Eufy Omni S2 vs Roborock Saros 20
Researched by Riley Hart · prices checked Oct 26, 2026
As of Oct 26, 2026, the Eufy Omni S2 costs $1,600 and the Roborock Saros 20 costs $1,600. The Roborock Saros 20 scores higher in our ranking (5.8 vs 5.7 out of 10). Pick the Eufy Omni S2 for cluttered homes with carpet and pets. Pick the Roborock Saros 20 for low furniture and tall thresholds.
- Suction
- 30,000 Pa
- Navigation
- 3D ToF and camera
- Mopping
- Roller mop
- Runtime
- Up to 180 min
A good fit for busy homes with carpet, pets and clutter on the floor, since it was the only robot here to avoid all 24 obstacles in Vacuum Wars testing and it never tangled hair. Mopping is fine for daily grime but several reviewers found it weak on tough dried stains. Skip it if stain removal matters most or if you mind paying for Eufy's own detergent and fragrance refills.
Full Eufy Omni S2 review →- Suction
- 36,000 Pa
- Navigation
- 3D ToF and camera
- Mopping
- Spinning pads
- Runtime
- About 200 min
A strong pick for mixed carpet and hard floor homes with low furniture and tall door thresholds, since it is under 3.2 in tall and climbs higher steps than any robot Vacuum Wars has tested. Reviewers rate its suction and edge cleaning highly but split on mopping, and Tom's Guide found the pads streaky. If spotless mopping is your main goal, a roller mop model may suit you better.
Full Roborock Saros 20 review →Side by side
| Eufy Omni S2 | Roborock Saros 20 | |
|---|---|---|
| Price | $1,600 | $1,600 |
| 3 year cost | $2,080 | $1,600 |
| Our score | 5.7/10 | 5.8/10 |
| Rank in Floors | #22 | #21 |
| Status | on sale | on sale |
| Warranty | n/a | 1 year limited (Roborock US store) |
| Suction | 30,000 Pa (brand claim), AeroTurbo 2.0 | 36,000 Pa (brand claim); Vacuum Wars measured 15 CFM airflow |
| Navigation | CleanMind AI with 3D MatrixEye 2.0 (ToF sensors plus camera), 3D mapping | StarSight Autonomous System 2.0 with 3D ToF sensors and an RGB camera, no LiDAR turret |
| Obstacle avoidance | Detects obstacles over 1 cm and 200+ object types (brand claim); Vacuum Wars scored a perfect 24 of 24 | Recognizes over 300 obstacle types (brand claim); Vacuum Wars scored 17 of 24 objects avoided |
| Mopping | Yes, HydroJet 2.0 self cleaning roller mop, 15 N pressure, extends to edges and lifts 28 mm on carpet | Yes, dual spinning pads with up to 13 N pressure, FlexiArm extending pad, 20 mm lift on carpet |
| Self empty | Yes, auto empties into a 2.5 L bag rated for up to 68 days | Yes, auto empties into a disposable bag; Roborock says a bag lasts up to 65 days |
| Dock features | UniClean station washes the roller at 140°F, dries at 131°F, doses detergent, auto refill and drain options, plus a fragrance diffuser; 3 L clean and 2 L dirty tanks | RockDock washes pads with water up to 212°F, dries at 131°F, auto refills water, doses detergent and dries the dust bag |
| Runtime | Up to 180 min (TechRadar); Vacuum Wars estimated about 1,088 sq ft per charge | 6,400 mAh battery; BGR cites about 200 min per charge and about 150 min to recharge |
| Dustbin | Onboard bin size not published; dock bag 2.5 L | 260 mL onboard bin (Vacuum Wars) |
| Height | 3.4 in (85 mm) per TechRadar | 3.14 in (79.8 mm) robot height per Roborock |
| Pet hair | Vacuum Wars measured 88.5% flattened pet hair pickup and 0% hair wrap with DuoSpiral brushes | Vacuum Wars measured 88% flattened pet hair pickup and 0% hair wrap |
| App | Eufy app with Siri, Alexa, Google Home and Matter support | Roborock app with Matter, Alexa and Google Home support plus built in voice control |
| Threshold | Up to 1.65 in double and 1.38 in single thresholds (brand claim); Vacuum Wars cleared 32 mm on 1 of 3 tries | Up to 3.46 in double layer thresholds with AdaptiLift Chassis 3.0 (brand claim); Vacuum Wars cleared a 57 mm single step |
| Best for | cluttered homes with carpet and pets | low furniture and tall thresholds |
| Skip if | you need strong stain removal | mopping is your top priority |
Specs are maker claims unless a reviewer is named. Prices from the stores we link, checked daily.
