Robot vacuums / Compare

Narwal Flow 2 vs Roborock Saros 20

A

Product A: Narwal

Flow 2

63 of 89 known

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B

Product B: Roborock

Saros 20

73 of 89 known

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All 89 fields

Every value links to where we found it.

Only differences

ANarwal Flow 2

BRoborock Saros 20

General

4 of 7 differ

Series

Flow1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Narwal names the earlier model Flow and the successor Flow 2

Saros1Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 2026

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

X30W, X30B, YJCC0361Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026US store variant names X30W and X30B. YJCC036 is the robot model in the manual2Owner's manualcdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdfRead 14 October 2026Applicable Models: YJCC036 with self-cleaning charging dock YJCB036BH

RRE0CPS, RR-Saros205-M1, RRDE-Saros205-M1, S2052-001Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 2026US store SKU RR-Saros205-M1. RRE0CPS is the robot model in the manual. S2052-00 is a retailer part number4Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20FCC%20User%20Manual.41593654.pdfRead 14 October 2026FCC statement page lists robot model RRE0CPS and Empty Wash Fill Dock EWFD42LRR10Retailer pagepood.datafox.ee/mobiilseadmed-ja-tarvikud/robottolmuimejad/vacuum-cleaner-robot-saros-20-black-s2052-00Read 14 October 2026Retailer lists MPN S2052-00 for Saros 20 black

GTIN / EAN

6972075733470, 6972075738536, 69720757385743Maker product pageeu.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026EU store barcodes: X30W Basic dock 6972075733470, X30B Basic dock 6972075738536, X30B with Auto Refill and Drainage System 6972075738574

0195043008363, 69369059053141Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 2026GTIN 0195043008363 is in the US page structured data

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

January 20268Review9to5google.com/2026/06/24/narwal-flow-2-reviewRead 14 October 2026First shown at CES in January 2026 according to the launch coverage

January 20269Press articlesmarthomeassistent.de/roborock-saros-20-kurz-vor-marktstartRead 14 October 2026Presented at CES in early January 2026 with a Q1 2026 market launch

Status

Available1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Structured data shows InStock at $1,299.99 with $1,499.99 as the regular price

Available9Press articlesmarthomeassistent.de/roborock-saros-20-kurz-vor-marktstartRead 14 October 2026Sold on the maker's US, German and other regional stores in October 2026

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

Not available

Roborock Saros 10R11Reviewtechradar.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.12Measurementrtings.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.

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.

$1,499.991Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Regular price $1,499.99 on the US page, the same MSRP is named in the Vacuum Wars and 9to5Google reviews. Excludes tax. The US page shows $1,299.99 as the current offer8Review9to5google.com/2026/06/24/narwal-flow-2-reviewRead 14 October 2026Review of 2026-06-24 states a price of $1,499, discounted to $1,049 at the time

$1,599.998Reviewtomsguide.com/home/home-appliances/roborock-saros-20-reviewRead 14 October 2026Review states a US MSRP of $1,599.99 on the Roborock website, US release 2026-03-23. Excludes tax

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.

€1,2996Reviewdeskmodder.de/blogRead 14 October 2026Review of 2026-04-20 gives a UVP of 1,299 euro for the standard dock and 1,499 euro for the Auto Refill and Drainage variant. The 1,099 euro price is a launch offer7Press articlesmarthomeassistent.de/deal-narwal-flow-2-im-angebotRead 14 October 2026Article says the Flow 2 had a UVP of 1,299.00 euro at its release in April 2026. Germany, incl. VAT. This is the basic dock model. The EU launch offer of 1,099 euro until 2026-05-16 is separate. The deskmodder review states 1,499 euro UVP for the Auto Refill and Drainage variant

