# Eufy Omni S2 vs Narwal Flow 2

As of Oct 31, 2026, the Eufy Omni S2 costs $1,600 and the Narwal Flow 2 costs $1,300, so the Narwal Flow 2 is $300 cheaper. The Narwal Flow 2 scores higher in our ranking (6.3 vs 5.6 out of 10). Pick the Eufy Omni S2 for cluttered homes with carpet and pets. Pick the Narwal Flow 2 for pet homes with mostly hard floors.

Prices checked Oct 31, 2026. HTML version: https://robotsforthat.com/vs/eufy-omni-s2-vs-narwal-flow-2/

## Side by side

| | Eufy Omni S2 | Narwal Flow 2 |
|---|---|---|
| Price | $1,600 | $1,300 |
| 3 year cost | $2,080 | $1,300 |
| Our score | 5.6/10 | 6.3/10 |
| Rank in Floors | #41 | #31 |
| Status | on sale | on sale |
| Warranty | n/a | 1 year limited (Narwal warranty policy for purchases outside the EU and Switzerland) |
| Suction | 30,000 Pa (brand claim), AeroTurbo 2.0 | 31,000 Pa (brand claim); Vacuum Wars measured 1.92 kPa and 18 CFM, above average |
| Navigation | CleanMind AI with 3D MatrixEye 2.0 (ToF sensors plus camera), 3D mapping | Laser based 3D mapping with dual 1080p RGB cameras and a 10 TOPS AI chip |
| Obstacle avoidance | Detects obstacles over 1 cm and 200+ object types (brand claim); Vacuum Wars scored a perfect 24 of 24 | TwinAI Dodge with dual cameras; Vacuum Wars scored 20 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, self refreshing track roller mop with 12 N pressure and 140°F water, lifts 10 mm on carpet |
| Self empty | Yes, auto empties into a 2.5 L bag rated for up to 68 days | Yes, into a 2.5 L disposable bag; Narwal says a bag lasts up to 120 days without pets or 90 days with pets |
| 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 | Washes the mop at 212°F, dries it at 104°F, doses detergent; Narwal also sells a version with auto refill and drainage |
| Runtime | Up to 180 min (TechRadar); Vacuum Wars estimated about 1,088 sq ft per charge | 7,000 mAh battery; Vacuum Wars measured 38 min in a studio vacuum and mop run, while 9to5Google cleaned about 1,300 sq ft without a recharge |
| Dustbin | Onboard bin size not published; dock bag 2.5 L | 300 mL onboard bin (Vacuum Wars) |
| Height | 3.4 in (85 mm) per TechRadar | 3.74 in (95 mm) per Narwal |
| 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 | Narwal app with Siri, Alexa and Google Assistant; Vacuum Wars lists Matter support, but Narwal's product page does not |
| 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 1.57 in (40 mm) per Narwal; Vacuum Wars cleared 32 mm easily and 38 mm on a second try |
| Best for | cluttered homes with carpet and pets | pet homes with mostly hard floors |
| Skip if | you need strong stain removal | you need a robot under 3.5 in tall |

## 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](https://vacuumwars.com/eufy-s2-review/)
- 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](https://www.techradar.com/home/robot-vacuums/eufy-omni-s2-review)
- 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](https://www.androidauthority.com/anker-eufy-robot-vacuum-omni-s2-review-3641831)

### Narwal Flow 2

- Vacuum Wars (3.88/5): Lab tests found 84% sand removal from carpet, 88% flattened pet hair pickup, 0% hair wrap and 20 of 24 obstacles avoided; a retest after a firmware update put mopping well above average, but the studio vacuum and mop run lasted only 38 minutes. [Source](https://vacuumwars.com/narwal-flow-2-review/)
- Tom's Guide: Picked up 100% of kitty litter on both floors, 100% of pet hair on hardwood and 80% on carpet, but only 30% and 20% of cereal; reviewer said edges and corners need manual cleaning and it does not live up to its price. [Source](https://www.tomsguide.com/home/the-narwal-flow-2-looks-slick-but-its-performance-misses-the-mark-for-a-usd1-500-robot-vacuum)
- 9to5Google: Cleaned about 1,300 sq ft with back to back vacuum and mop passes without stopping to recharge; reviewer rated it roughly equal to the Roborock Saros 20 but noted the taller body. [Source](https://9to5google.com/2026/06/24/narwal-flow-2-review/)

## Questions buyers ask

### Which is better, the Eufy Omni S2 or the Narwal Flow 2?

The Narwal Flow 2 scores higher in our ranking (6.3 vs 5.6 out of 10). Pick the Eufy Omni S2 for cluttered homes with carpet and pets. Pick the Narwal Flow 2 for pet homes with mostly hard floors.

### Which is cheaper?

The Narwal Flow 2 at $1,300, versus $1,600 for the Eufy Omni S2, checked Oct 31, 2026. Over 3 years with running costs: $2,080 vs $1,300.

### What is the difference between the Omni S2 and the Flow 2?

Suction: 30,000 Pa (brand claim), AeroTurbo 2.0 on the Omni S2, 31,000 Pa (brand claim); Vacuum Wars measured 1.92 kPa and 18 CFM, above average on the Flow 2. Navigation: CleanMind AI with 3D MatrixEye 2.0 (ToF sensors plus camera), 3D mapping on the Omni S2, Laser based 3D mapping with dual 1080p RGB cameras and a 10 TOPS AI chip on the Flow 2. Obstacle avoidance: Detects obstacles over 1 cm and 200+ object types (brand claim); Vacuum Wars scored a… on the Omni S2, TwinAI Dodge with dual cameras; Vacuum Wars scored 20 of 24 objects avoided on the Flow 2.

Full reviews: [Eufy Omni S2](https://robotsforthat.com/robot/eufy-omni-s2/index.md), [Narwal Flow 2](https://robotsforthat.com/robot/narwal-flow-2/index.md)