If you want better Ongoing ownership costs (bags, filters, batteries)
Choose Mova V50 Ultra Complete. It scores 4.7 vs 2.0 for Ongoing ownership costs (bags, filters, batteries), with a 4.4 overall score.
Eufy S2 Omni Review
Bottom Line
Choose it for excellent hard-floor mopping, sustained suction and nearly tangle-free hair handling. Skip it if precise edge cleaning, quiet maximum-power operation or flagship value matters more.
Best for
Best for pet-heavy homes with mostly hard flooring or mixed floors where frequent mopping, low brush maintenance and strong automation matter most.
Not for
Skip it for carpet-dominant homes demanding the deepest agitation, tight spaces that expose navigation quirks, or buyers prioritizing quiet operation and maximum value.
Verdict
The Eufy S2 Omni is a premium robot built around three genuine strengths: sustained suction, an excellent self-cleaning roller mop, and unusually effective hair management. Across the supplied testing, it cleans hard floors exceptionally well, handles most rugs and carpet transitions confidently, and keeps its filter and brushes cleaner than typical designs. The UniClean station also delivers one of the most complete hands-off ownership experiences available. The tradeoffs are meaningful, however. Edge-following can leave gaps, maximum suction is loud, battery coverage drops sharply at higher power, and some navigation and smart-home controls trail leading rivals. Dried-stain results also vary from excellent in household tests to merely average in standardized testing. Its high price makes the most sense for pet-heavy, mostly hard-floor homes that will use the mop frequently.
Feature Scorecards
Summary
78 reviewed features-
Very positive 4.5-5.053 (68%)
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Positive 3.5-4.412 (15%)
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Neutral 2.5-3.49 (12%)
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Negative 1.5-2.44 (5%)
Pros
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Suction is the S2’s clearest strength, with strong pickup across hard floors, rugs and embedded carpet debris. Multiple long-term tests also found that airflow stayed consistent as the bin and filter accumulated dust.
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The multi-cyclone system is a standout innovation, separating debris before it reaches the filter. It preserves airflow and keeps suction close to day-one strength through extended use.
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The translucent top, glowing ring and slim tower give the S2 a distinctive premium look. Its design feels more like modern home technology than a bulky cleaning appliance.
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The UniClean station is consistently praised for reliable emptying, mop washing, drying, refilling and detergent dosing. It is among the most complete and dependable docks in the category.
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Setup is consistently described as simple: assemble the ramp, fill the tanks, scan the app code and map the home. Most users can start cleaning within minutes.
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Cyclonic separation keeps the filters unusually clean and contains fine dust effectively. Several extended-use tests found little visible buildup or suction loss.
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The S2 handles area rugs exceptionally well, climbing thicker piles while avoiding tassels and lightweight mats. It is less likely to bunch, drag or become trapped by rugs.
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The automated dock, schedules, self-cleaning mop and reliable mapping make daily cleaning exceptionally convenient. Most routine work is reduced to servicing water tanks and consumables.
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The roller is washed continuously while mopping and then cleaned and dried again at the dock. This keeps it fresh, reduces smearing and minimizes hands-on mop care.
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The robot and dock feel solid, well assembled and appropriately premium. Long-term testers reported no meaningful loss of structural quality.
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The dock display and app controls are clear, responsive and easy to understand. Angled controls and visible status information reduce the need to bend down or guess what the robot is doing.
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Strong airflow reaches dust and litter in hardwood seams and floor grooves. This is a meaningful advantage on textured or imperfect hard floors.
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Everyday use is straightforward once the home is mapped. Clear controls, scheduling and extensive dock automation let the robot operate with little supervision.
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The continuously cleaned roller is particularly effective on fresh spills because it extracts liquid instead of spreading it. Wet messes are one of the system’s best use cases.
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The S2 maintained strong suction and cleaning consistency through weeks or months of frequent use. Its durable feel and low performance decay inspire confidence for long-term ownership.
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Pet owners benefit from excellent hair pickup, minimal brush tangling and a dock that can move dense fur without clogging. The sanitizing mop system also suits homes where pets track in dirt.
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The robot’s low body reaches beneath beds, chairs and many cabinets while continuing to navigate reliably. It performs useful cleaning in places that are awkward to reach manually.
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The S2 works well across hard floors, short carpet, medium carpet and many rugs. Its vacuum-and-mop design makes it a strong all-rounder for mixed-floor homes.
