Robot Vacuums · Head to head

eufy Omni S2 vs Narwal Flow

Full Robot Vacuums comparison in 2026

Updated October 2026
Data from Amazon and official Eufy and Narwal sites.
2026 verdict
For hands-off mopping in a large home, the Narwal Flow is the better robot vacuum and mop of this pair.
Narwal Flow
Winner
Narwal Flow
$999.99

Last recorded price

Buy on Amazon USA
It wins on runtime (200 minutes against 179), on a bigger 5 L water tank and on dual-band Wi-Fi, and its FlowWash track mop rinses itself while it scrubs. The eufy Omni S2 answers with more suction, 30,000 Pa against 22,000 Pa, a two year warranty against one, and a dock that doses detergent on its own. Both are Matter certified and reach every major smart home platform. Choose the Narwal Flow for a mostly hard-floor home that values mop quality and battery, and the eufy Omni S2 if you want the strongest suction and the longer warranty in this robot vacuum pair.
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Featureeufy Omni S2Narwal FlowWinner
Price$1499.99$999.99Narwal Flow
Warranty2 years1 yeareufy Omni S2
Battery Life179 minutes200 minutesNarwal Flow
Connectivity2.4 GHz WiFi, Bluetooth2.4 GHz WiFi, 5 GHz WiFi, BluetoothNarwal Flow
Suction Power30000Pa22000Paeufy Omni S2
Water Tank Capacity3L5LNarwal Flow
Rating4.44.4Tie
Auto RechargeYESYESTie
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterTie
Navigation TypeLaser (LiDAR)Laser (LiDAR)Tie
Obstacle DetectionYESYESTie
Cliff DetectionYESYESTie

What the differences mean

Water tank and detergent

The Narwal Flow carries a 5 L clean water tank against 3 L on the eufy Omni S2, so it goes longer between refills. The trade goes the other way on detergent: the eufy Omni S2 doses it automatically from the dock, while Narwal has you measure it into the clean water tank by hand.

Battery life

The Narwal Flow is rated for 200 minutes against 179 minutes on the eufy Omni S2, and charges in about three hours against four. In a large home that is the difference between finishing on one charge and taking a top-up.

Suction power

The eufy Omni S2 is rated at 30,000 Pa and the Narwal Flow at 22,000 Pa. Both are strong enough that owners describe clean floors, so this is a paper advantage unless your home is mostly thick carpet.

Wi-Fi bands

The Narwal Flow connects over both 2.4 GHz and 5 GHz, and the eufy Omni S2 is limited to 2.4 GHz. On a modern router that makes the Narwal the easier one to put on the network.

Height and dock footprint

The Narwal Flow is 95 mm tall and the eufy Omni S2 98 mm, so both clear most sofas. The bigger gap is the dock: the eufy station is 670 mm tall against 461 mm on the Narwal, and needs more clear space around it.

Warranty

The eufy Omni S2 carries a two year warranty and the Narwal Flow one year. On two machines that lean on a dock and a roller mop, that extra year is worth weighing.

Which one to buy if

Eufy

eufy Omni S2

6% OFF
Prime exclusive deal
$1499.99
$1599.99

Last recorded price

Buy on Amazon USA
  • + Warranty: 2 years
  • + Suction Power: 30000Pa
  • - Price: $1499.99 vs $999.99
  • - Battery Life: 179 minutes vs 200 minutes
Winner
Narwal

Narwal Flow

Prime exclusive deal
$999.99

Last recorded price

Buy on Amazon USA
  • + Price: $999.99
  • + Battery Life: 200 minutes
  • + Connectivity: 2.4 GHz WiFi, 5 GHz WiFi, Bluetooth
  • - Warranty: 1 year vs 2 years
  • - Suction Power: 22000Pa vs 30000Pa

What owners say

Owners of both flagships end up praising the same mop story: dried kitchen spills and muddy floors come up in a pass or two, and both groups say the robot needs less babysitting than the spinning-pad robots they left behind. eufy Omni S2 owners single out the roller mop for lifting stuck-on dirt and a bin that keeps its airflow after a week of nightly runs, but warn that the app and navigation can stumble on complex layouts, that the 98 mm body misses low furniture and that the dock is very large. Narwal Flow owners talk more about the anti-tangle roller and side brushes ending manual hair removal, quiet running around 60 dB and support that replaces parts without a fight, while their complaints cluster on carpet, which the app detects wrongly or cleans poorly, and on stairs during the first mapping run.

Price history compared

Every price change of both, in the same store, so the gap between the two lines is what one costs more than the other.

  • eufy Omni S2
  • Narwal Flow

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Frequently Asked Questions

Which is better overall: eufy Omni S2 or Narwal Flow?

The Narwal Flow, by a small margin. It has the longer battery, the larger water tank and dual-band Wi-Fi, and its self-rinsing track mop is its signature. The eufy Omni S2 is not outclassed: it has more suction, a two year warranty and a dock that doses detergent automatically, so buyers who value those win with the eufy.

What is the biggest difference between the eufy Omni S2 and the Narwal Flow?

The mop and how it is fed. The Narwal Flow rolls a track mop that rinses itself with hot water and draws from a 5 L tank, while the eufy Omni S2 uses a roller mop, a 3 L tank and a dock that dispenses detergent on its own.

How long does the battery last on each?

The Narwal Flow is rated for 200 minutes and recharges in about three hours, while the eufy Omni S2 is rated for 179 minutes and recharges in about four.

Do the eufy Omni S2 and the Narwal Flow work with Apple Home and Matter?

Yes to both. Both are Matter certified, so they join Apple Home, Samsung SmartThings and Home Assistant as well as Alexa and Google Home.

Who should buy the Narwal Flow?

Homes that are mostly hard floor, pet households with long hair, and anyone who wants the longer runtime and the bigger water tank over extra suction.

Who should buy the eufy Omni S2?

Buyers who want the strongest suction of the two, automatic detergent dosing, a two year warranty and a robot that will happily mop rugs and hard floors alike.

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