Robot Vacuums / eufy Robot Vacuum Omni S2 vs Narwal Flow Robot Vacuum and Mop
eufy Robot Vacuum Omni S2 vs Narwal Flow Robot Vacuum and Mop
Narwal Flow Robot Vacuum and Mop
The best mop in the category on a track that rinses itself — buy it on discount, never at list.
Wins overall by 0.5 points
Quick Verdict
A 0.5-point gap makes the Narwal Flow Robot Vacuum and Mop the straightforward choice here. The best mop in the category on a track that rinses itself — buy it on discount, never at list.
The eufy Robot Vacuum Omni S2 and Narwal Flow Robot Vacuum and Mop are both closely matched robot Vacuum models, and the Narwal Flow Robot Vacuum and Mop is $500 cheaper than the eufy Robot Vacuum Omni S2 ($899.99 vs $1,399.99). On Mopping, the Narwal Flow Robot Vacuum and Mop leads (9.5 vs 6.5/10) — whether the mop scrubs or just drags: pad versus spinning versus washed roller, down-pressure, dried-stain removal and how wet the floor is left. Vacuum-only robots score 0.. On Value, the Narwal Flow Robot Vacuum and Mop leads (8.0 vs 5.5/10) — tested cleaning performance and dock automation against the real street price and the year-one consumables bill.. On Obstacle Avoidance, the eufy Robot Vacuum Omni S2 leads (9.5 vs 8.0/10) — real camera or structured-light recognition versus bump-and-turn, scored against published obstacle-course results rather than the number of object types claimed.. Overall, the Narwal Flow Robot Vacuum and Mop scores 7.8/10 across our 8 scoring categories versus 7.3/10 for the eufy Robot Vacuum Omni S2. Below, we break down the full spec sheet, category-by-category scores, and exactly who should buy which one.
Side-by-Side Comparison
| Spec | eufy Robot Vacuum Omni S2 | Narwal Flow Robot Vacuum and Mop |
|---|---|---|
| Price | $1399.99 | $899.99 |
| Release Year | 2026 | 2025 |
| Claimed Suction (Pa) | 30,000 Pa — the biggest claim on this page, and up from 8,000 Pa on the eufy Omni S1 it replaces. Vacuum Wars still scores its mopping about 20% below average, which is the whole argument against reading Pascals as a ranking | 22,000 Pa claimed — the identical number Roborock prints on the Saros 10R, and 12,000 Pa above the SwitchBot S20 that costs the same. The figures are measured differently by every brand and should not be read as a ranking |
| Independent Test Result | Vacuum Wars ranked it #3 overall in their 2026 Top 20 with a perfect 24/24 obstacle score and 87% carpet sand removal against 61% for the S1 — but its dried-stain mopping score of 82 points is about 20% below average, and they measured slower navigation than the S1 | Vacuum Wars ranked the Flow #2 overall: top-7 all-time for mopping, the best battery-efficiency score they have recorded, 0% hair tangling, strong pet-hair pickup. Consumer Reports ran a first-look review. Weak spot: fine hard-floor debris needs multiple passes |
| Navigation & Obstacle Avoidance | 3D MatrixEye 2.0 — computer vision plus structured light recognising 200+ household objects. Perfect 24/24 in Vacuum Wars' obstacle course, matching the Roborock Saros 10R | Semi-recessed 180-degree spinning LiDAR plus dual RGB AI cameras with LED lighting, 200+ object types. Vacuum Wars' complaint is that the avoidance behaviour is barely configurable |
| What the Maker Promises About Pet Waste | eufy markets pet-waste recognition as part of MatrixEye's 200+ object library but publishes no replacement guarantee | Narwal lists pet waste among the objects the dual-camera system recognises but publishes no replacement guarantee if it fails |
| Mop System | HyperStream 2.0 roller mop at 240 rpm with 15 N down-pressure, washed continuously during the run | FlowWash track mop — a belt washed in real time with 113°F water at 12 N of pressure and squeegeed dry as it runs, plus a separate hot dock wash between runs |