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Visible tank levels and app alerts make it easy to know when clean water is low or dirty water needs attention. This reduces interrupted cleaning sessions.
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The dock’s disposable bag can hold roughly two months of debris, reducing how often it needs attention. That supports the S2’s hands-off appeal.
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The multi-cyclone system prevents fine dust from rapidly clogging the filter. Suction stayed strong even after substantial debris collection.
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The self-empty dock handles dense hair and packed debris without clogging in normal use. An overfilled bin may occasionally require a second empty cycle.
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The app’s service timers clearly show when filters, brushes and other consumables need attention. This is easier than tracking maintenance manually.
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Mopping left hard floors visibly clean, glossy and pleasant underfoot. The finish was especially impressive on kitchens, hallways and other high-traffic hard surfaces.
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Hard-floor hair pickup is excellent, including long human hair and pet fur. The debris moves cleanly into the suction path instead of wrapping around the rollers.
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The center hair channel works as intended, directing strands toward the suction port instead of trapping them. Test rollers remained nearly free of wrapped hair.
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Heated mop washing and hot-air drying improve roller hygiene and reduce lingering moisture. The dock prepares a cleaner mop for the next run with little manual effort.
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The built-in fragrance module and onboard multi-cyclone system distinguish the S2 from most competitors. Both features make the product feel genuinely different rather than merely more powerful.
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The sanitized mopping system and strong avoidance of cords and household clutter make the S2 appealing for families. Cleaner floors provide extra reassurance where children play.
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Movement is smooth and responsive, without the jerky corrections seen in some robots. It transitions through rooms and around furniture confidently.
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Frequent firmware updates improved the pre-release unit and addressed reported quirks. Ongoing software refinement appears to be a meaningful part of the product’s support.
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Automatic detergent dosing and controlled water delivery keep the mopping system supplied without manual measuring. The liquid system supports consistent cleaning across scheduled runs.
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Cliff detection handled stair edges safely during testing. The robot navigated upper levels without attempting a dangerous drop.
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Hair resistance is one of the strongest areas of agreement. The split DuoSpiral brush routinely finishes long-hair and pet-heavy cleaning with little or no wrapping.
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The adaptive chassis lift is highly effective on thick rugs and carpet transitions. It raises the body, increases suction and reduces the chance of becoming stranded.
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Carpet hair pickup is consistently strong, with excellent results on pet fur and long hair. The detangling design trades a little peak agitation for far less maintenance.
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Hard floors usually dry without visible streaks or residue. Controlled water output and the continuously cleaned roller leave a consistent finish.
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Mopping is the product’s signature strength, producing clean, streak-free hard floors with continuous fresh water and firm downward pressure. Difficult grout and severe dried stains can still require manual work.
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Electrolyzed water, hot washing and continuous roller cleaning give the S2 unusually strong hygiene features. The system is especially appealing for homes with children or pets.
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Low-pile carpet pickup is very good, including ordinary dust, crumbs and pet hair. It cleans these surfaces confidently without the mobility problems of the older model.
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Medium-pile carpet pickup is consistently strong, including embedded dirt and pet hair. It performs close to the better carpet-focused robots in normal use.
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The S2 earns broad praise for suction, mopping, hair handling and dock automation. Its premium price, inconsistent edge work and uneven navigation keep it from being the best fit for every home.
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Obstacle avoidance is usually excellent, including cords, pet waste and small household objects. A few tests still found collisions with dark items, toys or objects encountered immediately after a threshold.
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The extending side brush improves corner pickup and often reaches debris that fixed brushes miss. Results depend on how aggressively the robot approaches the wall.
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The app offers clear maps, schedules, room controls and adjustable cleaning settings. Core automation works well, although smart-home commands and advanced customization trail some rivals.
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High-pile performance is much improved, with effective chassis lifting and strong suction on plush rugs. Deep agitation is not class-leading in every test, so carpet-focused homes should weigh that tradeoff.
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Dried-stain removal is generally strong on everyday sauce, coffee, paw prints and jam, but tougher controlled tests produced mixed results. It is effective routine mopping rather than a guaranteed replacement for heavy scrubbing.
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The 28 mm mop lift protects most carpets and supports mixed-floor cleaning in one run. Very thick carpet can still make light contact because the measured lift includes suspension travel.
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The package includes useful starter supplies such as cleaning solution, fragrance modules and a spare dust bag. The extras make the initial setup more complete.
