Eufy Omni S1 Pro
This is the Eufy Omni S1 Pro, and honestly, it looks like something straight out of the future. But it’s not just about looks; it’s easily one of the most advanced robot vacuums I’ve tested so far. The D-shaped design seems like it should help with corners, but it still misses some dirt in tight spots; round bots sometimes do a better job there.
What really makes this one stand out is the mopping. Instead of dual spinning pads like other robot mops, it uses one long rotating mop roller that spins across the floor at around 170 RPM, applying steady pressure for a deeper clean. It scrubs instead of just dragging moisture, and it shows in the results; my floors looked noticeably cleaner after each run. The best part? It automatically washes the mop roller with clean water and then dries it using hot air at around 55°C. I didn’t have to deal with touching anything gross or rinsing dirty pads myself, which made the whole experience feel way more hands-off.
PROS:
- Excellent mopping with self-cleaning roller
- Top-notch obstacle avoidance
- Lifts mop on carpets and boosts suction
- Strong 8000Pa suction
CONS:
- Misses corners despite D-shape
- Basic smart home support
- No mop-only mode
Inside The Box
Inside, you get the robot itself, which is already pre-installed with the mop and roller brush. There’s the massive all-in-one base station that handles charging, self-cleaning, water refilling, and hot air drying. It also comes with two water tanks, one for clean water and one for dirty, both already placed inside the base. You also get an extra mopping cloth, a small cleaning brush, a dust bag pre-installed in the base, and one spare dust bag. Everything was packed really well, and setup only took a few minutes; it was basically plug-and-play.
Suction Power and Vacuuming Performance
While the mopping on the Eufy Omni S1 Pro is absolutely great, the vacuuming side is more average. It offers 8,000Pa of suction, which is impressive on paper, and it uses two side brushes. one on each side, which is less common and helpful for pulling in debris from both directions.
In open spaces, carpets, and area rugs, it did a solid job. Suction felt consistent, and it picked up dust, crumbs, and pet hair with no problem. Even compared to vacuums rated at 11,000 or 12,000Pa, I didn’t see a major difference in everyday cleaning. For most homes, 8,000Pa is more than enough.
Mop Testing & Performance
Let’s be honest, if you’re considering the Eufy Omni S1 Pro, it’s probably for the mopping. And I’ll say it right up front, this is the best mopping experience I’ve had with any robot vacuum so far. Most robot vacuums with mop features just drag a damp cloth around the floor. Some vibrate or offer sonic movement, but the pad usually gets dirty quickly and stays dirty until the robot returns to the base. Even dual spinning pad systems get grimy within minutes and don’t self-clean during the job unless you manually send them back for a wash, which takes time and water.
The S1 Pro, on the other hand, uses a long rotating mop roller that spins at around 170 RPM, and the biggest difference is how it keeps itself clean mid-job. It has a built-in clean water tank that keeps the mop damp as it scrubs and a separate dirty water tank that collects the used water. So instead of just wiping your floors with the same dirty pad, it’s actually washing and scrubbing as it moves. This made a huge difference in my testing. I threw dried-up ketchup and mustard on the floor, and to my surprise, it removed them on the first pass, something no other robot mop I’ve used could do. The roller is also wide, almost edge-to-edge at around 11.4 inches (290 mm), so it covers more floor with each pass.
A Few Limitations to Keep in Mind
That said, the mopping system isn’t perfect. Since the mop roller is fixed underneath the robot, it doesn’t extend out, which means it misses corners and edges, something that some dual-mop systems handle better. Another thing to keep in mind: it’s not made for wet messes like spilled milk or water. The vacuum runs while it’s mopping, and there’s no mop-only mode, so if you try cleaning a fresh spill, it might suck liquid into the dustbin, which is messy and can cause odors. I really hope Eufy adds a mop-only mode in a future update, because that would make this robot nearly perfect.
Carpet Detection and Smart Suction Boost
One thing that actually surprised me was how well the S1 Pro handles carpets while mopping. The first time it rolled onto a rug, I was ready to stop it; I thought it was going to soak the whole thing. But nope, it automatically lifted the mop roller before touching the carpet. I didn’t have to do anything. It just knew.
At the same time, it kicked the suction up to full power, or at least whatever setting I had saved in the app. That boost made a noticeable difference in how much it picked up from my rugs. I’ve tested a lot of robots that claim to do this, but the S1 Pro actually does it well and consistently. That little moment made me trust the automation more, which is rare for me with robot vacuums.
Obstacle Avoidance
The Eufy Omni S1 Pro has one of the best obstacle avoidance systems I’ve seen on any robot vacuum, period. I’ve tested a bunch, and this one (just like the X10 Pro) absolutely nailed it. I ran it through all the usual real-world mess, low-hanging wires, scattered shoelaces, and yes, even a (fake) pet poop test. It didn’t just avoid them; it never even touched them. I’m not talking about big, obvious stuff like shoes or furniture legs; most robots can handle those. I mean the tricky stuff like thin cords lying flat or small objects tucked under tables. The S1 Pro just glided around everything like it had eyes.
