Robot Vacuums · Head to head

Narwal Flow vs Roborock Saros 20 Sonic

Full Robot Vacuums comparison in 2026

Updated September 2026
Data from Amazon and official Narwal and Roborock sites.
2026 verdict
The Roborock Saros 20 Sonic out-suctions the Narwal Flow by a wide margin, 36,000 Pa against 22,000, and its dock holds slightly more dust between empties, but the Narwal Flow wins this robot vacuum comparison overall on price, owner rating, battery life and a larger onboard water tank for mopping. Connectivity, ecosystem integrations, navigation, obstacle and cliff detection, carpet handling and the self-washing, self-drying, self-emptying mop routine all tie between them. Buyers chasing maximum suction on carpet should lean toward the Roborock Saros 20 Sonic; anyone who wants the better-reviewed, longer-running machine at a lower price should choose the Narwal Flow.
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FeatureNarwal FlowRoborock Saros 20 SonicWinner
Price$999.99$1499.99Narwal Flow
Rating4.54.2Narwal Flow
Battery Life200 minutes190 minutesNarwal Flow
Suction Power22000Pa36000PaRoborock Saros 20 Sonic
Water Tank Capacity5L4LNarwal Flow
Dock Dustbin Capacity2.5L2.7LRoborock Saros 20 Sonic
Warranty1 year1 yearTie
Auto RechargeYESYESTie
Connectivity2.4 GHz WiFi, 5 GHz WiFi, Bluetooth2.4 GHz WiFi, 5 GHz WiFi, BluetoothTie
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

Frequently Asked Questions

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

The Narwal Flow wins on price, owner rating, battery life and water tank capacity. The Roborock Saros 20 Sonic pulls far stronger suction and its dock holds slightly more dust.

What is the biggest difference between Narwal Flow and Roborock Saros 20 Sonic?

Suction power. The Roborock Saros 20 Sonic reaches 36,000 Pa versus 22,000 Pa on the Narwal Flow, its biggest edge in this comparison.

Which robot runs longer per charge?

The Narwal Flow, rated for about 200 minutes versus 190 minutes on the Roborock Saros 20 Sonic, a small but real gap.

Do both robots support the same smart home platforms?

Yes, both are Matter certified and reach Google Home, Alexa, Apple Home, Samsung SmartThings and Home Assistant, tying on ecosystem support.

Who should buy the Roborock Saros 20 Sonic?

Choose the Roborock Saros 20 Sonic if you want the strongest possible suction for carpet and thick rugs and its slightly larger dock dustbin.

Who should buy the Narwal Flow?

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

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