Robot Vacuums · Head to head

Narwal Flow vs Roborock Saros 20

Full Robot Vacuums comparison in 2026

Updated October 2026
Data from Amazon and official Narwal and Roborock sites.
2026 verdict
Between the loudest suction number and the better reviewed machine, the Narwal Flow still wins this flagship comparison on price and owner rating.
Narwal Flow
Winner
Narwal Flow
$999.99

Last recorded price

Buy on Amazon USA
It also holds a larger 5 L water tank for mopping runs and reaches the same six smart home platforms as its rival. The Roborock Saros 20 brings a real strength of its own: 36000 Pa of suction against 22000, a real edge on carpet and thick rugs, in a slim 79.8 mm body that slips under low furniture. Both empty, wash and dry themselves at the dock, run about 200 minutes per charge, and reach Matter, Apple Home and Home Assistant. Choose the Roborock Saros 20 if maximum suction on carpet is the priority and you're willing to pay more for it; choose the Narwal Flow for the lower price, the better reviews and more water capacity for mopping.
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FeatureNarwal FlowRoborock Saros 20Winner
Price$999.99$1599.99Narwal Flow
Rating4.44.2Narwal Flow
Suction Power22000Pa36000PaRoborock Saros 20
Water Tank Capacity5L4LNarwal Flow
Warranty1 year1 yearTie
Battery Life200 minutes200 minutesTie
Auto RechargeYESYESTie
Connectivity2.4 GHz WiFi, 5 GHz WiFi, Bluetooth2.4 GHz WiFi, 5 GHz WiFiTie
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

Suction power

The Roborock Saros 20 pulls 36000 Pa against 22000 Pa on the Narwal Flow, a gap that matters most on carpet and thick rugs.

Body height

The Roborock Saros 20 stands 79.8 mm tall, low enough to slide under sofas and beds the Narwal Flow's 95 mm body cannot always clear.

Water tank

The Narwal Flow holds a 5 L clean water tank against 4 L on the Roborock Saros 20, so it needs refilling less often during a long mopping run.

Mop cleaning solution

Roborock ships the Saros 20 with no cleaning solution at all, not even a sample, so owners buy a robot-safe detergent separately; Narwal includes a bottle of its own detergent with the Flow.

Which one to buy if

Winner
Narwal

Narwal Flow

Prime exclusive deal
$999.99

Last recorded price

Buy on Amazon USA
  • + Price: $999.99
  • + Rating: 4.4
  • + Water Tank Capacity: 5L
  • - Suction Power: 22000Pa vs 36000Pa

What owners say

Owners of both flagships describe a genuinely hands-off machine, but for different reasons. Narwal Flow owners single out the FlowWash track mop for lifting dried spills and greasy kitchen marks that a spinning pad used to smear, and describe running it quietly enough to leave on while they work, though a few report the app mislabelling bare floor as carpet and recommend blocking off stairs during the first map. Roborock Saros 20 owners praise the ultra-slim body for finally cleaning under furniture their old robot could not reach, and call the mapping and app some of the best they have used, but the most common complaint by far is that no mop cleaning solution ships in the box, even at this price, and a few mention it refusing certain raised thresholds.

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.

  • Narwal Flow
  • Roborock Saros 20

Loading price history...

Frequently Asked Questions

Which is better overall: Narwal Flow or Roborock Saros 20?

The Narwal Flow wins on price, owner rating and water tank capacity. The Roborock Saros 20 counters with much stronger suction and a slimmer body.

What is the biggest difference between Narwal Flow and Roborock Saros 20 (some search this as narwal flow 2 vs roborock saros 20)?

Suction power. The Roborock Saros 20 pulls 36000 Pa versus 22000 Pa on the Narwal Flow, a large gap that matters most on carpet and thick rugs.

Do both robots empty, wash and dry themselves?

Yes, both docks empty the robot, wash the mop pads and dry them automatically, with no manual mop cleaning required.

Which robot holds more water for mopping?

The Narwal Flow, with a 5 liter clean water tank versus 4 liters on the Roborock Saros 20.

Who should buy the Roborock Saros 20?

Choose the Roborock Saros 20 if maximum suction on carpet and rugs is your priority and you're willing to pay more for it.

Who should buy the Narwal Flow?

Choose the Narwal Flow for the lower price, the higher owner rating, and more water capacity for mopping runs.

Full comparison table

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