€1,4998Reviewtomsguide.com/home/home-appliances/roborock-saros-20-reviewRead 14 October 2026Review states an EU MSRP of 1,499 euro and an early 2026 EU release. Also reported as UVP 1.499 euro by smarthomeassistent.de9Press articlesmarthomeassistent.de/roborock-saros-20-kurz-vor-marktstartRead 14 October 2026UVP 1,499 euro, launch offer 1,289 euro from 2026-02-26 to 2026-03-11 (article dated 2026-02-23)

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

US, DE1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026US and German store pages

US, DE1Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 2026

ColoursiThe maker's own colour names

White, Black1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026US page Color options White and Black

Black3Maker product pagede.roborock.com/products/roborock-saros-20Read 14 October 2026German page color is Schwarz

Suction and brushes

7 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.

31,000Pa1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026

36,000Pa1Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 2026

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.

12Owner's manualcdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdfRead 14 October 2026Packaging lists one Cyclone Airflow Zero-tangling Roller Brush

17Reviewvacuumwars.com/roborock-saros-20-reviewRead 14 October 2026Review says the DuoDivide main brush has a gap in the center to channel hair. One roll split into two halves counts as one. The manual lists the halves as main brushes

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".

Cyclone Airflow Zero-tangling Roller Brush2Owner's manualcdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdfRead 14 October 2026Robot bottom view: Cyclone Airflow Zero-tangling Roller Brush

DuoDivide Brush2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026

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

Not available

Yes1Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 20262Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026

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

12Owner's manualcdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdfRead 14 October 2026Robot bottom view: Anti-tangling Side Brush x 1

16Measurementvacuumwars.com/compare/robot-vacuums/roborock_saros_20Read 14 October 2026Compare page lists 1 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.

Not available

Yes2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026

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

Not available

Not available

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

Not available

30mm1Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 2026Published as 1.18 in (the global page says 3 cm). Needs manual enabling in the app2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026Dynamic carpet cleaning for pile up to 3 cm. Needs manual enabling in the app

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

300mL5Reviewvacuumwars.com/narwal-flow-2-reviewRead 14 October 2026Spec table: 300 mL onboard dustbin. The maker publishes no dustbin figure that was found

259mL3Maker product pagede.roborock.com/products/roborock-saros-20Read 14 October 2026Compare table shows 259 ml dust container

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

Not available

Not available

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

Not available

Yes4Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20FCC%20User%20Manual.41593654.pdfRead 14 October 2026Parts list names A6-6 Washable Filter

Navigation and obstacles

5 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 sensor2Owner's manualcdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdfRead 14 October 2026Robot front view lists a Radar Sensor beside the binocular vision and structured light sensors. The robot has no turret in the maker photos. The Vacuum Wars review says LiDAR combined with side structured-light sensors

Built-in lidar or ToF sensor2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026Maker names StarSight Autonomous System 2.0, a 3D ToF system. Vacuum Wars calls it embedded 3D ToF lidar and notes no top turret

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

NarMind Pro4Maker product pagede.narwal.com/products/narwal-flow-2-saugroboter-mit-selbstreinigungRead 14 October 2026NarMind Pro Autonomous System 2.0 on the German page, NarMind Pro intelligent perception on the US page

StarSight Autonomous System 2.02Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026

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

TwinAI Obstacle Avoidance (dual 1080P cameras) with side structured light1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026TwinAI Dodge Obstacle Avoidance with dual 1080P cameras. The German page adds side structured light

StarSight Autonomous System 2.0 with 3D sensors and RGB camera, VertiBeam lateral obstacle avoidance2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026Maker lists VertiBeam lateral obstacle avoidance under StarSight 2.0. Advanced 3D sensors and an RGB camera per the US page

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 pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026TwinAI Obstacle Avoidance and Unlimited Object Recognition. No object count is given

Yes1Maker product pageus.roborock.com/products/roborock-saros-20Read 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

3001Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 2026Published as 300+ types

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.

