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Robot Vacuums · Head to head

MOVA E40 Ultra vs Roborock Saros 20

Full Robot Vacuums comparison in 2026

Updated October 2026
Data from Amazon and official MOVA and Roborock sites.
2026 verdict
Fewer trips to empty and refill the dock, plus a three-year warranty, make the MOVA E40 Ultra the better buy of these two robot vacuums.
MOVA E40 Ultra
Winner
MOVA E40 Ultra
C$448.99
Buy on Amazon Germany
It pairs a 260 minute battery with a 4.5 L water tank and a 3.2 L dust bag, and it is the better reviewed of the two. The Roborock Saros 20 is the more powerful machine, with 36000 Pa of suction against 19000 Pa, a slim 79.8 mm body, 5 GHz Wi-Fi, a built-in detergent dispenser and Matter, Apple Home and SmartThings support that the MOVA lacks. Both docks empty the bin and wash and dry the mops. Pick the MOVA E40 Ultra for long, low-maintenance runs and a longer warranty, and the Roborock Saros 20 for maximum suction, low furniture or an Apple Home or SmartThings setup.
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FeatureMOVA E40 UltraRoborock Saros 20Winner
PriceC$448.99$1479.99MOVA E40 Ultra
Rating4.34.2MOVA E40 Ultra
Warranty3 years1 yearMOVA E40 Ultra
Battery Life260 minutes200 minutesMOVA E40 Ultra
IntegrationsGoogle Home, Alexa, Home AssistantGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, MatterRoborock Saros 20
Suction Power19000Pa36000PaRoborock Saros 20
Water Tank Capacity4.5L4LMOVA E40 Ultra
Dock Dustbin Capacity3.2L2.5LMOVA E40 Ultra
Auto RechargeYESYESTie
Connectivity2.4 GHz WiFi2.4 GHz WiFi, 5 GHz WiFiTie
Navigation TypeLaser (LiDAR)Laser (LiDAR)Tie
Obstacle DetectionYESYESTie

What the differences mean

Suction

The Roborock Saros 20 is rated at 36000 Pa and the MOVA E40 Ultra at 19000 Pa. On deep carpet and embedded pet hair the Roborock has far more pull, while on hard floors both are strong enough for daily cleaning.

Runtime and tanks

The MOVA E40 Ultra runs 260 minutes against 200, and carries a 4.5 L water tank against 4 L and a 3.2 L dust bag against 2.5 L. It covers more ground between charges and you refill and empty it less often.

Smart home

The Roborock Saros 20 works with Matter, Apple Home and SmartThings on top of Alexa, Google Home and Home Assistant. The MOVA E40 Ultra covers Alexa, Google Home and Home Assistant only.

Detergent

The Roborock Saros 20 dock doses cleaning solution by itself. On the MOVA E40 Ultra the automatic detergent dispenser is sold separately.

Warranty

The MOVA E40 Ultra carries three years against one year for the Roborock Saros 20, a real difference on a machine with this many moving parts.

Which one to buy if

Winner
MOVA

MOVA E40 Ultra

Prime exclusive deal
C$448.99
Buy on Amazon Germany
  • + Price: C$448.99
  • + Rating: 4.3
  • + Warranty: 3 years
  • - Integrations: Google Home, Alexa, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • - Suction Power: 19000Pa vs 36000Pa
Roborock

Roborock Saros 20

8% OFF
Prime exclusive deal
$1479.99
$1599.99
Buy on Amazon USA
  • + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
  • + Suction Power: 36000Pa
  • - Price: $1479.99 vs C$448.99
  • - Rating: 4.2 vs 4.3

What owners say

Owners of both robots praise fast mapping and quiet running. MOVA E40 Ultra owners describe a large home mapped in minutes, steady pet hair pickup and a station that washes pads, empties the bin and refills mid-job, and they talk about value; their complaints are mop pads detaching during a run, side-brush and motor failures within months and slow support escalation. Roborock Saros 20 owners single out an app that splits and labels rooms by itself, a low profile that finally cleans under their furniture, reliable avoidance of cables and pets and a camera for checking on pets, while they grumble that no detergent comes in the box, that some thresholds stop it and that deep-clean runs drain the battery faster.

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.

  • MOVA E40 Ultra
  • Roborock Saros 20

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Frequently Asked Questions

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

The MOVA E40 Ultra, for most buyers. It has a longer battery, bigger tanks, a three-year warranty and is the better reviewed of the two. The Roborock Saros 20 wins on suction and smart home support.

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

Suction against endurance. The Roborock Saros 20 is rated at 36000 Pa against 19000 Pa, while the MOVA E40 Ultra runs 260 minutes against 200 and holds more water and dust.

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

Only the Roborock Saros 20, which supports Matter, Apple Home and SmartThings. The MOVA E40 Ultra works with Alexa, Google Home and Home Assistant.

Which has the longer warranty?

The MOVA E40 Ultra, with three years. The Roborock Saros 20 comes with one year.

Who should buy the MOVA E40 Ultra?

Owners of larger homes who want long runs, big tanks and a three-year warranty, and who use Alexa, Google Home or Home Assistant.

Who should buy the Roborock Saros 20?

Buyers who want the most suction, a slim robot for low furniture, automatic detergent dosing and support for Apple Home, SmartThings or Matter.

Full comparison table

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