read at 16:13 UTC on 31 Oct
The Narwal Flow 2 is Narwal's flagship with two HD cameras and an AI processor that, according to the maker, recognises a near-unlimited range of objects down to keys and wallets, a self-refreshing roller mop, 31,000 Pa of suction and a station that washes in boiling-hot water, dries with hot air, doses detergent, can be plumbed in and makes the bag last about 120 days. TechRadar names it the best for obstacle avoidance; Vacuum Wars ranks it 17th of 20.
Learn more →Beside it, a model with the same kind of station that scores about the same for at least 25% less, and one that scores clearly higher for at most 20% more, where we find them on sale today.
Green is the best of these 3, also when they share the lead.
| This model Narwal Flow 2 Best on 7 facts | Nearly as good, 66% cheaper 3i P10 Ultra Best on 1 fact | Much better, not dearer Narwal Freo Z10 Ultra Best on 3 facts | |
|---|---|---|---|
| Most important facts | |||
| The lowest price today at a shop that delivers to you, delivery included. A price with an asterisk comes from a shop abroad, and its delivery cost is our own estimate. Lowest price | 999 €Amazon.de | 339 €Amazon.de best | 569 €OTTO |
| Our own score out of 10: 60% test-site results, 25% shop ratings and 15% the maker’s facts. Price does not count. Score | best | ||
| The average of the stars buyers give at the shops, with the number of reviews behind it. We only compare it from 20 reviews. Customer rating | – | – | ★ 5.0 · 6 reviews |
| The test sites that have tested this model, each linked to its own review. Tests | Vacuum Wars TechRadar Tom's Guide | Vacuum Wars | Just A Dad Approved |
| Suction in pascal, as the maker measures it. More pascal helps on carpet, but it says little about how well the robot picks grit off a hard floor. In this comparisonWhen it matters
When it matters less
Source
| 31,000 Pa best | 18,000 Pa | 18,000 Pa |
| How long the robot cleans on one charge, at its quietest setting. After that it recharges and carries on where it stopped. In this comparisonWhen it matters
When it matters less
Source
| 275 min best | 240 min | 150 min |
| The highest threshold the robot takes, as the maker states it. Measure your own: the step into a bathroom or onto a balcony is often higher. In this comparisonWhen it matters
When it matters less
Source
| 40 mm best | 20 mm | 20 mm |
| How tall the robot is. It decides whether it fits under your sofa, bed or cabinet. In this comparisonWhen it matters
When it matters less
Source
| 9.5 cm best | 10 cm | 11 cm |
| How far the robot lifts the mop when it drives onto a carpet. From about 10 mm a medium pile stays dry. In this comparisonWhen it matters
When it matters less
Source
| 12 mm best | 10.5 mm | 12 mm best |
| How long the maker says a dust bag lasts with daily use. With pets or a lot of carpet it is shorter. In this comparisonWhen it matters
When it matters less
Source
| up to 120 days best | up to 70 days | up to 120 days best |
Facts as the maker states them. A dash means the maker does not name it. Each model’s page gives the source of every fact. Noise is the maker’s own figure, so we do not judge it, and a customer rating only counts from 20 reviews.
On 31 October 2026 the lowest price for the Narwal Flow 2 is 999 € at Amazon.de, delivery to Germany included. In our ranking it is rank 19 of 66 with an all-in-one station, with a score of 7.8 out of 10.
All prices include VAT and delivery to Germany. We may earn a commission when you buy through these links. It never changes our ranking.
At the same price, a shop in your own country comes first, then a shop selling its own stock before a marketplace seller, then the shorter delivery time, then free returns and the longer return window. Commission never counts.
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The Narwal Flow 2 is Narwal's flagship with two HD cameras and an AI processor that, according to the maker, recognises a near-unlimited range of objects down to keys and wallets, a self-refreshing roller mop, 31,000 Pa of suction and a station that washes in boiling-hot water, dries with hot air, doses detergent, can be plumbed in and makes the bag last about 120 days. TechRadar names it the best for obstacle avoidance; Vacuum Wars ranks it 17th of 20.
TechRadar watched it double back mid-run to re-mop a dirty entryway, dodge obstacles at top-tier level and even name them in the app, with suction exceeding their top pick. Vacuum Wars measured 20 of 24 obstacles avoided, above-average route efficiency despite an unusual pattern, 84 percent of the sand out of carpet, excellent pet hair pickup and not a single wrap in the long-hair test. An editor then used it for three months in a family with a heavily shedding dog and was happy with mopping, hair and obstacles.