What reviewers found
Eufy Omni S2
- Vacuum Wars (3.91/5): 87% carpet sand removal (S1 managed 61%), 88.5% flattened pet hair, 0% hair wrap and a perfect 24 of 24 obstacles; dried stain mopping and navigation speed were below average. Source
- TechRadar: Much better vacuuming than the Omni S1 with strong mopping and reliable navigation; about 55 dB in Quiet mode and 70 dB in Cyclone mode; one unit developed a connection fault and was replaced. Rated 5/5 design, 4.5/5 performance and 3.5/5 value, with no single overall score. Source
- Android Authority: Called it one of the best robot vacuums the reviewer has tested, with zero collisions and no hair tangles, but noticeably louder than other recent flagships. Source
Roborock Saros 20
- Vacuum Wars (3.81/5): Lab tests found 89% sand removal from carpet, 88% flattened pet hair pickup, 0% hair wrap, 17 of 24 obstacles avoided, a record 57 mm threshold climb and an above average combined mopping score; battery coverage was slightly below average at about 1,038 sq ft per charge. Source
- CGMagazine (8.5/10): Performed strongly on pet hair, sand and fine dust on carpet and hard floors and fit under low furniture; reviewer flagged middling battery life, a small bin and trouble with loose cables. Source
- Tom's Guide: Picked up 100% of cereal and kitty litter on carpet and 70% of pet hair on carpet, but mopping left floors streaky and patchy and the pads fell off once crossing a cable. Source
Pros and cons
Eufy Omni S2
Pros
- Perfect 24 of 24 obstacle avoidance in Vacuum Wars testing
- Big carpet cleaning gain over the Omni S1
- No hair wrap in testing
- Self cleaning roller mop and drying dock
- Published replacement interval makes running costs predictable
Cons
- Expensive at $1,599.99 list
- Weak on dried stains compared with the S1
- Louder than rival flagships per Android Authority
- Detergent and fragrance refills are proprietary
- Slower navigation and lower coverage per charge
Roborock Saros 20
Pros
- Very low 3.14 in body fits under most furniture
- Record threshold climbing in Vacuum Wars testing
- Strong suction and carpet pickup
- Excellent edge cleaning with extending arm and pad
- Dock washes pads in near boiling water
Cons
- Expensive at $1,599.99
- Mopping left streaks in Tom's Guide testing
- Small 260 mL onboard bin
- Still catches cables and gets stuck at times
Questions buyers ask
Which is better, the Eufy Omni S2 or the Roborock Saros 20?
The Roborock Saros 20 scores higher in our ranking (5.8 vs 5.7 out of 10). Pick the Eufy Omni S2 for cluttered homes with carpet and pets. Pick the Roborock Saros 20 for low furniture and tall thresholds.
What is the difference between the Omni S2 and the Saros 20?
Suction: 30,000 Pa (brand claim), AeroTurbo 2.0 on the Omni S2, 36,000 Pa (brand claim); Vacuum Wars measured 15 CFM airflow on the Saros 20. Navigation: CleanMind AI with 3D MatrixEye 2.0 (ToF sensors plus camera), 3D mapping on the Omni S2, StarSight Autonomous System 2.0 with 3D ToF sensors and an RGB camera, no LiDAR turret on the Saros 20. Obstacle avoidance: Detects obstacles over 1 cm and 200+ object types (brand claim); Vacuum Wars scored a… on the Omni S2, Recognizes over 300 obstacle types (brand claim); Vacuum Wars scored 17 of 24 objects… on the Saros 20.
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