Robot Vacuums · Head to head

MOVA E40 Ultra vs Roborock Saros 20 Flow

Full Robot Vacuums comparison in 2026

Updated October 2026
Data from the official MOVA and Roborock sites.
2026 verdict
For raw cleaning power and smart home reach, the Roborock Saros 20 Flow is the robot vacuum to pick over the MOVA E40 Ultra in this comparison.
Roborock Saros 20 Flow
Winner
Roborock Saros 20 Flow
$1499.99$1699.9912% OFF
Buy on Amazon USA
It is rated at 36,000 Pa against 19,000 Pa, and Matter brings it into Apple Home, SmartThings and Home Assistant on top of Alexa and Google Home, none of which the MOVA E40 Ultra supports. The MOVA E40 Ultra answers with a three-year warranty against one and published tank and bin figures the Roborock Saros 20 Flow leaves unlisted, though the Roborock also runs longer, at up to 301 minutes against 260. Choose the MOVA E40 Ultra when warranty length and a predictable refill schedule matter most, and the Roborock Saros 20 Flow when suction, runtime and platform support decide it.
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FeatureMOVA E40 UltraRoborock Saros 20 FlowWinner
Rating4.34.0MOVA E40 Ultra
Warranty3 years1 yearMOVA E40 Ultra
Battery Life260 minutes301 minutesRoborock Saros 20 Flow
IntegrationsGoogle Home, Alexa, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterRoborock Saros 20 Flow
Suction Power19000Pa36000PaRoborock Saros 20 Flow
Auto RechargeYESYESTie
Connectivity2.4 GHz WiFi2.4 GHz WiFiTie
Navigation TypeLaser (LiDAR)Laser (LiDAR)Tie
Obstacle DetectionYESYESTie
Multi-Room MappingYESYESTie
No-Go ZonesYESYESTie
Carpet CleaningYESYESTie

What the differences mean

Suction power

The Roborock Saros 20 Flow is rated at 36,000 Pa against 19,000 Pa for the MOVA E40 Ultra, a gap you feel on carpet and against pet hair. The MOVA E40 Ultra still handles everyday hard-floor debris, but it leans on its top mode more often in a hairy home.

Runtime

The Roborock Saros 20 Flow is rated for up to 301 minutes on a charge against 260 for the MOVA E40 Ultra, so it covers roughly 40 more minutes of cleaning before it has to return to the dock.

Warranty

The MOVA E40 Ultra carries a three-year warranty where the Roborock Saros 20 Flow offers one. For a robot that lives on the floor and runs daily, that longer cover is the practical edge of the MOVA E40 Ultra.

Water and dust capacity

The MOVA E40 Ultra publishes a 4.5 L clean water tank and a 3.2 L dust bag rated for up to 75 days, while the Roborock Saros 20 Flow does not publish its water tank or dock bin. If planning around refills matters, the MOVA E40 Ultra is the one that tells you the numbers.

Smart home support

The Roborock Saros 20 Flow reaches every major platform through Matter, including Apple Home, SmartThings and Home Assistant, on top of Alexa and Google Home. The MOVA E40 Ultra stops at Alexa, Google Home and a community Home Assistant integration, with no Matter, Apple Home or SmartThings.

Body height

The Roborock Saros 20 Flow is 89.8 mm tall and fits under low sofas and beds; the MOVA E40 Ultra does not publish its dimensions, so the fit depends on the photos and the space you can give the dock.

Which one to buy if

MOVA

MOVA E40 Ultra

Prime exclusive deal
Currently unavailable on Amazon Germany
See on Amazon Germany
  • + Rating: 4.3
  • + Warranty: 3 years
  • - Battery Life: 260 minutes vs 301 minutes
  • - Integrations: Google Home, Alexa, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
Winner
Roborock

Roborock Saros 20 Flow

12% OFF
Prime exclusive deal
$1499.99
$1699.99
Buy on Amazon USA
  • + Battery Life: 301 minutes
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • + Suction Power: 36000Pa
  • - Rating: 4.0 vs 4.3
  • - Warranty: 1 year vs 3 years

What owners say

MOVA E40 Ultra owners lean on value and quietness: many describe it as easy to set up, quiet enough to run while they read or work, and quick to map an average home. Multi-dog households praise its pickup of pet hair for the money, and the station habit of returning to wash the pads, empty the bin and refill without being asked is what convinces them it earns its place. The complaints are consistent: mop pads that come off mid-run, a cluster of early side-brush and motor failures, and support that can be slow to escalate.

Frequently Asked Questions

Which is better overall: MOVA E40 Ultra or Roborock Saros 20 Flow?

The Roborock Saros 20 Flow, on cleaning power and connectivity. It is rated at 36,000 Pa against 19,000 Pa and its Matter support reaches Apple Home, SmartThings and Home Assistant. The MOVA E40 Ultra is the better value choice if you want a longer warranty and published tank and bin sizes.

What is the biggest difference between the MOVA E40 Ultra and the Roborock Saros 20 Flow?

Suction and ecosystem. The Roborock Saros 20 Flow is rated at 36,000 Pa and works with every major platform through Matter, while the MOVA E40 Ultra is rated at 19,000 Pa and stops at Alexa, Google Home and a community Home Assistant integration.

Does the MOVA E40 Ultra run longer than the Roborock Saros 20 Flow?

No. The MOVA E40 Ultra is rated for 260 minutes on a charge, while the Roborock Saros 20 Flow is rated for up to 301 minutes.

Do the MOVA E40 Ultra and the Roborock Saros 20 Flow work with Apple Home?

Only the Roborock Saros 20 Flow does, through Matter. The MOVA E40 Ultra supports Alexa and Google Home and is not Matter certified, so it does not appear in the Apple Home or SmartThings apps.

Who should buy the MOVA E40 Ultra?

Buyers who want the full station experience at less money, a long warranty, and a robot that publishes its tank and bin sizes. The MOVA E40 Ultra suits hard-floor homes that want hands-off maintenance without flagship suction.

Who should buy the Roborock Saros 20 Flow?

Homes with carpet and shedding pets that need higher suction, and smart homes built on Apple Home, SmartThings or Home Assistant. The Roborock Saros 20 Flow handles a mixed floor and a mixed ecosystem.

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