eufy Omni S2 vs iRobot Roomba Plus 505

The eufy Omni S2 wins overall, with a longer 2-year warranty, a higher owner rating, roughly double the runtime at 260 minutes against 120, and far stronger suction at 30000Pa against 7000Pa. The iRobot Roomba Plus 505's main advantage is a lower price.

Suction and battery life. The eufy Omni S2 is rated for 30000Pa of suction and up to 260 minutes per charge, while the iRobot Roomba Plus 505 is rated for 7000Pa and 120 minutes.

Yes. The eufy Omni S2 generates electrolyzed water for its mop on top of a hot-water wash, and its dock feeds from a 3L water tank, while both robots share auto-mop-washing, auto-mop-drying and self-emptying as baseline features.

Yes. The eufy Omni S2 and the iRobot Roomba Plus 505 both support Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant and Matter, so smart home compatibility does not favor either one.

Buyers who want the strongest suction and longest runtime in this comparison, along with a longer warranty and a sanitizing-focused mop, and are willing to pay more for it.

Buyers who want the same navigation and smart home support at a lower price and don't need the eufy Omni S2's extra battery life, suction or electrolyzed-water mopping.