If you’ve got kids who leave things lying around or pets that might have accidents, this robot really gives you peace of mind. It’s easily the most reliable in terms of obstacle detection, and I say that after personally trying it in a cluttered space. No awkward bumping, no messes, just clean, smart navigation. Eufy really nailed it here.
Smart Extras: Detergent, Ozone, and a Few Annoyances
Since we’re still on mopping, there are a couple of extra features worth mentioning. First, the base station supports automatic detergent dispensing, which is great, but there’s a catch. You can only use Eufy’s proprietary detergent bottles. So unless you find a creative workaround, you’re locked into buying their brand. Personally, I wish I could just fill it up with whatever floor cleaner I prefer. Maybe they’ll offer a refillable bottle later on.
Another interesting feature is something Eufy calls Eco-Clean Ozone. I’ll be honest, I’d only heard of ozone in terms of the ozone layer, but here, it’s used to help reduce bacteria buildup on the mop and inside the machine. It creates these tiny bubbles in the water, and while it looks cool, I couldn’t really tell if it made a difference. Feels like more of a bonus feature than something you’d rely on, but hey, it’s there.
UniClean Base Station
Now, the UniClean base station deserves its own spotlight. It’s where the robot goes to recharge, wash the mop roller, empty dirty water, and suck out dust, and honestly, it’s one of the most futuristic-looking bases I’ve seen. The moment the robot docks, it deep-cleans the mop roller (even though it’s already being cleaned during mopping), empties the onboard dirty water, refills the clean water tank, and empties the robot’s dustbin.
The onboard dustbin on the robot itself is pretty small compared to others I’ve used, but that doesn’t really matter since it empties automatically each time. The dust is actually sucked out from underneath the robot instead of behind it, which is a cool touch and a cleaner design overall. The dust bag inside the station is a good size and should last a few months before needing a replacement.
You’ll also notice the clean water tank is positioned on top and in front of the station. It’s clear and easy to check at a glance, super handy if you’re heading out and want to quickly top it off. The dirty water tank is tucked away in the back, which I actually appreciate since you don’t have to stare at gross water every day. The whole thing stands a bit taller than other bases I’ve tested, but it’s also slimmer, so it fits nicely into tighter spaces.
The design really does feel futuristic; the base looks like a rocket ship, and the robot itself skips the typical bulky LiDAR bump. Instead, the LiDAR is hidden inside the front, giving it a much cleaner, sleeker look.
Quiet Touches That Make a Difference
Missing Robotic Arm Affects Edge Cleaning
Despite the D-shaped design and dual side brushes, the S1 Pro still struggles with corner cleaning. In one of my tests, it completely missed a patch of dust in the corner, even though it passed nearby. I compared it with another robot that uses a robotic arm-style brush that extends out, and that one cleaned the corner effortlessly. It’s a small feature, but it makes a noticeable difference, and I really wish Eufy had included something similar here.
As for the main roller, it’s a rubber brush, not a bristle-based one. It’s good for resisting tangles in the short term, but if you have pets or long hair in the house, you’ll still need to clean it manually now and then. After a few uses, I had to take it out and pull off some stuck hair—not a deal-breaker, just something to keep in mind.
Smart Home Integration
Final Thoughts
After testing the Eufy Omni S1 Pro in my own home, I can confidently say this is one of the most advanced Eufy robot vacuums I’ve used, especially when it comes to mopping. If mopping performance is your priority, this thing is hard to beat. The self-cleaning rolling mop does a fantastic job at lifting dried messes, and it’s smart enough to automatically lift itself over carpets and boost suction where needed. That alone puts it in a different class compared to most robot mops I’ve tried.
But it’s not perfect. Despite its D-shaped design, it still doesn’t clean corners well. In fact, round robots with extending brush arms sometimes perform better in tight spots. The vacuuming performance is strong in open areas, but nothing groundbreaking, and you’ll likely need to clean out the rubber roller if you have long hair or pets.
The obstacle avoidance, though, is top-notch. It avoided every wire, shoelace, and low-hanging object I threw at it. No joke, it didn’t bump into or drag a single thing. If you’ve got pets or messy kids, this robot will save you headaches.
Where it falls flat is smart home integration. Yes, the app is great, but voice assistant support is basic and sometimes unreliable. No Matter support either, at least not yet. You’ll probably end up just using the Eufy app most of the time.
So, is it worth it? If you’re mainly after the best mopping system on any robot vacuum and want a robot that can avoid almost anything in its path, yes, it’s 100% worth it. But if corner cleaning, deep smart home integration, or advanced vacuum-only performance are deal-breakers for you, you might want to look elsewhere. The Mova V50 Ultra and Ecovacs X9 Pro are much better options in terms of features, performance, and edge cleaning.
For me, it’s become a regular part of my cleaning routine, and for the first time, I don’t feel like I need to mop by hand anymore. That says a lot.
