm and up to 7.95 cm with passive compression, scraping may occur

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.

5.2kg(11.5 lb)5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Published as 11.46 lbs. Coolblue lists 5.2 kg15Retailer pagecoolblue.nl/en/product/974572/eufy-omni-s2.htmlRead 14 October 20265.2 kg

5.1kg(11.2 lb)11Spec databasesmarthomeassistent.de/saugroboter/roborock-saros-20-sonicRead 14 October 2026Data sheet gives the robot as 5.16 kg. Smart Home Compared gives 5.1 kg. Stored 5.112Spec databasesmarthomecompared.com/robot-vacuums/roborock-saros-20-sonicRead 14 October 2026Vacuum weight 5.1 kg, weight of the robot unit itself

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.

Width387Depth476Height670mm(15.2 × 18.7 × 26.4 in)5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Station 387 x 476 x 670 mm. Height 670 mm and width 387 mm match Coolblue and nextpit (38.7 x 47.6 x 67.0 cm). TechRadar lists 380 x 450 x 670 mm

Width409Depth440Height470mm(16.1 × 17.3 × 18.5 in)2Maker product pageglobal.roborock.com/pages/roborock-saros-20-sonicRead 14 October 2026Key Specs list the dock as 440 x 409 x 470 mm. The German store lists 409 x 440 x 470 mm and the Smart Home Assistent data sheet labels it 40.9 wide x 44.0 deep x 47.0 high cm. The German order is stored. The axis order is uncertain3Maker product pagede.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Spec list: robot 350 x 353 x 79.8 mm, dock 409 x 440 x 470 mm11Spec databasesmarthomeassistent.de/saugroboter/roborock-saros-20-sonicRead 14 October 2026Data sheet: station 40.9 x 44.0 x 47.0 cm, labeled width, depth and height12Spec databasesmarthomecompared.com/robot-vacuums/roborock-saros-20-sonicRead 14 October 2026Dock 409 x 440 x 470 mm

Base station weightiDock without the robot and with empty tanks.

9.45kg(20.8 lb)5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Published as 20.83 lbs, converted to 9.45 kg. Includes the dock as shipped. Tanks empty is not stated

10.3kg(22.7 lb)12Spec databasesmarthomecompared.com/robot-vacuums/roborock-saros-20-sonicRead 14 October 2026Dock weight 10.3 kg. The maker lists robot plus dock as 15.8 kg with accessories on the German page and 14.33 kg on the US page

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.

TÜV SÜD ETSI EN 303 645 cybersecurity verification1Maker product pageankernordics.com/robot-vacuum-s2Read 14 October 2026Page says the obstacle recognition system is verified by TUV SUD under ETSI EN 303 645

TÜV Rheinland Certified Protected Privacy IoT Service, ID 1111252031, UL Verified Security Capabilities Verified Diamond, V6110361Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026Privacy First graphic shows a TUV Rheinland Certified Protected Privacy IoT Service mark with ID 1111252031 and a UL Verified Security Capabilities Verified Diamond mark with ID V611036

In the box

1 of 1 differ

In the boxiItems supplied with this exact model, verbatim.

Omni Station, Clean Water Tank, Detachable Base, Robot Vacuum Cleaner (RoboVac), Dirty Water Tank, Water Tank Holder, Floor Cleaner, Fragrance Refill (Bonus), Quick Start Guide, Safety Sheet, Power Cord, Dust Bag5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026Section 1.1 What's in the Box. Fragrance refill is marked Bonus

Robot, Dock Base, User Manual, Power Cord, Dock (Disposable Dust pre-installed)1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026What's in the Box list on the US page

Links

Not compared

Product page

uk.eufy.com/products/t2081g113Maker product pageuk.eufy.com/products/t2081g11Read 14 October 2026

us.roborock.com/products/roborock-saros-20-sonic1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026US store page. It showed out of stock and coming soon on 2026-10-14

Spec sheet

Not available

Not available

Manual

salesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdf5Owner's manualsalesforce-knowledge-download.s3.us-west-2.amazonaws.com/000032309/en_US/000032309.pdfRead 14 October 2026

gl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20Sonic%20FCC%20User%20Manual.44438679.pdf4Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20Sonic%20FCC%20User%20Manual.44438679.pdfRead 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

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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.

2years3Maker product pageuk.eufy.com/products/t2081g11Read 14 October 2026UK store: every eufy robot vacuum launched in 2026 has a 2-year guarantee, double the standard coverage. Vacuum Wars lists 1 year

1year1Maker product pageus.roborock.com/products/roborock-saros-20-sonicRead 14 October 20261-year limited warranty on the US store page. The German store gives 2 years3Maker product pagede.roborock.com/products/roborock-saros-20-sonicRead 14 October 2026German store says all new Roborock devices have a 2-year warranty. The US store gives 1 year. Stored 1 for the US store, like the other Roborock entries

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