Narwal Flow 2 review: a robot vacuum and mop that handled ketchup, stairs and a month of use
Narwal Flow 2 review after about four weeks at home: dual-camera object recognition, mapping that worked first try, a mop that cleaned up ketchup and tea, and a self-cleaning dock.
Published November 6, 2026
Tested context
About four weeks of regular use in my home, which has open stairs on the first floor. I tested spills (ketchup and tea), mapping, object and stair detection, mopping on roughly 1,000 sq ft, the base station and battery. I have no pets and no carpets, so I cannot comment on pet hair or carpet cleaning.
Verdict
I rate it 8 out of 10 and it is one of the best robot vacuums I have tested. Mopping is its strongest point, setup and mapping were smooth, and the base station automation is genuinely convenient. I plan to keep using it long term.
Pros
- Strong mopping: it handled a ketchup and tea spill, washed the mop and went back to clean the spot again
- Mapping worked on the first try with correct room labels, a 3D map and multi-floor support
- Dual cameras with AI object recognition: it flagged a wallet on the floor and detected stairs without falling
- Base station empties dust, washes and dries the mop and refills water on its own
- 7,000 mAh battery: over 65% left after vacuuming and mopping about 1,000 sq ft
Cons
- I have no pets or carpets in my testing environment, so I did not comment on carpet performance
- I cannot isolate how much the heated water alone contributes to the mopping, as I have no benchmark for it
I have been using the Narwal Flow 2 for about four weeks, and it is one of the better robot vacuums I have tested. Here is what held up in real use.
Watch the full video review on YouTube.
Setup and mapping
Setup was smooth. The robot mapped my rooms automatically on the first try and labelled them correctly. The app shows a 3D map and supports multiple floors.
Cameras and object recognition
The Flow 2 has dual RGB cameras with AI object recognition. I left a wallet on the floor and it sent a notification to my phone, marked the spot on the map and took a photo. It also detects stairs: my first floor has open stairs and it never fell.
The ketchup and tea test
I spilled ketchup and tea on purpose. It tackled the heavier mess first, went back to the base to wash the mop, came back to the spot and cleaned it again.
Mopping
Mopping is where it stands out. In a white tissue test I saw no visible residue. I cannot isolate how much the heated water contributes, because I have no benchmark for it, but the overall mopping performance was very good. The mop feels thick and absorbent. On about 1,000 sq ft it returned to the station 3 to 4 times to wash the mop.
Suction and noise
Suction is 30,000 Pa. I did not run it at maximum constantly, but at normal intelligent suction it cleaned effectively, and the noise level was reasonable. I have no pets or carpets in my testing environment, so I will not comment on deep carpet performance, but on hard floors it performed really well.
Camera, voice and smart features
You can watch a live camera feed with two-way audio, and the built-in voice assistant responds immediately, even from across the room: "Hey Narwal, start cleaning."
The base station
The dock blends in and does the chores. It empties dust into a larger bag, washes the mop with heated water, scrapes off dirt, separates dirty water, dries the mop with hot air, refills the water and recharges the robot. During wash cycles it makes some noise for 4 to 5 minutes, but nothing unreasonable. After about four weeks I noticed no odor. Cleaning the dirty tank is straightforward: you rinse and refill it.
Battery life
The battery is 7,000 mAh and it can wash and fast charge at the same time. On about 1,000 sq ft it vacuumed and mopped and still had over 65% battery left.
Who should buy the Narwal Flow 2
I give it 8 out of 10. Mopping is the strongest part, setup and mapping were painless, and the base station automation is convenient. I plan to keep using it long term.
Buy it if you want a hands-off robot that vacuums and mops hard floors, avoids obstacles and stairs, and looks after its own mop.
Where to buy
This article contains affiliate links. If you buy through them, I may earn a commission at no extra cost to you.
Is this for you?
Who it’s for
People who want a hands-off robot vacuum and mop for hard floors, with a base station that does the dirty work and a camera-based system that avoids obstacles and stairs.
Who should skip it
I tested on hard floors only, so if your home is mostly carpet, my review does not cover how it performs there.
Watch the review
Open on YouTubeDisclosure
All images are frames from my own Tech With RR review video of the Narwal Flow 2 I tested.
This review contains an affiliate link. See our affiliate disclosure for details.