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Dirty-water sensing can trigger an additional cleaning pass when the extracted water remains heavily soiled. This adds useful automation for messier rooms.
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Low-light operation is reliable enough for overnight or early-morning cleaning. The robot can navigate dark rooms without needing the household lights turned on.
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The robot fits under most ordinary furniture despite its advanced sensors. Its low profile expands useful cleaning coverage in bedrooms and living areas.
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The S2 handled tens of thousands of square feet and many hours of daily cleaning with little performance decline. It is well suited to frequent, demanding use.
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The fragrance system is polarizing: some homes noticed a pleasant, subtle freshness, while others could barely detect it. Dirty-water odors still require regular tank rinsing.
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Edge performance varies more than the central cleaning results. Some units clean close to baseboards, while others leave visible gaps because the robot rides too far from walls.
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Large debris pickup is usually immediate and controlled, though some tests found cereal pieces scattered or avoided. A second pass may be needed for grouped bulky debris.
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Maintenance is generally low because the dock washes, dries and empties automatically, while cyclonic filtration keeps parts cleaner. Roller trays and dirty-water tanks still need periodic rinsing.
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The tall tower dock is narrower and easier to service than many wide stations, but it needs considerable vertical wall space. It works best where height is less restrictive than floor width.
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Fine-dust pickup is strong overall, helped by sustained airflow and effective filtration. Fast side brushes can scatter light particles on the first pass before the robot recovers them.
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Mapping is fast and generally accurate, with useful 3D room and furniture recognition. Path efficiency is less consistent, and some tests found slower routes or unnecessary circling near complex edges.
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The floor remains lightly damp after mopping but not dangerously wet. Drying is reasonable for routine hard-floor cleaning.
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The lifting chassis handles normal thresholds and thick rugs well, but unusual obstacles and very tall transitions can cause hesitation. Low furniture is another occasional trapping risk.
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The S2 handles mixed debris well, but grouped cereal and other bulky pieces can expose inconsistent approach behavior. Most remaining debris is recovered with additional coverage.
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Compared with its predecessor and current flagships, the S2 clearly improves hair handling and carpet mobility. It is less dominant in deep-carpet agitation, software features and value.
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The water tanks are easy to access and generously sized, but heavy mopping can require refilling and emptying every few runs. Large single-floor homes may need more frequent tank service.
Cons
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The flagship price is the most consistent hesitation. Strong cleaning and automation help justify it, but several less expensive robots deliver similar results in selected areas.
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Runtime ranges from adequate to disappointing depending on power level. Large homes may see a recharge interruption, especially when maximum suction is used.
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Value depends strongly on priorities. It makes sense for frequent hard-floor mopping and heavy hair, but cheaper robots can match parts of its performance with less maintenance.
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Child lock is useful for preventing accidental dock commands, but it also limits the convenience of the touchscreen. Households with children may rely more heavily on the app.
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Reliability is mixed: firmware support has been active, but early recall concerns and occasional app disconnects temper confidence. The short warranty also feels conservative for such an expensive machine.
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Battery performance depends heavily on suction mode, and maximum power sharply reduces coverage. Recharge times around five hours are slow for a flagship robot.
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The robot is acceptable on lower settings but becomes noticeably loud at maximum suction. Buyers sensitive to noise will likely prefer scheduled daytime runs or reduced power.
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Edge-following accuracy is inconsistent, with some runs leaving an obvious perimeter gap. More app control over wall distance and brush deployment would improve results.
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Cloud-dependent integration limits fully local privacy and control. Native Matter support provides a partial workaround for smart-home users.
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The robot itself fits beneath much furniture, but the tall dock and occasional navigation trouble in tight nooks make it less ideal for compact homes. Small apartments may also find the system excessive.
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The powerful fan can blow light hair or fine debris away before pickup. This was most noticeable with loose cat hair during controlled hard-floor testing.
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Ownership costs can be high once replacement bags, filters, fragrance modules and heavier maintenance are considered. Budget-focused buyers may find simpler systems cheaper to run.
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Repeatedly getting trapped beneath one console caused visible scratches on the front. Homes with low, tight furniture may need a no-go zone to protect the finish.
Compared With Category Average
Compared with other Robotic Vacuums, this product is above average in Stair Cleaning, Hair-removal channel issues, Crevice / Groove Pickup (Hard Floors), near average in Overall opinion, AI, Smart, App and Automation, below average in Airflow blowback, Ongoing ownership costs (bags, filters, batteries), Edge‑Following Accuracy (Robot).