| Mop Lift Over Carpet (mm) | 28 mm (1.10 in) on carpet detection — nearly three times the ECOVACS X11's 10 mm and the only lift here that clears a thick pile rug | 12 mm on carpet detection (Narwal's own figure). Enough to clear a flat rug; not enough for high pile |
| Dock Type & Plumbing | Self-empty, hot-water mop wash, hot-air dry, water electrolysis and auto detergent dosing. A separate Auto Refill & Drainage version plumbs into a supply and drain; the standard dock does not | Self-empty plus mop wash and dry. A separate Auto Refill & Drainage version plumbs into a cold supply and a drain; the standard dock does not |
| Dock Mop Wash & Dry | 140°F (60°C) heated wash — TechRadar reports 70°C — then 131°F (55°C) hot-air drying, with built-in water electrolysis (Eco-Clean ozone) and automatic detergent dosing. Sources conflict on the wash temperature; eufy quotes both. The dirty-water tank is still emptied by hand | 176°F (80°C) dock wash for full-chain sterilisation, 104-113°F warm water during the run, 104°F warm-air drying. The dirty-water tank is still emptied and rinsed by hand — no dock here self-cleans that |
| Dock Bags & Running Cost | 2.5 L bag with a 68-day rating, so roughly 5-6 bags a year. TechRadar describes the base as taking generic 2.5 L dust bags rather than a locked proprietary part, which if it holds is a meaningful saving over Roborock and iRobot. Add detergent and fragrance capsules, which are eufy-branded consumables | 2.5 L proprietary bag rated at 120 days, about 3 bags a year — the lowest bag count on this page. Two bags ship in the box. Vacuum Wars notes there is no automatic detergent dispensing, so you top the solution up manually |
| Robot Bin Capacity (ml) | 330 ml | 480 ml |
| Rated Runtime (and at what setting) (min) | Up to 180 minutes across four modes (Quiet, Standard, Turbo, Max) — eufy's figure is the quiet mode. Vacuum Wars measured slower navigation efficiency than the cheaper S1 it replaces | Up to 190 minutes, and Vacuum Wars confirms that figure is the lowest power setting |
| Account, Cloud & Camera Privacy | eufy account required and maps are cloud-synced. Camera on board with remote viewing. eufy is the brand that marketed local-only storage on its security cameras and was then caught uploading footage to the cloud unencrypted, and privacy write-ups note eufy's policy allows sharing personal identifiers with advertising partners — hold its privacy marketing to a higher burden of proof than most | Narwal account required and maps sync to Narwal's cloud. Two cameras on board with in-app remote viewing, so this is a live camera in your home; Narwal states object recognition runs on the robot's own AI chip |
| Warranty | 12 months | 12 months |
| Colors | White | White, Black |
Category Scores
Carpet Cleaning
The eufy Robot Vacuum Omni S2 leads clearly here, 9.0 against 8.0 — a 1.0-point margin on embedded-debris and pet-hair pickup from carpet in independent bench tests, plus anti-tangle brush design — not the manufacturer's Pascal claim.. If that is what you are buying for, the Narwal Flow Robot Vacuum and Mop does not close the gap elsewhere.
Hard Floor & Edges
The eufy Robot Vacuum Omni S2 leads clearly here, 8.5 against 7.5 — a 1.0-point margin on pickup on hard floor including crevices, edges and corners, and whether the side brush or mop actually extends to the skirting.. If that is what you are buying for, the Narwal Flow Robot Vacuum and Mop does not close the gap elsewhere.
Mopping
The Narwal Flow Robot Vacuum and Mop leads clearly here, 9.5 against 6.5 — a 3.0-point margin on whether the mop scrubs or just drags: pad versus spinning versus washed roller, down-pressure, dried-stain removal and how wet the floor is left. Vacuum-only robots score 0.. If that is what you are buying for, the eufy Robot Vacuum Omni S2 does not close the gap elsewhere.