Yes4Maker product pagede.narwal.com/products/narwal-flow-2-saugroboter-mit-selbstreinigungRead 14 October 2026Flecken erkennen und nachreinigen: visual sensors detect heavy dirt and start a repeat clean automatically

Yes2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026

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

30mm2Owner's manualcdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdfRead 14 October 2026Manual: the robot can overcome single-step thresholds up to 30 mm. Above 30 mm Narwal recommends its Threshold Ramp. The US page claims 40 mm in a lab test

45mm2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 20264.5 cm single threshold such as a door sill (maker FAQ on the German page, 1.77 in on the US page)

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 pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Page says Tackles 1.57 in (40 mm) thresholds. Narwal standard lab data. The picture shows a stepped track. Vacuum Wars reads 40 mm as the tiered limit and 30 mm as the single limit

88mm1Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 2026Published as 3.46 in double layer (1.77 in + 1.69 in). Global page gives 8.8 cm. Test conditions: first step up to 4.5 cm, gap deeper than 12 cm and up to 14 cm, second step up to 4.3 cm2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 20268.8 cm double layer. 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

6 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.

Track1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026FlowWash Rolling Track Mop, a real-time self-cleaning track mop

Spinning pads2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026

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 pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026EdgeReach Mop Extension, the track mop extends to walls

Yes1Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 20262Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 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.

12mm1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Key features say 12 mm Mop Lifting, the German page and Narwal blog say 12 mm. The CarpetFocus text on the US page says the mop lifts 10 mm, the Vacuum Wars table says 10 mm. 12 mm is stored3Maker product pageeu.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Key features say 12 mm Mop Lifting4Maker product pagede.narwal.com/products/narwal-flow-2-saugroboter-mit-selbstreinigungRead 14 October 2026Automatic mop lifting: the mop lifts 12 mm on carpet

Not available

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

Yes2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 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.

12N1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Downward Pressure 7-12 N. The top of the range is stored

13N1Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 2026Up to 13 N. Needs Deep Cleaning for Heavy Dirt or Stains enabled in the app (global page footnote)2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 20268 N for ordinary mopping, 13 N when tough stains are detected

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

200rpm2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026200 RPM dual spinning mop

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

130mL1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Robot Built-in Water Tank 130 mL

69mL3Maker product pagede.roborock.com/products/roborock-saros-20Read 14 October 2026Compare table shows 69 ml

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

Not available

Not available

Base station

6 of 10 differ

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

Auto-empty and mop washing1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Auto Mop Washing with hot water and Auto Self Emptying into a base station dust bag

Auto-empty and mop washing2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 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 detergent1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Warm air drying and Auto-Detergent Dispensing are on the page. The drying temperature is 104 F on the US page and 60 C on the German page, so it is not stored

Hot-air drying, Auto detergent, Robot tank refill, Self-cleaning wash tray2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026Hot-air drying (55 C), automatic detergent dispenser, warm water tank refilling, dock self-cleaning with hot water

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

Water tanks1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Standard dock with clean and dirty water tanks. The compact station with Auto Refill and Drainage System is the plumbed variant row

Water tanks2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026Saros 20 with manual water replacement. The Saros 20 with Refill and Drainage System, sold in certain regions, is the plumbed variant row.

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

Bag1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Disposable dust bag

Bag4Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20FCC%20User%20Manual.41593654.pdfRead 14 October 2026Parts list names A9 Disposable Dust Bag

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

2.5L1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Page says 2.5 L Dust Bag. Vacuum Wars and a retailer list 2.4 L

2.7L6Measurementvacuumwars.com/compare/robot-vacuums/roborock_saros_20Read 14 October 2026Compare page lists bag capacity 2.7 l. No maker figure found

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.

120days1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Up to 120 days. Actual performance depends on the home environment. The manual FAQ gives 120 days for homes without pets and 90 days with pets

65days2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026Up to 65 days. Maker internal test. Actual intervals depend on usage habits and environment

Clean water tankiClean water tank in the base station.

