# Eureka J15 Max Ultra vs Narwal Flow 2

As of Oct 31, 2026, the Eureka J15 Max Ultra costs $1,200 and the Narwal Flow 2 costs $1,300, so the Eureka J15 Max Ultra is $100 cheaper. The Narwal Flow 2 has a published review score and ranks #31 in our robot vacuums ranking; the Eureka J15 Max Ultra is not scored yet. Pick the Eureka J15 Max Ultra for carpet heavy homes with pets. Pick the Narwal Flow 2 for pet homes with mostly hard floors.

Prices checked Oct 31, 2026. HTML version: https://robotsforthat.com/vs/eureka-j15-max-ultra-vs-narwal-flow-2/

## Side by side

| | Eureka J15 Max Ultra | Narwal Flow 2 |
|---|---|---|
| Price | $1,200 | $1,300 |
| 3 year cost | $1,200 | $1,300 |
| Our score | Not scored yet | 6.3/10 |
| Rank in Floors | #79 | #31 |
| Status | on sale | on sale |
| Warranty | 2 years (Eureka) | 1 year limited (Narwal warranty policy for purchases outside the EU and Switzerland) |
| Suction | Eureka lists both 22,000 Pa and 21,600 Pa on the same page | 31,000 Pa (brand claim); Vacuum Wars measured 1.92 kPa and 18 CFM, above average |
| Navigation | Single line laser, RGB camera, infrared sensors and LED light, IntelliView AI 2.0 (Eureka); Android Authority called navigation great | Laser based 3D mapping with dual 1080p RGB cameras and a 10 TOPS AI chip |
| Obstacle avoidance | Dual Vision System with FHD and infrared sensors (Eureka); Tom's Guide saw it catch lamp wires and shoelaces and skip about 168 sq ft on one run | TwinAI Dodge with dual cameras; Vacuum Wars scored 20 of 24 objects avoided |
| Mopping | Two mop pads with ScrubExtend arm, detects wet spills over 1.5 mm (Eureka); Tom's Guide called mopping excellent but slow | Yes, self refreshing track roller mop with 12 N pressure and 140°F water, lifts 10 mm on carpet |
| Self empty | Yes, 3 L dust bag (Eureka) | 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 | Mop washing and drying, clean water refill, dirty water drain, base tray cleaning; 4 L clean and 3.4 L dirty tanks (Eureka); detergent added by hand (Android Authority) | 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 360 min (Eureka); Tom's Guide used 35% battery for 602 sq ft in 72 min; 6,400 mAh | 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 |
| Height | 4.33 in (Eureka) | 3.74 in (95 mm) per Narwal |
| Pet hair | FlexiRazor blades cut hair off the roller at 400 strokes per min (Eureka); Android Authority saw no hair tangles | Vacuum Wars measured 88% flattened pet hair pickup and 0% hair wrap |
| App | Eureka app with pet video calls; Alexa, Google Assistant and Siri (Eureka) | Narwal app with Siri, Alexa and Google Assistant; Vacuum Wars lists Matter support, but Narwal's product page does not |
| Threshold | 3.3 cm standard, 4.5 cm double layer (Eureka) | Up to 1.57 in (40 mm) per Narwal; Vacuum Wars cleared 32 mm easily and 38 mm on a second try |
| Noise | 62 dB(A) at lowest level (Eureka) | n/a |
| Dustbin | n/a | 300 mL onboard bin (Vacuum Wars) |
| Best for | carpet heavy homes with pets | pet homes with mostly hard floors |
| Skip if | you want fast runs or pay full list price | you need a robot under 3.5 in tall |

## What reviewers found

### Eureka J15 Max Ultra

- Tom's Guide: Vacuumed 602 sq ft in 72 minutes, leaving 65% battery. Mopping about 350 sq ft took nearly two hours. Skipped about 168 sq ft on one run and caught on lamp wires and carpet corners. Cited $1,199.99 at Eureka. [Source](https://www.tomsguide.com/home/smart-home/eureka-j15-max-ultra-robot-vacuum-review)
- Android Authority: Strong on carpets and pulled pine needles from rugs. No hair tangles. Water tanks needed swapping about every 1,000 sq ft. Mop pads popped off magnetically on bath mats, once four times in a day. Called it the best Eureka it has tested. [Source](https://www.androidauthority.com/eureka-j15-max-ultra-review-3599189/)

### 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 Eureka J15 Max Ultra or the Narwal Flow 2?

The Narwal Flow 2 has a published review score and ranks #31 in our robot vacuums ranking; the Eureka J15 Max Ultra is not scored yet. Pick the Eureka J15 Max Ultra for carpet heavy homes with pets. Pick the Narwal Flow 2 for pet homes with mostly hard floors.

### Which is cheaper?

The Eureka J15 Max Ultra at $1,200, versus $1,300 for the Narwal Flow 2, checked Oct 31, 2026. Over 3 years with running costs: $1,200 vs $1,300.

### What is the difference between the J15 Max Ultra and the Flow 2?

Suction: Eureka lists both 22,000 Pa and 21,600 Pa on the same page on the J15 Max Ultra, 31,000 Pa (brand claim); Vacuum Wars measured 1.92 kPa and 18 CFM, above average on the Flow 2. Navigation: Single line laser, RGB camera, infrared sensors and LED light, IntelliView AI 2.0… on the J15 Max Ultra, Laser based 3D mapping with dual 1080p RGB cameras and a 10 TOPS AI chip on the Flow 2. Obstacle avoidance: Dual Vision System with FHD and infrared sensors (Eureka); Tom's Guide saw it catch lamp… on the J15 Max Ultra, TwinAI Dodge with dual cameras; Vacuum Wars scored 20 of 24 objects avoided on the Flow 2.

Full reviews: [Eureka J15 Max Ultra](https://robotsforthat.com/robot/eureka-j15-max-ultra/index.md), [Narwal Flow 2](https://robotsforthat.com/robot/narwal-flow-2/index.md)