Obstacle Avoidance
The eufy Robot Vacuum Omni S2 leads clearly here, 9.5 against 8.0 — a 1.5-point margin on real camera or structured-light recognition versus bump-and-turn, scored against published obstacle-course results rather than the number of object types claimed.. If that is what you are buying for, the Narwal Flow Robot Vacuum and Mop does not close the gap elsewhere.
Dock Automation
The eufy Robot Vacuum Omni S2 leads clearly here, 9.5 against 8.5 — a 1.0-point margin on how much the dock genuinely does unattended: self-empty, hot-water mop wash, hot-air dry, solution dosing, plumbed refill and drain — minus the jobs it still leaves you.. If that is what you are buying for, the Narwal Flow Robot Vacuum and Mop does not close the gap elsewhere.
Running Cost
The Narwal Flow Robot Vacuum and Mop leads clearly here, 8.0 against 6.5 — a 1.5-point margin on the trap dimension. What the machine costs to feed each year in proprietary bags, mop pads, filters and detergent, and whether a bagless dock lets you spend nothing at all. 10 means it costs nothing to keep running.. If that is what you are buying for, the eufy Robot Vacuum Omni S2 does not close the gap elsewhere.
Privacy & Control
The Narwal Flow Robot Vacuum and Mop leads clearly here, 5.0 against 3.5 — a 1.5-point margin on whether an account and cloud are required, where the maps live, whether there is a camera and where its frames are processed, and the brand's actual privacy and security record.. If that is what you are buying for, the eufy Robot Vacuum Omni S2 does not close the gap elsewhere.
Value
The Narwal Flow Robot Vacuum and Mop leads clearly here, 8.0 against 5.5 — a 2.5-point margin on tested cleaning performance and dock automation against the real street price and the year-one consumables bill.. If that is what you are buying for, the eufy Robot Vacuum Omni S2 does not close the gap elsewhere.
Best For
Choose the eufy Robot Vacuum Omni S2 if…
- • Obstacle Avoidance matters most to you — the eufy Robot Vacuum Omni S2 scores 9.5/10 here (real camera or structured-light recognition versus bump-and-turn, scored against published obstacle-course results rather than the number of object types claimed.).
Choose the Narwal Flow Robot Vacuum and Mop if…
- • Mopping matters most to you — the Narwal Flow Robot Vacuum and Mop scores 9.5/10 here (whether the mop scrubs or just drags: pad versus spinning versus washed roller, down-pressure, dried-stain removal and how wet the floor is left. Vacuum-only robots score 0.).
- • Value matters most to you — the Narwal Flow Robot Vacuum and Mop scores 8.0/10 here (tested cleaning performance and dock automation against the real street price and the year-one consumables bill.).
- • Running Cost matters most to you — the Narwal Flow Robot Vacuum and Mop scores 8.0/10 here (the trap dimension. What the machine costs to feed each year in proprietary bags, mop pads, filters and detergent, and whether a bagless dock lets you spend nothing at all. 10 means it costs nothing to keep running.).
- • Privacy & Control matters most to you — the Narwal Flow Robot Vacuum and Mop scores 5.0/10 here (whether an account and cloud are required, where the maps live, whether there is a camera and where its frames are processed, and the brand's actual privacy and security record.).
- • You want to spend less — it's $500 cheaper.