4.5L6Reviewdeskmodder.de/blogRead 14 October 2026Review quotes the manufacturer datasheet: fresh water tank 4500 ml, standard dock

Not available

Dirty water tankiDirty water tank in the base station.

4L6Reviewdeskmodder.de/blogRead 14 October 2026Review quotes the manufacturer datasheet: dirty water tank 4000 ml, standard dock

Not available

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

100°C1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Page says 212 F Hot Water Mop Washing. The German page says 100 C water sterilizes the mop, pipes and water tank. The key features row says 113-176 F AI adaptive hot-water washing, so the 100 C figure is the highest the dock uses4Maker product pagede.narwal.com/products/narwal-flow-2-saugroboter-mit-selbstreinigungRead 14 October 2026100 C water sterilizes mop, pipes and water tank

100°C2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026Up to 100 C (212 F) at the clean water dispensers of the base, standard atmospheric pressure

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-20Read 14 October 2026Air at the base outlet during drying can reach 55 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.

7,000mAh1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Battery 7000 mAh, the maker's headline figure. The German page and the reviews give the same figure. The user manual gives a rated capacity of at least 6500 mAh, so 7000 mAh is stored as the headline figure, as the field help asks.

6,400mAh1Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 2026Published as 6,400 mAh lithium-ion4Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20FCC%20User%20Manual.41593654.pdfRead 14 October 2026Basic Parameters: 6400 mAh typical

Battery voltageiNominal pack voltage, such as 14.4 V.

14.4V2Owner's manualcdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdfRead 14 October 2026Specifications: nominal voltage 14.4 V

14.4V4Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20FCC%20User%20Manual.41593654.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.

65W2Owner's manualcdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdfRead 14 October 2026Specifications: robot rated power 65 W (max)

65W3Maker product pagede.roborock.com/products/roborock-saros-20Read 14 October 2026Compare table shows Nennleistung 65 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.

Not available

200min3Maker product pagede.roborock.com/products/roborock-saros-20Read 14 October 2026Compare table shows 200 min in quiet mode. The Australian store lists 180 min for a Saros 20 column and Vacuum Wars lists 190 min, the German page is the maker figure with a named 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.

180min2Owner's manualcdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdfRead 14 October 2026Specifications: charging takes about 3 hours at a normal ambient temperature

150min2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026Published as 2.5-hour fast charging. Stored as 150 minutes

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

Not available

Yes4Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20FCC%20User%20Manual.41593654.pdfRead 14 October 2026Manual says the robot resumes where it left off after charging when the battery runs low during a cleaning cycle

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.

ANarwal Flow 2

Activity	Noise (dB(A))
Vacuuming	60
Mopping only	56

Source6Reviewdeskmodder.de/blogRead 14 October 2026Review of 2026-04-20 quotes the manufacturer datasheet: 56 dBA mopping and 60 dBA vacuuming. Not measured by the reviewer. The US page says operating under 56.5 dB. Suction mode is not stated

BRoborock Saros 20

Suction mode	Noise (dB(A))
Balanced	63

Source3Maker product pagede.roborock.com/products/roborock-saros-20Read 14 October 2026Compare table shows 63 dB in balanced mode. Weighting and activity are not stated, so the row has no activity

Connectivity and app

5 of 9 differ

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

Wi-Fi 42Owner's manualcdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdfRead 14 October 2026Specifications: Wi-Fi protocol IEEE 802.11b/g/n

Wi-Fi 65Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20CE%20DE%20User%20Manual.42242813.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 GHz2Owner's manualcdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdfRead 14 October 2026Specifications: Wi-Fi frequency range 2412-2472 MHz, which is 2.4 GHz

2.4 GHz, 5 GHz5Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20CE%20DE%20User%20Manual.42242813.pdfRead 14 October 2026RF Specification table lists 2.4 GHz and 5 GHz. Vacuum Wars lists 2.4 GHz only. The maker manual is used

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

5.02Owner's manualcdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdfRead 14 October 2026Specifications: Bluetooth protocol BLE 5.0

5.45Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20CE%20DE%20User%20Manual.42242813.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.

