Eufy Omni S2 Robot Vacuum review: Great suction, brilliant mopping and low-maintenance appeal

T3’s Eufy Omni S2 Robot Vacuum review in a sentence: A brilliant all-round solution that can tackle a variety of floor coverings with little in the way of supervision.

It’s taken a while to appear, but after some fine-tuning, the Eufy Omni S2 Robot Vacuum is finally upon us. This premium product covers all of the basics, but Eufy has engineered in plenty of new features and functions to attract buyers who are already spoilt for choice. In fact, when it comes to the best robot vacuums, there is a dizzying array of models to choose from.

But, I’d say the Eufy Omni S2 Robot Vacuum is a great option if you’re keen to have a machine that can do a bit of everything, rather than the ‘little and often’ cleaning carried out by cheaper models with lesser specifications. The Eufy Omni S2 has a bumper specification that includes 30,000 Pa AeroTurbo suction, intelligent carpet cleaning that adapts to different piles, HydroJet mopping, which is self-cleaning and the ability to bypass over 200 obstacles in its path.

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There is also edge-to-edge cleaning, a low-maintenance base station that offers 12-in-1 convenience so that emptying only needs to be done after 68 days. Meanwhile, Eufy has added a neat additional feature, which is a built-in diffuser for keeping things fresh around the house. Add in everyday necessities including anti-tangle brushes and the ability to customise its mapping capabilities to suit all kinds of layouts and the package looks like a very strong one.

After spending weeks with the Eufy Omni S2, these are my honest thoughts.

eufy Omni S2 Robot Vacuum review: Price and availability

The Eufy Omni S2 Robot Vacuum sits at the top end of the pricing spectrum, mainly because it packs so many features and functions. The RRP for this beauty is $1,599 in the US and £1,599 for the UK market. It can be purchased directly from Eufy.com or via Amazon, depending on your personal preference.

eufy Omni S2 Robot Vacuum review: Design

Anyone buying a robot vacuum with such a sizeable price tag attached is right to expect all of the bells and whistles that come with a premium product. The Eufy Omni S2 Robot Vacuum might be expensive, but this low-maintenance machine with multi-function features is impressive and, best of all, able to tackle all types of surfaces including hard floors including wood, laminate and marble. Equally, it’s able to handle carpets of different pile types and adjusts performance accordingly.

The other boon here is its low-maintenance design. Once tanks are filled, the appliance can work quite happily and can be controlled by the very good app or voice control. I was impressed by the 30,000 Pa Aero Turbo suction, but the floor mopping credentials looked even better.

In particular, the stain removal potential sounded really good with a meaty downward pressure of 1.5kg, 29cm of cleaning coverage and a 32-hole self-washing mop sounding very impressive. On top of that, Eufy also reckons the Omni S2 delivers 99.99% sterilisation during operation by disinfecting its self-clean mop for up to 5 days during normal use. This is done using hot water up to 60 degrees and then drying the roller with 55 degrees of heat.

One thing that slightly bugs me with multi-function robot vacuums is that many now come with base stations that are big and, often, not exactly great to look at. Many manufacturers have attempted to jazz up the design a bit to make them look better around the home. Now, Eufy has gone a step further with a design that is certainly striking and is also quite funky to look at.

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What I really like about Eufy is its supplementary app and software, which in my experience works well and proves to be dependable during daily use. There’s nothing worse than having headaches during the setup process and, thankfully, with eufy I’ve never had any problems.

Additionally, mapping rooms is made straightforward thanks to the well-engineered software that seems able to cope with complex room shapes and obstacles without fuss. Indeed, the 3D MatrixEye 2.0 system can identify obstacles right down to a size of just 1cm, which should mean it’ll even cope with chunks of LEGO and the like if you can’t be bothered to have a quick pick up session before it gets underway.

eufy Omni S2 Robot Vacuum review: Performance

As with any premium, multi-function robot vacuum, the Eufy Omni S2 promised much, so I was curious if it would live up to my expectations. The appliance does take a little while to configure and I’d say it’s worthwhile looking through the instructions in order to get things right first time. Out of the box, there was also some building to do, with installation and filling of the cleaning tanks, along with configuration of the app. As mentioned earlier, though, Eufy does make the latter aspect a doddle to get through. Thumbs up on that front.