Pros & Cons
eufy Robot Vacuum Omni S2
Pros
- +28 mm mop lift is in a different league — this is the one robot here you can run on a plush rug without wetting it
- +Perfect 24/24 obstacle score and 87% carpet sand removal, both at the top of Vacuum Wars' 2026 rankings
- +42 mm threshold clearance handles doorway transitions that stop most of this field
- +Fully automated dock: electrolysed water, auto detergent dosing, hot wash and hot dry
Cons
- −The 30,000 Pa headline is the largest claim here and Vacuum Wars scores its mopping about 20% below average — the clearest single proof that Pascals do not predict cleaning
- −$1,399.99 makes it the most expensive robot on this page, and the $699 ECOVACS X11 mops far better
- −eufy's own wash-temperature claim varies between 60°C and 70°C depending on where you look
- −eufy's privacy record is the weakest here: it was caught uploading security-camera footage after marketing local-only storage
- −Vacuum Wars found navigation efficiency slower than the cheaper S1 and threshold climbing inconsistent above 32 mm
Narwal Flow Robot Vacuum and Mop
Pros
- +The best mopping mechanism here: a track mop rinsed in real time genuinely does not smear dirty water around
- +0% hair tangling and the best battery efficiency Vacuum Wars has measured
- +95 mm tall, so it fits under furniture that stops the Roomba Max 705 dead
- +120-day bag rating means roughly three bags a year, the cheapest bagged dock to feed
Cons
- −12 mm mop lift is mid-table — a thick rug will still get damp edges
- −No automatic detergent dosing, so the 'hands-free' dock still wants manual top-ups
- −List price is $1,499.99 and street has swung from about $799 to $1,049 in 2026 — pay list and you have badly overpaid
- −Two always-on cameras with remote viewing, and Narwal's US privacy documentation is thinner than Roborock's or iRobot's
- −Vacuum Wars notes reported quality-control issues and needs several passes on fine hard-floor debris
Shop by Need
FAQs
Is the eufy Robot Vacuum Omni S2 or Narwal Flow Robot Vacuum and Mop better overall?+
Based on our 8-category scoring, the Narwal Flow Robot Vacuum and Mop comes out ahead overall. See the full breakdown in the scores section above — the right pick still depends on which categories matter most for your use case.
Which is better for Mopping, the eufy Robot Vacuum Omni S2 or the Narwal Flow Robot Vacuum and Mop?+
The Narwal Flow Robot Vacuum and Mop scores higher on Mopping (9.5/10 vs 6.5/10) — whether the mop scrubs or just drags: pad versus spinning versus washed roller, down-pressure, dried-stain removal and how wet the floor is left. Vacuum-only robots score 0..
Which is better for Value, the eufy Robot Vacuum Omni S2 or the Narwal Flow Robot Vacuum and Mop?+
The Narwal Flow Robot Vacuum and Mop scores higher on Value (8.0/10 vs 5.5/10) — tested cleaning performance and dock automation against the real street price and the year-one consumables bill..
Which is better for Obstacle Avoidance, the eufy Robot Vacuum Omni S2 or the Narwal Flow Robot Vacuum and Mop?+
The eufy Robot Vacuum Omni S2 scores higher on Obstacle Avoidance (9.5/10 vs 8.0/10) — real camera or structured-light recognition versus bump-and-turn, scored against published obstacle-course results rather than the number of object types claimed..
Which is better for Running Cost, the eufy Robot Vacuum Omni S2 or the Narwal Flow Robot Vacuum and Mop?+
The Narwal Flow Robot Vacuum and Mop scores higher on Running Cost (8.0/10 vs 6.5/10) — the trap dimension. What the machine costs to feed each year in proprietary bags, mop pads, filters and detergent, and whether a bagless dock lets you spend nothing at all. 10 means it costs nothing to keep running..
Is the eufy Robot Vacuum Omni S2 worth the price difference over the Narwal Flow Robot Vacuum and Mop?+
The Narwal Flow Robot Vacuum and Mop is the cheaper option at $899.99 versus $1,399.99. Whether the pricier model is "worth it" depends on how much you value its lead in Mopping.
What's the warranty on the eufy Robot Vacuum Omni S2 vs the Narwal Flow Robot Vacuum and Mop?+
The eufy Robot Vacuum Omni S2 ships with a 12-month warranty; the Narwal Flow Robot Vacuum and Mop ships with a 12-month warranty. Always confirm current terms on the manufacturer's site before buying.
Should I wait for the next model instead of buying either of these?+
If either model is more than two years old, a successor may be close — check the "Latest Model" link on each product page. Otherwise, both are current, well-supported options and there's no strong reason to wait.
Cheaper Option
Roborock Saros 10R — $1099.99
Premium Option
Dreame X50 Ultra — $999.99
Specifications and prices for both products last verified . Scores are calculated from published specifications — see how we compare products.