Pick the Roborock Saros 20 if you want the slimmer robot, more suction, better threshold climbing and a lower price, at $1,479.99 on Roborock's store. Pick the eufy Omni S2 if mopping is your main job and you want a self cleaning roller mop and a 68 day dust store, at $1,599.99 list or less on sale. On a tighter budget, both brands sell an $799.99 model.
Which should you pick?
- PriceRoborock Saros 20
Roborock listed the Saros 20 at $1,479.99 Saros 20 page ↗. eufy listed the Omni S2 at $1,599.99 Omni S2 page ↗, though TechRadar saw it at $1,279.99 on Amazon during a sale TechRadar review ↗.
- Mopping hardwareeufy Omni S2
The Omni S2 uses a HydroJet 2.0 roller mop that cleans itself as it runs, with 15 N of pressure Omni S2 page ↗. TechRadar called its mopping strong TechRadar review ↗.
- SuctionRoborock Saros 20
Roborock rates the Saros 20 at 36,000 Pa Saros 20 page ↗. eufy rates the Omni S2 at 30,000 Pa Omni S2 page ↗.
- Thresholds and rugsRoborock Saros 20
Roborock states double thresholds up to 3.46 in Saros 20 page ↗, and Vacuum Wars measured a record 57 mm single step Vacuum Wars Saros 20 ↗. eufy states 1.4 in single and 1.6 in double Omni S2 page ↗.
- Getting under furnitureRoborock Saros 20
The Saros 20 is 3.14 in tall Saros 20 page ↗. eufy lists the Omni S2 at 98 mm, about 3.9 in Omni S2 page ↗.
- Dock capacityeufy Omni S2
eufy says its 3 L dust store lasts 68 days Omni S2 page ↗. Roborock's page does not state a capacity in days Saros 20 page ↗.
- WarrantyRoborock Saros 20
Roborock states a 1 year limited warranty with extended options Saros 20 page ↗. eufy's page mentions a warranty but gives no length Omni S2 page ↗.
Side by side
| Feature | eufy Omni S2 | Roborock Saros 20 |
|---|---|---|
| Price (checked Oct 9, 2026) | $1,599.99 Omni S2 page ↗ | $1,479.99 sale, $1,599.99 regular Saros 20 page ↗ |
| Suction | 30,000 Pa Omni S2 page ↗ | 36,000 Pa Saros 20 page ↗ |
| Mop type | HydroJet 2.0 self cleaning roller, 15 N Omni S2 page ↗ | Rotating mops, up to 13 N, FlexiArm edge mop Saros 20 page ↗ |
| Mop wash and dry | Hot water wash, temperature not stated; hot air dry Omni S2 page ↗ | Up to 212°F wash, up to 131°F air dry Saros 20 page ↗ |
| Dock | Empty, refill, detergent, wastewater; 3 L dust, 68 days Omni S2 page ↗ | Empty, refill, detergent, self cleaning Saros 20 page ↗ |
| Obstacle avoidance | 3D ToF, RGB camera, LED; 200+ objects Omni S2 page ↗ | 3D sensors, RGB camera, StarSight; 300+ objects Saros 20 page ↗ |
| Thresholds | 1.4 in single, 1.6 in double Omni S2 page ↗ | 1.77 in single, 3.46 in double Saros 20 page ↗ |
| Robot height | 98 mm per eufy; 85 mm per TechRadar Omni S2 page ↗ TechRadar review ↗ | 3.14 in Saros 20 page ↗ |
| Carpet | Auto adjusts for carpet up to 2 in; mop lifts Omni S2 page ↗ | Carpet piles up to 1.18 in, set in app Saros 20 page ↗ |
| Runtime | Up to 180 min per TechRadar TechRadar review ↗ | Not stated; 6,400 mAh battery Saros 20 page ↗ |
| Warranty | Length not stated; 30 day money back Omni S2 page ↗ | 1 year limited, extended options; 30 day returns Saros 20 page ↗ |
From each vendor’s own pages, checked Oct 9, 2026. Prices change often.
Which models we compared
eufy and Roborock both sell robots from a few hundred dollars to over $1,500. We compared their current flagship vacuum and mop combos, because that is where most buyers searching this matchup land. On October 9, 2026, eufy's US store listed the Omni S2 at $1,599.99 Omni S2 page ↗ and Roborock's US store listed the Saros 20 at $1,479.99, down from $1,599.99 Saros 20 page ↗.
Both are worth watching for deals. TechRadar's July 2026 review found the Omni S2 at $1,279.99 on Amazon during a Prime sale and $1,399.99 at several other retailers TechRadar review ↗. Vacuum Wars listed the Saros 20 at $944.87 on Amazon, with limited stock Vacuum Wars Saros 20 ↗. Roborock's own page showed the Saros 20 as both out of stock and in stock on the day we checked, so availability may vary Saros 20 page ↗.
Mopping: roller vs spinning pads
This is the biggest design difference. The Omni S2 uses a HydroJet 2.0 roller mop that spins at 240 RPM with 15 N of downward pressure and cleans itself as it runs, using electrolyzed water Omni S2 page ↗. eufy's dock washes the roller with hot water and dries it with hot air, though it does not state a temperature Omni S2 page ↗. TechRadar's reviewer saw it lift a dried ketchup smear from a wood floor TechRadar review ↗.
The Saros 20 uses a rotating mop module with up to 13 N of pressure and a FlexiArm that pushes a mop and side brush into corners Saros 20 page ↗. Its dock washes mops at up to 212°F and dries them at up to 131°F Saros 20 page ↗. Vacuum Wars rated its mopping strong, with a stain score of 116 against an average of 94 and below average water left on the floor Vacuum Wars Saros 20 ↗.
