Eufy Omni S1 Pro vs Eufy Omni S2
Quick take: The Eufy Omni S1 Pro costs $355 less; the Eufy Omni S2 has stronger suction (30,000 vs 8,000 Pa); the Eufy Omni S1 Pro runs longer per charge (220 vs 180 min).
Which one to buy
Eufy's newer Omni S2 fixes the S1 Pro's carpet problem and quietly gives back some of its mopping. That trade, plus the fact that the S1 Pro is discontinued, frames the whole decision.
On carpet the S2 is a different machine. Owners and testers cite an 87% deep-clean result against the S1 Pro's 61%, zero hair tangles from the split brush, and a 28 mm mop lift that keeps rugs dry. It's rated at 30,000 Pa against 8,000 Pa, posted a perfect 24-of-24 obstacle-avoidance run, washes its roller at 140°F where the S1 Pro has no hot-water wash, and goes about 68 days between dock empties. Reviewers even like the scent diffuser.
On hard-floor stains the older robot wins. The S2 meters water so sparingly that its dried-stain score came in about 20% below average, and S2 reviewers say outright that the S1 Pro mopped stains better. S1 Pro owners describe its pressurized roller as embarrassing pad-style robots on hardwood and tile, with an ozone cycle that keeps the dock from smelling. Its flaws are carpet, rugs it gets stuck on, grime lines along baseboards, software glitches, and proprietary detergent.
The S2 has its own complaints: it's slow around the house, louder than rival flagships while vacuuming by owners' accounts despite a 57 dB rating, it failed a 32 mm threshold, and it keeps you buying Eufy detergent and fragrance refills. For any home with real carpet, it's the one to buy. For an all-hard-floor home, a discounted S1 Pro still mops better, but buy it only with the 2-year warranty honored, since the model is out of production.
Eufy Omni S1 Pro
Buy the Omni S1 Pro only for a home with no real carpet, at a discount, and with the 2-year warranty honored, since it's discontinued.
Eufy Omni S2
Worth it if you have carpet, pets or a cluttered floor, and want the current model with near-flawless obstacle avoidance more than the strongest stain mopping.
| Spec | Eufy Omni S1 Pro | Eufy Omni S2 |
|---|---|---|
| Price | ~$945 | ~$1,300 |
| Type | Robot Vacuum & Mop | Robot Vacuum & Mop |
| Suction | 8000 Pa | 30000 Pa |
| Battery | 220 min | 180 min |
| Navigation | LiDAR + Camera | Camera |
| Filtration | — | — |
| Cordless | Yes | Yes |
| Bagged | — | — |
| Noise | 65 dB | 57 dB |
| Dustbin | 250 ml | 330 ml |
| Water tank | 300 ml | 330 ml |
| Self-empty dock | Yes | Yes |
| Auto mop washing | Yes | Yes |
| Hot water washing | No | Yes |
| Obstacle avoidance | Yes | Yes |
| Carpet detection | Yes | Yes |
| Auto mop lifting | Yes | Yes |
| Multi-floor mapping | Yes | Yes |
| App control | Yes | Yes |
| Dimensions | 13.7 x 12.8 x 3.8 in | 13.7 x 12.8 x 3.8 in |
| Weight | 10.5 lbs | 11.0 lbs |
| Warranty | 2 years | 2 years |
Pros & cons
Eufy Omni S1 Pro
- ✓Roller mop is washed and squeegeed in real time — it never drags dirty water across the floor
- ✓owners call the mopping the best in class: lifts 48-hour dried stains without streaks
- ✓Sleek 3.78-inch body slides under furniture that blocks turret robots
- ✓Ozone-treated water sanitizes without detergent smells
- ✓2-year Anker warranty with responsive US support
- ✗8000Pa suction and 250ml bin make it a mopping-first machine — carpet homes should look elsewhere
- ✗Dirty water tank is built into the dock and awkward to carry to a sink
- ✗No Matter or advanced smart home integration yet
- ✗Launch price was $1499 and it still sells above most spinning-pad rivals
Eufy Omni S2
- ✓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
- ✗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
Eufy Omni S1 Pro vs Eufy Omni S2: common questions
Does the Omni S2 mop better than the Omni S1 Pro?▾
Not on dried stains. Testers found the S2 uses very little water and scored about 20% below average on stain removal, and they say the S1 Pro did better. For everyday light mopping, reviewers still describe the S2 leaving shiny, streak-free floors.
Is the Omni S2 worth choosing over the discontinued S1 Pro?▾
If you have carpet, yes. Its deep-clean result jumps from 61% to 87%, it has zero hair tangles, and it avoided all 24 test obstacles. In an all-hard-floor home the S1 Pro mops stains better, but it's no longer made.
Which is quieter, the Omni S1 Pro or the Omni S2?▾
On paper the S2 is rated at 57 dB against the S1 Pro's 65 dB, but S2 owners and reviewers call it noticeably louder than competing flagships while vacuuming. Schedule either for when you're out if noise bothers you.