Narwal Flow 2 Review: A Three-Month Home Test of Mopping, Pet Hair, and Obstacle Avoidance

Introduction

The Narwal Flow 2 is a robot vacuum and mop combo that earned a spot on a Top 20 Robot Vacuums list during initial studio testing. After other higher-performing models were released, it dropped off that list, but the question remained: how does it hold up in a real home over time? To find out, the Flow 2 was placed in a busy family home for three months of regular use.

The main level of that home is about 750 square feet, made up mostly of hard floors and area rugs. Three school-aged children live there, often leaving shoes or art projects on the floor, and a large German Shepherd mix sheds plenty of hair. For this household, the priorities were mopping, pet hair pickup, and obstacle avoidance. The Flow 2 was tested against those exact needs.

Mopping Performance

The strongest feature of the Narwal Flow 2, in this home test, was its mopping. The person using it felt this was the strongest mop she had used in her house to date. There was never leftover residue or streaks on the floor, and it delivered the cleanest mopping job she had seen from a robot so far.

This result was surprising given the initial studio review, where the Flow 2 scored fairly low in stain tests. The original Flow had been strong at mopping, and the Flow 2 brought many upgrades, so the low studio score was unexpected. During the initial setup after bringing the robot home, a significant firmware version update was installed. Brands often release such updates in the early months after a product launch to patch discovered issues. While it is not certain that the firmware update explains the improved mopping, it seems a likely reason, because the mop performed excellently in the home.

Vacuuming Performance and Pet Hair Handling

As a vacuum, the Narwal Flow 2 was also strong. The home consists mainly of hard floors and a low-pile rug, so basic sweeping is not usually difficult, but pet hair is a real challenge. The Flow 2’s dustbin is on the small side at 300 milliliters, which raised some concern about overfilling.

Those concerns did not materialize. The Flow 2 never overfilled, never had trouble with hair clogs, and never had tangles around the brush. This alone was enough to make the user extremely happy with it, since frequent hair clogging and the suction issues it creates can be a genuine problem. As far as sweeping and mopping, the Flow 2 proved to be a great floor cleaner.

Obstacle Avoidance and Navigation

One of the most heavily marketed features of the Flow 2 is its AI obstacle recognition and avoidance. The model was strong in studio testing for obstacle avoidance, and it performed just as well in the home. In fact, it became the undefeated champion in that household. The Flow 2 never once got stuck on a cable, which was a first for this user.

With several family members working and studying at home, extension cords and device cables are a constant factor. The Flow 2 once picked up a small piece of paper that jammed the brush, and it got caught under a chair and stayed there for half a day while the owner was away. Those were the only times the robot needed human intervention. It moved as well in the dark as it did in the daytime, making it a legitimately autonomous floor cleaner in this experience.

The feature that supposedly recognizes and pins the location of valuables to the map when it encounters them on the floor was also tested. This feature needs to be activated in the app, but it never seemed to work for the user. Since it is a new technology, it may need time to mature, but it has potential for the future of robot vacuums as home assistants.

Navigation itself was good, and the robot moved quickly through a cleaning run. When running the vacuum and mop simultaneously, it took about an hour to clean the whole floor. When separating vacuuming before mopping, it took an extra half hour. The user normally sets vacuuming before mopping for robots that struggle with fine grit and clay in her region, which can cause streaking, but that was not necessary with the Flow 2. She went back to running the vacuum and mop at the same time.

Battery Life

Battery life was not an issue in this home because the floor plan is not large. In studio tests, however, the Flow 2 had a very high battery efficiency score, with an estimated square footage per charge of over 2,300 square feet. While this particular home does not need that kind of efficiency, battery life should not be a problem with this model in larger spaces either.

Base Station and Maintenance

The base station was another positive. There were no hair clogging issues, which can be a problem with pet hair. The mop pad stayed clean and soft, and the cleaning tray was easily accessible for removal and cleaning, sitting easily back into the station. The dock is attractive and narrow enough to find a home for easily, and it has a light feature with color options that the user enjoyed.

One minor note: Narwal released a white version of the robot shortly before this review, which the user would have liked, since her dog’s hair is white and shows up more easily on dark surfaces.

The dustbin and channel went through a drying cycle after a cleaning run, but a voice would announce when it was complete several hours later. This was startling, especially when it went off in the middle of the night after an evening cleaning run. The user tried to turn this off in the app, but it was not clear how to do so without disabling all voice alerts.

App Experience and Other Considerations

The Narwal app was not the user’s favorite. While it had plenty of features and very granular controls, the interface was not intuitive, and some things were hard to find even with the search feature. The Child Lock was located in a general settings tab that seemed to contain many unrelated miscellaneous features, and other special settings like the lighting options were also hard to locate. Features often seemed to hide in tabs that were not easy to guess.

There was also a small scare during the initial mapping. The setup was user-friendly, and the robot moved quickly through the house for its first mapping, perhaps a little too quickly. When it first encountered the staircase, it darted to the edge and stopped itself quickly several times, with its back end tipping up just enough to be worrying. It never went over the edge, and it never came that close again after the initial setup. The user added a no-go zone on the map as an extra precaution.

The robot itself is also taller than many flagships seen this year. It was able to get under the furniture, and the extending mop and side brush had good reach under kitchen cabinets, but a home with lower-clearance furniture might notice the size difference. The robot also picked up a scratch on the top somewhere along the way.

Some features were not considered useful, such as a pet mimicry option that the user was fairly sure would scare her dog. Extras like that can make a robot more expensive without adding performance value, which is worth keeping in mind.

Buying Advice

At a performance level, the Narwal Flow 2 wound up being one of the user’s favorite robots. It was exceptional at all of the priorities she cared about most, with standouts in both vacuuming and mopping. The intelligent obstacle avoidance was very successful, and its pet hair performance was a huge plus. The main drawback is the app, which has too much of a learning curve.

For a family home with hard floors, area rugs, pets, and children, the Flow 2 delivers where it matters most. The mopping is genuinely impressive, the pet hair handling is reliable, and the obstacle avoidance is among the best tested in this home. If you can work around the app’s quirks, this is a capable and dependable floor cleaner.

Conclusion

The Narwal Flow 2 proved itself over three months of real-world use. Its mopping was the strongest the user had experienced, its pet hair handling was trouble-free, and its obstacle avoidance was effectively flawless. The app remains the weakest point, with a steep learning curve and poorly organized settings. For anyone who prioritizes mopping, pet hair pickup, and obstacle avoidance, the Flow 2 is a strong choice, provided the app’s learning curve is acceptable.