iRobot Roomba 505X vs MOVA E40 Ultra (2026): Which to Buy?

Updated September 2026

Data from Amazon and official iRobot and MOVA sites.

2026 verdict

Price, rating and a three-year warranty all favor the MOVA E40 Ultra over the iRobot Roomba 505X, and it also runs longer per charge, about 260 minutes against 120.

Winner

MOVA E40 Ultra

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Suction is published on the MOVA E40 Ultra at 19,000Pa (iRobot does not publish a figure for the 505X), and its MaxiReach mop extends up to 4cm into corners other robots miss. The iRobot Roomba 505X answers with wider smart-home reach, adding Apple HomeKit, Samsung SmartThings, Home Assistant and Matter plus 5GHz WiFi and dedicated cliff detection, a safety feature the MOVA's spec sheet does not list; both robots otherwise self-empty, wash and dry their mop pads automatically and share the same LiDAR mapping and no-go zones. Worth knowing before buying the MOVA E40 Ultra: several owners report mop pads detaching mid-run and a handful describe side-brush or motor failures within the first year, issues the iRobot Roomba 505X's own feedback does not raise. Buyers chasing the lowest price, the longest runtime and the longest warranty should pick the MOVA E40 Ultra; buyers who want the broadest smart-home support and cliff detection should pick the iRobot Roomba 505X instead.

iRobot

iRobot Roomba 505X

21% OFF

$789.95

$999.99

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Winner

MOVA

MOVA E40 Ultra

Price unavailable right now

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Feature	iRobot Roomba 505X	MOVA E40 Ultra	Winner
Rating	4.2	4.3	MOVA E40 Ultra
Warranty	1 year	3 years	MOVA E40 Ultra
Battery Life	120 minutes	260 minutes	MOVA E40 Ultra
Connectivity	2.4 GHz WiFi, 5 GHz WiFi	2.4 GHz WiFi	iRobot Roomba 505X
Integrations	Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter	Google Home, Alexa, Home Assistant	iRobot Roomba 505X
Cliff Detection	YES	NO	iRobot Roomba 505X
Auto Recharge	YES	YES	Tie
Navigation Type	Laser (LiDAR)	Laser (LiDAR)	Tie
Obstacle Detection	YES	YES	Tie
Multi-Room Mapping	YES	YES	Tie
No-Go Zones	YES	YES	Tie
Carpet Cleaning	YES	YES	Tie

iRobot

iRobot Roomba 505X

21% OFF

$789.95

$999.99

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+ Connectivity: 2.4 GHz WiFi, 5 GHz WiFi
+ Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter
+ Cliff Detection: YES
- Rating: 4.2 vs 4.3
- Warranty: 1 year vs 3 years

Winner

MOVA

MOVA E40 Ultra

Price unavailable right now

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+ Rating: 4.3
+ Warranty: 3 years
+ Battery Life: 260 minutes
- Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, 5 GHz WiFi
- Integrations: Google Home, Alexa, Home Assistant vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter

Frequently Asked Questions

Which is better overall: the iRobot Roomba 505X or the MOVA E40 Ultra?

The MOVA E40 Ultra wins overall on price, owner rating, warranty and runtime. The iRobot Roomba 505X answers with broader smart-home support and dedicated cliff detection.

What is the biggest difference between the iRobot Roomba 505X and the MOVA E40 Ultra?

Smart-home integrations and safety sensors. The iRobot Roomba 505X supports Apple HomeKit, Samsung SmartThings, Home Assistant, Matter and cliff detection, none of which the MOVA E40 Ultra's spec sheet confirms.

Does the MOVA E40 Ultra have any reported reliability issues?

Yes, some owners report the mop pads detaching mid-run, and a smaller number describe side-brush or motor failures within the first year. Support has reportedly replaced units for affected buyers.

Which one runs longer on a single charge?

The MOVA E40 Ultra, rated for about 260 minutes per charge against roughly 120 minutes for the iRobot Roomba 505X.

Who should buy the MOVA E40 Ultra?

Buyers who want the lowest price, the longest runtime and warranty here, and don't need Apple HomeKit, Samsung SmartThings, Matter or dedicated cliff detection.

Who should buy the iRobot Roomba 505X?

Buyers who want the widest smart-home integration list, 5GHz WiFi and dedicated cliff detection, and are willing to pay more and accept a shorter runtime for it.

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