Eufy Omni S2
Robot Vacuum & Mop
$1,600

Eufy

Eufy Omni S2

4.5(450 reviews across retail listings)

Eufy's 2026 flagship pairs 30,000Pa AeroTurbo suction with the HydroJet 2.0 self-cleaning roller mop that sterilizes with electrolyzed water, 3D MatrixEye depth vision, and a 12-in-1 UniClean dock that washes the roller at 140°F, dries it with hot air, and even dispenses one of three built-in fragrances.

Price
$1,600
Suction
30000 Pa
Battery
180 min
Best For
Pet owners who want carpets deep-cleaned and a fresh-smelling home

Specifications

Navigation
Camera
Suction Power
30000 Pa
Battery Life
180 min
Noise Level
57 dB
Dustbin
330 ml
Water Tank
330 ml
Dimensions
14.1 x 12.8 x 3.9 in
Weight
11.0 lbs
Warranty
2 years
Self-Empty
Yes
Mop Function
Yes

Features

Self-Empty StationAuto Mop WashingHot Water WashingAI Obstacle AvoidanceCarpet DetectionAuto Mop LiftingMulti-Floor MappingApp Control

Pros

  • Huge carpet upgrade over the Omni S1 Pro - 87% embedded sand removal versus the S1's 61% in Vacuum Wars testing
  • Perfect 24-of-24 obstacle avoidance run thanks to 3D MatrixEye ToF vision with an auto LED light matrix
  • HydroJet 2.0 roller mop continuously self-cleans with electrolyzed water through 32 injection holes and posted a 0% hair-tangle rate
  • DuoSpiral split main brush and extending side brush chew through long pet hair without wrapping
  • 12-in-1 UniClean dock handles emptying, 140°F mop washing, 131°F drying, water refills, and three-scent aromatherapy

Cons

  • Hard-floor mopping actually scored worse than the cheaper Omni S1 Pro in head-to-head testing
  • Premium $1,599.99 price with slower, less efficient navigation than other flagships
  • Threshold climbing is inconsistent on taller 1.25-inch (32mm) transitions
  • Camera/ToF navigation skips the LiDAR turret, so mapping can struggle in very dark rooms

Owner Insightssummarized from Reddit and owner forums

The Omni S2 is Anker's flagship swing at the premium tier, and its signature stat is one nothing else in this catalog matches: a perfect 24-of-24 obstacle-avoidance run in Vacuum Wars testing. Reviewers describe a robot you genuinely don't supervise — T3 called it "a brilliant all-round solution" needing little in the way of babysitting. It also fixes the S1 Pro's biggest flaw, jumping from 61% to 87% on carpet deep cleaning with zero hair tangling. Note that this is a 2026 release with thin owner-thread coverage so far — most of what's below comes from professional long-term reviews rather than a deep well of Reddit reports.

The daily experience is built around the 12-in-1 UniClean dock: heated 140°F mop washing, hot-air drying, auto-detergent, a claimed 68 days between debris empties, and a scent diffuser (Bamboo & Sage, Citrus & Basil, or Bergamot & Lychee) that reviewers admit actually works. The HydroJet roller mop cleans itself as it goes, extends toward walls, and lifts 28mm over carpet. The catch is the mopping result itself: it dispenses so little water (0.35g vs a 1.07g average in testing) that dried-stain removal came in about 20% below average — a step back from the S1. It's also slower than average around the house, louder than rivals while vacuuming, and it flunked a 32mm threshold despite its 35mm rating.


This is for mixed carpet-and-hard-floor homes with clutter, kids' toys, and pets — the households where obstacle avoidance is worth more than scrubbing power. At $1,599.99 it sits right at Roborock Saros 20 money with weaker mopping and no comparable threshold climbing, which is a hard sell at list; the most damning data point is Reddit owners returning it for the half-price Ecovacs T90 Pro Omni. Catch it on one of eufy's frequent $200+ coupon deals and the calculus improves considerably.

What owners like

  • +Perfect 24-of-24 obstacle-avoidance score in Vacuum Wars testing — it simply does not hit things
  • +Massive carpet improvement over the S1 Pro — 87% deep clean vs 61% — with 0% hair tangles from the DuoSpiral split brush
  • +12-in-1 UniClean dock goes about 68 days between debris empties and auto-dispenses detergent
  • +HydroJet roller mop self-cleans as it mops, presses at 15N, and lifts a full 28mm over carpet — one of the highest lifts in class
  • +Built-in scent diffuser with three fragrances sounds like a gimmick, but reviewers consistently note the house actually smells freshly cleaned

Common complaints

  • Mopping regressed from the S1: an 82-point dried-stain score, about 20% below the studio average, because it meters water too conservatively (0.35g vs a 1.07g average)
  • $1,599.99, and it keeps you inside eufy's ecosystem for detergent and fragrance refills
  • Noticeably louder than competing flagships while vacuuming
  • Slow, below-average navigation — roughly 1,088 sq ft per charge and unhurried runs
  • Failed a 32mm threshold in testing despite its 35mm climbing rating
  • Several Reddit owners returned it and bought the ~$600 Ecovacs T90 Pro Omni instead, citing value and easier upkeep

Common Questions

Is the mopping actually bad?
For daily maintenance, no — reviewers report streak-free, shiny floors. For dried-on messes, yes, it underperforms: 82 points on stain testing, about 20% below average, because it's stingy with water (0.35g vs a 1.07g average). The older S1 Pro actually mopped stains better.
Omni S2 vs Ecovacs T90 Pro Omni?
Both use self-washing roller mops, but the T90 costs roughly half as much and posted one of the best stain-removal scores ever measured, while the S2 wins on obstacle avoidance (24/24 vs 23/24) and dock capacity. Multiple Reddit owners returned the S2 and bought the T90 — value clearly favors the Ecovacs unless flawless navigation is your priority.
Is the 68-day empty claim realistic?
That's eufy's number for the dock's debris storage under typical conditions, and reviewers found the low-maintenance pitch broadly holds up. A multi-pet household will shorten it considerably. Either way it's among the longest maintenance intervals in the class.
What's the deal with the scent diffuser?
The dock releases fragrance as the robot works — three options: Bamboo & Sage, Citrus & Basil, Bergamot & Lychee. Reviewers who expected a gimmick ended up liking it, with one headline literally calling it "the robot vacuum that actually smells good." Refills are another eufy-only consumable, though.
How loud is it?
Android Authority flagged noise as the primary downside — it's noticeably louder than competing flagships while vacuuming at comparable power. Dock operations (emptying, mop washing) are in the normal range. If you run cleanings while you're home, this is worth weighing.
Should S1 Pro owners upgrade?
Only if carpet is your pain point. The S2's carpet deep cleaning jumps from 61% to 87% and hair tangling drops to zero, but stain mopping and navigation speed both regressed versus the S1. Mostly-hard-floor homes are arguably better served keeping the S1 Pro.

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