After mapping my floorplan, using the great app, I first tried the machine on a mix of carpets. I’ve often been left feeling a bit deflated by the ability of robot vacuums to look and feel like they’ve done a good job on carpets. However, this model packs Eufy’s AeroTurbo functionality, which did seem to do a great job on a variety of piles. The Omni S2 adapts depending on the height of the pile, up to 5cm in fact, and increases suction as it does this.

Fluffy rugs are still a bit of a bridge too far, although because this machine is ‘smart’ it’ll tackle one with, say, a tassle at the end by bypassing that bit and starting where the pile is less problematical. Overall, the suction and ability to not get bogged down by tangles of hair in the rollers, were very good. Plus, the robot packs the obligatory AI tech that enables it to avoid potential tricky obstacles, which I thought worked as well as I’d expected it to.

While the suction and vacuum capabilities of the Eufy Omni S2 were largely spot-on, the roller mopping part of the appliance was equally appealing. As someone whose house needs regular laminate flooring once overs, this was a big part of the reason for considering this robot vacuum. The problem I always have is the way my laminate floors are susceptible to high moisture levels, so I’m always on the lookout for a machine that can mop effectively, but without using too much water.

The roller mop system did seem very impressive. There’s a dual-scraper design within the robot's body that removes muck from the roller as it works and the Omni S2 also seemed really good at getting grunge into the collection tank, rather than letting it recirculate back into the roller. The extra downward pressure was effective on something like a jam stain, requiring only a single pass to get the job done. I think it’d prove very useful for anyone with younger kids, unruly pets or messy partners to deal with.

An added bonus feature with the Eufy Omni S2 was its built-in fragrance dispenser. There’s a little area on the robot vacuum itself where fragrances including Citrus and Basil, Bamboo and Sage or Bergamot and Lychee can be added to deliver a whiff of freshness around the house. I’m not normally a fan of these things, but the Eufy Omni S2 dispenses it without leaving an overbearing smell afterwards, so anyone who loves a hint of freshness might find this a real boon. Again, folks with less than savoury pooches around the house might get best value from that.

eufy Omni S2 Robot Vacuum review: Verdict

The Eufy Omni S2 Robot Vacuum is a power-packed appliance that covers all bases when it comes to vacuuming around the home. Suction is great, the mopping and stain removal proves very dependable and, overall, it can be left to its own devices to get the job done.

Occasional maintenance is needed and the filters will need changing from time to time, but it’s worth looking out for Eufy’s bundle options that throws in a replacement for free. Granted, this robot vacuum comes with a high price tag, but it ticks all of the right performance boxes and looks quite cool too.

eufy Omni S2 Robot Vacuum review: Alternatives to consider

What to buy when we’re so spoilt for choice when it comes to robot vacuums? Thankfully, at the premium end of the spectrum, there are some obvious models that tick many similar boxes to the Eufy Omni S2 robot vacuum. Take a look at the Dreame X50 Ultra Complete robot vacuum, the Ultenic T10 and impressive Shark Matrix Plus Robot Vacuum, which has full vac and mop functionality as does the Roborock Qrevo Master robot vacuum.

For larger rooms, the iRobot Roomba Combo J9+ is a solid option and does a little bit of everything and the Eufy Clean X8 Pro machine is similarly impressive. Meanwhile, the older Eufy X9 Pro and the keenly priced iRobot Roomba j7+ are a couple more worth investigating. Finally, try looking at the Roborock S8 MaxV Ultra, SwitchBot Mini K10+, Eufy Omni S1 Pro or the Roborock Saros 10, all of which get the job done depending on available budget.