Summary
77 compared features-
Above average 0.4+ pts higher52 (68%)
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Same as average within 0.3 pts11 (14%)
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Below average 0.4+ pts lower14 (18%)
Largest category differences
| Attribute | This product | Category average | Difference |
|---|---|---|---|
| Stair Cleaning | 5.0 | 2.7 | +2.3 |
| Hair-removal channel issues | 5.0 | 3.1 | +1.9 |
| Crevice / Groove Pickup (Hard Floors) | 5.0 | 3.5 | +1.5 |
| Airflow blowback | 2.0 | 3.5 | -1.5 |
| Ongoing ownership costs (bags, filters, batteries) | 2.0 | 3.5 | -1.5 |
| Edge‑Following Accuracy (Robot) | 2.5 | 4.0 | -1.5 |
| Solution / Liquid system | 5.0 | 3.5 | +1.5 |
| Clogging and debris prevention | 5.0 | 3.5 | +1.5 |
Consider This Instead
If you want better Value-for-money
Choose Yeedi M16 Infinity. It scores 4.7 vs 3.0 for Value-for-money, with a 4.2 overall score.
If you want better Edge‑Following Accuracy (Robot)
Choose Dreame X40 Ultra Robotic Vacuum. It scores 5.0 vs 2.5 for Edge‑Following Accuracy (Robot), with a 4.2 overall score.
If you want better Battery and Charging
Choose MOVA P10 Pro Ultra Robot Vacuum. It scores 4.9 vs 2.8 for Battery and Charging, with a 4.2 overall score.
Compared in Reviews
Products reviewers directly compared with this model, grouped into quick takeaways.
- Older model: carpet behavior and mixed-floor performance The S2 is presented as an upgrade aimed at correcting the predecessor’s carpet weaknesses.
- Similar: obstacle avoidance The S2 matched the rare perfect obstacle-avoidance result previously achieved by this model.
Dreame X50 Ultra Complete robot vacuum
- Alternative: premium vacuum-and-mop functionality This model was named as another premium option with overlapping cleaning capabilities.
FAQ
Is the Eufy S2 Omni good on carpets?
It is much better than the S1 generation on thick rugs and high-pile transitions, with strong suction and chassis lifting. Controlled tests still found deep agitation behind some carpet-focused rivals.
Does hair wrap around the brushes?
Hair resistance is one of its best traits. Long-hair and pet-heavy tests repeatedly found little or no wrapping around the DuoSpiral rollers.
How well does it mop dried stains?
It handles routine coffee, sauce, paw prints and jam well, often in one pass. More demanding standardized stain and grout tests were mixed, so occasional manual scrubbing remains necessary.
Does the fragrance system work?
Results vary. Some testers noticed a pleasant subtle scent, while others could barely smell it during or after cleaning.
Is the dock low maintenance?
The station reliably empties debris, washes and dries the roller, refills water and doses detergent. You still need to rinse the dirty-water tank and clean the roller tray periodically.
Is it worth the flagship price?
It is easiest to justify for frequent hard-floor mopping, pets and long hair. Buyers who mainly vacuum carpets or clean less often can find better value in cheaper models.
Sample Expert Reviews We Analyzed
These are a few of the reviews included in our analysis.
Video Reviews
YouTube - Just A Dad Approved
- Review score
- 3.1
YouTube - Smart Home Junkie
- Review score
- 4.7
YouTube - TechMagnet
- Review score
- 5.0
YouTube - David Manning
- Review score
- 5.0
Article Reviews
zdnet.com
The Eufy Omni S2 improves on its predecessor with four times the suction power, and an odor-free mop roller.
- Review score
- 4.6
vacuumwars.com
Our in-depth Eufy Omni S2 review breaks down how this premium flagship robot vacuum fixes the carpet-cleaning issues of the S1, its flawless...
- Review score
- 4.1
tomsguide.com
The Eufy Omni S2 excels in just about everything — powerful suction, streak-free mopping, and handy extras. However, its navigation falls...
- Review score
- 3.9
t3.com
Anyone with a mix of floor surfaces and coverings will find the versatility of the Eufy Omni S2 Robot Vacuum hard to resist
- Review score
- 4.8
techradar.com
- Review score
- 4.2
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