Robot Vacuums · Head to head

Narwal Flow vs Shark PowerDetect ThermaCharged RV2920XE

Full Robot Vacuums comparison in 2026

Updated September 2026
Data from Amazon and official Narwal and Shark sites.
2026 verdict
The Shark PowerDetect ThermaCharged RV2920XE undercuts the Narwal Flow on price and backs it with a longer 2-year warranty, but the Narwal Flow wins this robot vacuum comparison on owner rating, battery life and smart home reach, since the Shark only connects to Google Home, Alexa and Home Assistant while the Narwal Flow is Matter certified and adds Apple Home and Samsung SmartThings. Both wash their mop pads with heated water and dry them automatically, empty their own dustbin, use laser navigation with multi-room mapping and no-go zones, and clean carpet. Buyers who want the lower price and longer warranty should consider the Shark PowerDetect ThermaCharged RV2920XE; anyone who wants the higher-rated machine with broader ecosystem support should pick the Narwal Flow.
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FeatureNarwal FlowShark PowerDetect ThermaCharged RV2920XEWinner
Price$999.99$1099.95Narwal Flow
Rating4.54.3Narwal Flow
Warranty1 year2 yearsShark PowerDetect ThermaCharged RV2920XE
Battery Life200 minutes180 minutesNarwal Flow
Connectivity2.4 GHz WiFi, 5 GHz WiFi, Bluetooth2.4 GHz WiFiNarwal Flow
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterGoogle Home, Alexa, Home AssistantNarwal Flow
Auto RechargeYESYESTie
Navigation TypeLaser (LiDAR)Laser (LiDAR)Tie
Obstacle DetectionYESYESTie
Cliff DetectionYESYESTie
Multi-Room MappingYESYESTie
No-Go ZonesYESYESTie

Frequently Asked Questions

Which is better overall: Narwal Flow or Shark PowerDetect ThermaCharged RV2920XE?

The Narwal Flow wins on owner rating, battery life and smart home platform support. The Shark PowerDetect ThermaCharged RV2920XE costs less and carries a longer warranty.

What is the biggest difference between Narwal Flow and Shark PowerDetect ThermaCharged RV2920XE?

Ecosystem reach. The Shark PowerDetect ThermaCharged RV2920XE supports Google Home, Alexa and Home Assistant only, while the Narwal Flow is Matter certified and also reaches Apple Home and Samsung SmartThings.

Which robot has the longer warranty?

The Shark PowerDetect ThermaCharged RV2920XE, covered for 2 years versus 1 year on the Narwal Flow.

Do both robots wash their own mop pads with hot water?

Yes, both have a dock that washes the mop pad with heated water and dries it automatically, tying on that feature.

Who should buy the Shark PowerDetect ThermaCharged RV2920XE?

Choose the Shark PowerDetect ThermaCharged RV2920XE for the lower price and the longer warranty if you only need Google Home, Alexa or Home Assistant.

Who should buy the Narwal Flow?

Choose the Narwal Flow for the higher owner rating, longer battery life and the broadest smart home support, including Apple Home and Matter.

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