If mopping is the main reason you are buying, the roller mop is the more interesting hardware. If you mop less than you vacuum, the Saros 20's mops are proven and use little water Vacuum Wars Saros 20 ↗.
Vacuuming, carpets and getting around
Roborock rates the Saros 20 at 36,000 Pa and eufy rates the Omni S2 at 30,000 Pa Saros 20 page ↗ Omni S2 page ↗. Ratings are not lab results, though. Vacuum Wars measured 89% carpet deep clean and 88% pet hair pickup for the Saros 20, with zero hair tangling Vacuum Wars Saros 20 ↗. TechRadar found the Omni S2 clearly better than its predecessor, passing oat and crumb tests in higher suction modes with two passes, while lower settings flicked oats on hard floors TechRadar review ↗.
On carpets, eufy says the S2 adjusts suction and its own height for carpets up to 2 inches thick and lifts the mop Omni S2 page ↗. Roborock's carpet mode handles piles up to 1.18 inches and must be switched on in the app Saros 20 page ↗.
For thresholds and furniture, the Saros 20 has the edge. Roborock states 3.46 inch double thresholds and a 3.14 inch tall body Saros 20 page ↗, and Vacuum Wars measured a record 57 mm single step Vacuum Wars Saros 20 ↗. eufy lists 1.4 inch single and 1.6 inch double thresholds and a 98 mm robot height Omni S2 page ↗, although TechRadar measured 85 mm and saw it clear 42 mm thresholds TechRadar review ↗.
For obstacles, eufy says the S2 recognizes over 200 types and Roborock says over 300 Omni S2 page ↗ Saros 20 page ↗. Vacuum Wars recorded 17 of 24 objects avoided by the Saros 20, slightly above average Vacuum Wars Saros 20 ↗. TechRadar saw the S2 avoid a shoe, sock and USB cable, but also noted occasional navigation problems TechRadar review ↗.
Both apps get good marks. TechRadar praised the eufy app for virtual furniture, room editing, multiple floor maps, a child and pet lock and off peak charging TechRadar review ↗. Vacuum Wars called the Roborock app detailed and noted Matter support and voice assistant compatibility Vacuum Wars Saros 20 ↗.
On a tighter budget
Both brands sell a mid priced model at the same $799.99. eufy's Omni C28 has 15,000 Pa suction, a HydroJet self cleaning roller mop and a 5 in 1 station that empties, washes, refills and hot air dries Omni C28 page ↗. Roborock's Qrevo CurvX has 22,000 Pa suction, dual spinning mops, 176°F mop washing and a retractable LiDAR, at $799.99 down from $1,499.99 Qrevo CurvX page ↗.
Count running costs too. TechRadar flagged ongoing costs for the Omni S2's proprietary detergent and fragrance refills TechRadar review ↗, and eufy's store sells bundles that add replacement kits and cleaning solution eufy store ↗. Roborock's Saros 20 dock also dispenses detergent automatically, so budget for refills with either brand Saros 20 page ↗.
- Mopping first, big dust store: eufy Omni S2
- Thresholds, low furniture, lower price: Roborock Saros 20
- Same price midrange pair: eufy Omni C28 or Roborock Qrevo CurvX at $799.99
How we compared them
We used eufy's and Roborock's US product pages and store listings, checked October 9, 2026, plus independent reviews from TechRadar and Vacuum Wars Omni S2 page ↗ Saros 20 page ↗ TechRadar review ↗ Vacuum Wars Saros 20 ↗ eufy store ↗ Omni C28 page ↗ Qrevo CurvX page ↗ Roborock store ↗. Prices are what each maker's store showed that day and change often. We have not tested these robots hands on yet. Hands on testing is in progress; we'll update this page with results.
Try them
eufy Omni S2
Robot vacuum with HydroJet roller mop and 12 in 1 UniClean station.
Roborock Saros 20
Flagship robot vacuum and mop with anti tangle brush, pet camera and full dock.
We may earn a commission when you sign up through links on this page. It never changes our picks. How we pick
Questions people ask
Is eufy as good as Roborock?
At the top end they are close. The eufy Omni S2 has the more distinctive roller mop and a bigger dust store Omni S2 page ↗, while the Roborock Saros 20 has more rated suction, a slimmer body and better threshold climbing Saros 20 page ↗.
Which mops better, a roller or spinning pads?
eufy's roller cleans itself as it mops Omni S2 page ↗. Roborock's spinning mops scored above average for stains with low water use in Vacuum Wars' tests Vacuum Wars Saros 20 ↗. Both docks wash and hot air dry the mops Omni S2 page ↗ Saros 20 page ↗.
Do both empty themselves?
Yes. Both docks empty dust, refill water and add detergent Omni S2 page ↗ Saros 20 page ↗. eufy says its dust store lasts up to 68 days Omni S2 page ↗.
Which fits under lower furniture?
The Saros 20 at 3.14 inches Saros 20 page ↗. eufy lists the Omni S2 at 98 mm, about 3.9 inches Omni S2 page ↗.
What warranty do they have?
Roborock states a 1 year limited warranty with paid extensions Saros 20 page ↗. eufy's page says Hassle Free Warranty without a length and offers a 30 day money back guarantee Omni S2 page ↗.
Is there a cheaper eufy or Roborock?
Yes. The eufy Omni C28 and Roborock Qrevo CurvX both sold for $799.99 on October 9, 2026 Omni C28 page ↗ Qrevo CurvX page ↗.
Where this comes from
Checked Oct 9, 2026. Vendor pages describe their own products; independent sources add outside views. We have not tested these tools hands on yet.
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