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One of the best household purchase decisions I've ever made.
I recently researched and compared a myriad of robotic vacuum/mop combos -- it was a big purchasing decision, for me. The new Eufy Omni S2 is the hands-down winner for our household. So many features, it's a challenge to describe them all.
Household: ~2,300sf, 2 levels. Hardwood, wall2wall carpet, tile, some area rugs (the Omni S2 avoids fringe, btw). Occupants: 2 senior adults who find housework tedious, 2 hairy dogs, 1 very messy bird, visiting grandkids.
Appearance: the base unit is taller (3') and slimmer than others; gives a contemporary, unobtrusive look. An easy-to-see LED display on top shows key operating functions.
A circular blue light is visible beneath the translucent grey fresh water tank. Bubbles effervesce from it while it's electrolyzing the water: 99.9% effective at eliminating germs. The unique cyclonic dust bin/filter is 95% effective at eliminating allergens including pet dander and dust mites. The Eufy Omni S2 doesn't just "clean", it helps sterilize surfaces and improve air quality within your home.
The robot is square, with rounded edges; combined with 2 beefy side brushes and an extendable mop, it cleans corners and edges far better than round models I tried. It has a translucent removable cover; an ambient blue light beneath it illuminates the dust bin in action (can be turned off if you prefer. I find it rather fascinating).
The 3D MatrixEye 2.0 navigation detects and recognizes more small items than many other high-end nav systems I've tried. Even dodges pet accidents: a huge plus for me, after a prior robovac erred that way (why I was ISO a new one. Ugh). It quickly individually mapped both house levels, refines mapping as it goes. The app is fairly intuitive, offers lots of features for personal cleaning preferences and needs.
The robot auto-lifts to handle thresholds and carpet pile up to ~2". At ~3" tall, it gets to areas others didn't -- I was surprised to see it glide beneath my low-clearance bathroom vanity.
Vacuum: the DualSpin main brush lifts even embedded hair, zero wrap. 30K Pa gives incredible suction. My 15 yr old carpet looks rejuvenated. The multi-cone cyclonic dust and debris system collects even fine particulates, including the allergens mentioned above. Returns to dock to self-empty all into a disposable 5-ply, hypoallergenic dust bag (accessed below the fresh water tank) with a baffle design that helps prevent clogging.
Mop: the mop head looks like a paint roller, vs flat circular pads. 15N pressure tackles even dried-on spills. Constantly self-cleaning during operation via an onboard water tank and HydroJet technology, so dirt doesn't just build up on the roller. Returns to base as needed for hot-water washing and hot-air drying. Wash/dry time can take up to an hour, but it nixes bacteria, musty smells. The base holds a disposable insert that adds cleaning fluid to the fresh water tank if/as desired. Mop head extends to one side to clean edges, even under overhangs. Lifts to avoid wetting carpet.
Only thing "missing": a retractable mop head shield to further protect carpet, which some robovacs have. Not an issue for me; just one of only 2 small improvements I might add to the Omni S2. The other: I'd appreciate inclusion of a more comprehensive hardcopy manual, but tutorials are easily available online.
Very quiet operation even while self-emptying/cleaning. The dogs don't even bother to bark at it. Has a DND mode.
A luxe added touch: the robot accepts an essential oil pod that diffuses scent during operation, subtle but enjoyable. Comes with a supply of 3, very nicely presented, each lasts ~60days, refills can be ordered.
Easy to maintain, though there are more "moving parts" than very basic models. The app alerts you to disposables (bags, filters, etc) reaching the end of their lifespan.
I'm so fond of my Eufy Omni S2 that I've named it. That reminds me, it integrates with Siri, Alexa, Google Home. It's not inexpensive -- but the high quality is there. Eufy (an affiliate of Anker) also has stellar Customer Service, in my experience: prompt, courteous; sincere dedication to full customer satisfaction.
The Omni S2 knocks at least two of my least favorite chores off my list, and is better at them than I ever was. One of the best household decisions I've ever made. "Treat yo'self."
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Reviewed in the United States on May 11, 2026