The robot combines powerful vacuuming, a full-width roller mop and a subtle fragrance system—but its £1,599/$1,599 list price raises the bar.
The Eufy Omni S2 is a robot vacuum and roller mop with a self-emptying, self-cleaning dock. The Ambient’s independent review found that its core cleaning system works well, but shoppers pay a premium for features that may not matter every day.
Its main floor-cleaning tool is a wide roller mop. The system continuously adds clean water to the roller and collects dirty water separately, helping reduce the chance of spreading grime across the floor. When the robot detects carpet, it lifts the mop by up to 5cm.
The dock stores clean and dirty water, cleaning solution and a three-litre dust bag. The Ambient says the bag should last about two months, though the dock’s filter still needs regular cleaning and occasional replacement. Eufy’s cleaning solution uses a proprietary container, so owners cannot simply substitute another cleaner.
Strong everyday cleaning
The Omni S2 has a listed 30,000Pa suction rating. In The Ambient’s testing, it removed flour from carpet in one cleaning run and picked up loose debris from hard floors without visible residue.
Hair handling was another strength. The reviewer spread human hair across carpet, and the robot collected it without leaving strands wrapped around the main brush.
The roller mop handled coffee, red wine, dried mud and solid debris well, generally after two passes. Dried ketchup was harder: two passes removed only part of the stain. After kitchen cleaner was added and the robot ran again, it removed most of what remained, while the Roborock Saros 20 performed better in the same test.
Edge cleaning was less impressive. The extending side brush left some debris behind during vacuuming, although running the robot again with the mop enabled produced a cleaner result.
Navigation is a practical plus
The Omni S2 uses a 3D time-of-flight sensor and an RGB camera to navigate. In The Ambient’s testing, it avoided fake pet mess, shoes and cables without becoming trapped or pushing obstacles around.
At 98mm high, it has no raised LiDAR turret and can fit beneath most sofas, cabinets and sideboards. Its measured operating noise was 61.2 decibels: clearly audible, but not unpleasantly loud.
The app supports whole-home, room and custom-zone cleaning. Users can adjust water flow, suction power and route intensity, choose one or two passes, and create no-go areas. However, the review found that furniture mapping had limited practical value, and the robot cannot mop without vacuuming.
That missing mop-only mode could matter in homes where floors need a quick wet clean but do not need another vacuum run. The robot offers combined vacuuming and mopping, or vacuuming alone, but not mopping by itself.
Fragrance is optional—and ongoing
The unusual extra is a fragrance pod beneath the robot’s top cover. A diffuser releases scent as the Omni S2 cleans, and each pod is designed to last up to three months.
The Ambient describes the fragrance as gentle and pleasant rather than powerful. Replacement packs cost £24.99, and only Eufy’s pods work with the system. That creates a continuing consumables cost, while the scent itself is unlikely to improve cleaning.
The listed price is £1,599 in the UK and $1,599 in the U.S. The supplied review does not establish current stock, retailer availability or sale pricing, so shoppers should check those details before ordering.
At full list price, the Omni S2 is difficult to recommend without qualification. Its suction, roller mop, hair handling and navigation are genuinely strong, but the fragrance system is a luxury, the mop-only omission is frustrating, and rivals may offer more flexible hardware.
The better buying move is to consider the Omni S2 when it is substantially discounted, especially if excellent everyday cleaning matters more than fragrance or advanced mop controls. At its listed price, waiting for a sale is the sensible choice.