Yes5Reviewvacuumwars.com/narwal-flow-2-reviewRead 14 October 2026Review says the robot is Matter-compatible

Yes1Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 2026

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

Amazon Alexa, Siri, Google Home1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Intelligent Assistant lists Siri, Alexa and Google Assistant. The page text says Alexa, Siri or Google Home

Amazon Alexa, Google Home, Siri Shortcuts1Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 2026Published as Matter protocol compatible with Siri Shortcuts, Alexa and Google Home

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

Yes1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Hey Nawa Voice Assistant

Yes1Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 2026Hello Rocky voice assistant

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

Narwal app1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Page section Precision Narwal app control

Roborock app4Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20FCC%20User%20Manual.41593654.pdfRead 14 October 2026Setup section 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.

Not available

Not available

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

Yes1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Key features list Video Call

Yes1Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 2026Video calling through the built-in RGB camera

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.

1.92kPa5Reviewvacuumwars.com/narwal-flow-2-reviewRead 14 October 2026Suction bench test: 1.92 kPa, average 0.99 kPa. Maximum power. Review last updated 2026-08-28

Not available

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

18CFM5Reviewvacuumwars.com/narwal-flow-2-reviewRead 14 October 2026Airflow 18 CFM, average 17 CFM

15CFM6Measurementvacuumwars.com/compare/robot-vacuums/roborock_saros_20Read 14 October 2026Vacuum Wars airflow test, anemometer, maximum power setting. Compare page and review both give 15 CFM7Reviewvacuumwars.com/roborock-saros-20-reviewRead 14 October 202615 CFM bench test at maximum power

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.

84%5Reviewvacuumwars.com/narwal-flow-2-reviewRead 14 October 2026Carpet deep clean test: removed 84 percent of embedded sand, average 78 percent

89%6Measurementvacuumwars.com/compare/robot-vacuums/roborock_saros_20Read 14 October 2026Vacuum Wars Carpet Deep Clean Test: sand embedded in medium-pile carpet, fixed time run on maximum power, dustbin weighed before and after7Reviewvacuumwars.com/roborock-saros-20-reviewRead 14 October 202689 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%5Reviewvacuumwars.com/narwal-flow-2-reviewRead 14 October 2026Flattened 2.5-inch pet hair test: 88 percent, average 82 percent

88%6Measurementvacuumwars.com/compare/robot-vacuums/roborock_saros_20Read 14 October 2026Vacuum Wars 2.5-inch flattened pet hair test: two consecutive runs on carpet, remaining hair weighed7Reviewvacuumwars.com/roborock-saros-20-reviewRead 14 October 202688 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.

38mm5Reviewvacuumwars.com/narwal-flow-2-reviewRead 14 October 2026Single-step threshold test: crossed 32 mm without problems and 38 mm on the second try

57mm7Reviewvacuumwars.com/roborock-saros-20-reviewRead 14 October 2026Vacuum Wars single-step test (starts at 19 mm, adds about 6 mm strips). The robot crossed 57 mm after some repositioning. Review last updated 2026-08-28

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

205Reviewvacuumwars.com/narwal-flow-2-reviewRead 14 October 2026Obstacle avoidance tests: 20 out of 24, average 16

177Reviewvacuumwars.com/roborock-saros-20-reviewRead 14 October 2026Standard and torture obstacle avoidance tests: avoided 17 out of 24 obstacles. The category average is 16.

