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 4.5 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 highlights
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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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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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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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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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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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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.
Cons highlights
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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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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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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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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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Runtime ranges from adequate to disappointing depending on power level. Large homes may see a recharge interruption, especially when maximum suction is used.
Compared With Category Average
Compared with other Robotic Vacuums, this product is above average in Stair Cleaning, Water-level alerts, Hair-removal channel issues, near average in Overall opinion, AI, Smart, App and Automation, below average in Edge‑Following Accuracy (Robot), Ongoing ownership costs (bags, filters, batteries), Scratch resistance.
Comparison summary
78 compared features-
Above average 0.4+ pts higher53 (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 | 2.9 | +2.1 |
| Water-level alerts | 5.0 | 3.0 | +2.0 |
| Hair-removal channel issues | 5.0 | 3.1 | +1.9 |
| Crevice / Groove Pickup (Hard Floors) | 5.0 | 3.4 | +1.6 |
| Clogging and debris prevention | 5.0 | 3.5 | +1.5 |
| Edge‑Following Accuracy (Robot) | 2.5 | 4.0 | -1.5 |
| Solution / Liquid system | 5.0 | 3.5 | +1.5 |
| Ongoing ownership costs (bags, filters, batteries) | 2.0 | 3.5 | -1.5 |
Consider This Instead
If you want better Battery and Charging
Choose Narwal Flow 2. It scores 4.7 vs 2.8 for Battery and Charging, with a 4.3 overall score.
If you want better Value-for-money
Choose Yeedi M16 Infinity. It scores 4.7 vs 3.0 for Value-for-money, with a 4.4 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 4.3 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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#4
This product
Eufy S2 Omni
Best 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.
Pros: Overall opinion, Mopping performance
Cons: Support and Reliability, Price and Value