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

Not available

96.53m²6Measurementvacuumwars.com/compare/robot-vacuums/roborock_saros_20Read 14 October 2026Compare page 1039 sq ft times 0.09290304. The review text says 1,038 sq ft, an estimate from battery efficiency of 1.44 min per percent and navigation efficiency of 0.67 m2 per min. Low-power setting without mopping on a fixed floor plan

Dimensions and weight

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

Round1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Round body seen in the maker photos

Round2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026Round body seen in maker photos. Retailer listings also say round

Robot widthiWidth of the robot from side to side.

351.2mm2Owner's manualcdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdfRead 14 October 2026Specifications: robot 351.2 x 363.5 x 95 mm. The US page gives 351.2 x 363.5 x 95 mm, the German page 363.5 x 351.2 x 95 mm. The first number is stored as width and the second as depth

350mm2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026Axis order differs between Roborock pages (353 x 350 here, 350 x 353 on the German and US pages). Width and depth are within 3 mm of each other

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

363.5mm2Owner's manualcdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdfRead 14 October 2026See width note

353mm2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 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.

95mm1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026Slim height 3.74 in, 95 mm. Robot dimensions list 95 mm

79.8mm2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026Robot dimensions 353 x 350 x 79.8 mm. The German page and retailers list 350 x 353 x 79.8 mm. Body height 79.8 mm, with 79.5 mm reachable by passive compression

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.

5kg(11 lb)2Owner's manualcdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdfRead 14 October 2026Specifications: robot weight 5.0 kg

5.05kg(11.1 lb)2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026

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.

Width360Depth450Height530mm(14.2 × 17.7 × 20.9 in)2Owner's manualcdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdfRead 14 October 2026Specifications: base station 450 x 360 x 530 mm, the US FAQ and German page list 360 x 450 x 530 mm. Stored as width 360, depth 450, height 530. The axis order is not stated4Maker product pagede.narwal.com/products/narwal-flow-2-saugroboter-mit-selbstreinigungRead 14 October 2026Standard station 360 x 450 x 530 mm. Compact station 410 x 433 x 281 mm for the plumbed variant

Width381Depth475Height488mm(15 × 18.7 × 19.2 in)2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026Dock 381 x 475 x 488 mm for the manual water replacement dock, width x depth x height as listed by the German page and retailers

Base station weightiDock without the robot and with empty tanks.

10kg(22 lb)2Owner's manualcdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdfRead 14 October 2026Specifications: base station weight 10 kg for the standard dock. A review quoting the datasheet gives 9.8 kg

10.54kg(23.2 lb)2Maker product pageglobal.roborock.com/pages/roborock-saros-20Read 14 October 2026Dock 10.54 kg for the manual water replacement version

Certifications

None of 1 known

FCC IDs

Not available

Not available

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

Not available

Not available

In the box

1 of 1 differ

In the boxiItems supplied with this exact model, verbatim.

Not available

Robot Vacuum, Multifunctional Dock, Dock Base, Power Cable, Rotating Mop Module (1 set), User Manual, Dust Bag, Mop Pad1Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 2026US page What's in the Box list3Maker product pagede.roborock.com/products/roborock-saros-20Read 14 October 2026German page lists robot, multifunctional dock, dock base, power cable, rotating mop module and user manual

Links

Not compared

Product page

us.narwal.com/products/flow-2-robot-vacuum-and-mop1Maker product pageus.narwal.com/products/flow-2-robot-vacuum-and-mopRead 14 October 2026

us.roborock.com/products/roborock-saros-201Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 2026

Spec sheet

Not available

Not available

Manual

cdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdf2Owner's manualcdn.shopify.com/s/files/1/0550/6200/3893/files/Narwal_Flow2_User_manual.pdfRead 14 October 2026

gl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20FCC%20User%20Manual.41593654.pdf4Owner's manualgl-files.roborock.com/product/center/images/Roborock%20Saros%2020%20FCC%20User%20Manual.41593654.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

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.

Not available

1year1Maker product pageus.roborock.com/products/roborock-saros-20Read 14 October 20261-year limited warranty on the US store page

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