The criticism: in the lab, mopping of dried stains scored only 68 points against a 108 average, TechRadar found edges and skirting boards less clean, the robot is too tall for some cabinets and users reported flaky maps and connections in the app, which Vacuum Wars confirmed in daily use. The side brush does not extend. Anyone wanting the smartest obstacle recognition and a complete station, and willing to live with the app, gets a strong package.
Each point sums up, in our words, the review of the test it names, and its link leads to that review. We do not summarise RTINGS or Wirecutter: their lists are linked above.
The numbers that matter first, then every fact by group. As published by the maker or the shop we read it from.
Narwal · on the market since March 2026
Consumables: a 2.5 l dust bag in the station, which lasts up to 120 days.
Dimensionsrobot and dock
From the published dimensions. The dock needs a spot 45 cm wide and 36 cm deep.
31,000 Pa on this model
Lowest
450 Pa Highest
42,000 Pa Middle
6,000 Pa
Higher than 965 of the 998 models we track.
Source: eu.narwal.com · checked on 25 Sept
Suction in pascal, as the maker measures it. More pascal helps on carpet, but it says little about how well the robot picks grit off a hard floor.
529 of the 557 models we track have this.
Source: eu.narwal.com · checked on 25 Sept
A brush that guides hair to the side instead of letting it wind around the shaft. It saves the cutting work in homes with long hair or pets.
Source: eu.narwal.com · checked on 20 Sept
The side brush swings out in a corner or along a kickboard, so the dust there is swept in too. On this model: Assumed, not a stated fact: the maker's full specification does not name it, so we take it as no.
Source: derived, no source of its own · checked on 2 Oct
Whether the robot copes with pet hair: a brush that hair does not wind around and a dock that empties the bin for you. Where the maker does not say so itself, we read it from those two.
Source: eu.narwal.com · checked on 25 Sept
How the mop is built: flat pads, two spinning discs or a roller. Discs press harder on dried-on dirt, a roller rinses itself while it works.
12 mm on this model
Lowest
5 mm Highest
30 mm Middle
10.5 mm
Higher than 204 of the 295 models we track.
Source: eu.narwal.com · checked on 20 Sept
How far the robot lifts the mop when it drives onto a carpet. From about 10 mm a medium pile stays dry.
Source: eu.narwal.com · checked on 20 Sept
The pad slides out along a wall or a kickboard, so the last few centimetres are mopped as well.
Source: eu.narwal.com · checked on 20 Sept
The robot leaves the mop at the dock before it vacuums a carpet, so the carpet never gets wet. On this model: Assumed, not a stated fact: the maker's full specification does not name it, so we take it as no.
Source: eu.narwal.com · checked on 20 Sept
The robot returns to the dock during a run to rinse the mop, instead of pushing dirty water around. On this model: from the maker's product text, not from a specification table.
Source: eu.narwal.com · checked on 20 Sept
How much clean water the robot carries. It sets how long it mops before a refill, which a dock does by itself.
Source: eu.narwal.com · checked on 25 Sept
The dock empties the robot’s dust bin, usually after every run. You only empty the dock’s bag or bin.
Source: eu.narwal.com · checked on 20 Sept
The dock collects dust in a bin instead of a disposable bag. No bags to buy, but you empty it yourself. On this model: Assumed, not a stated fact: the maker's full specification does not name it, so we take it as no.
Source: us.narwal.com · checked on 21 Sept
How much the dust bag in the dock holds.
up to 120 days on this model
Lowest
up to 30 days Highest
up to 180 days Middle
up to 70 days
Higher than 487 of the 516 models we track.
Source: eu.narwal.com · checked on 20 Sept
How long the maker says a dust bag lasts with daily use. With pets or a lot of carpet it is shorter.
314 of the 397 models we track have this.
Source: eu.narwal.com · checked on 20 Sept
The dock washes the mop for you, so you do not rinse it by hand.
100 °C on this model
Lowest
45 °C Highest
100 °C Middle
75 °C
Higher than 151 of the 192 models we track.
Source: de.narwal.com · checked on 25 Sept
How hot the dock washes the mop. Above 60 °C grease comes off, which is what keeps a mop from smelling.
Source: eu.narwal.com · checked on 20 Sept
The dock dries the mop afterwards, so it does not sit there wet and start to smell.
260 of the 335 models we track have this.
Source: eu.narwal.com · checked on 20 Sept
Drying is done with warm air instead of cold. It is faster and it helps against smell.
Source: eu.narwal.com · checked on 20 Sept
The dock mixes detergent into the water itself, from its own bottle. On this model: from the maker's product text, not from a specification table.
63 of the 157 models we track have this.
Source: eu.narwal.com · checked on 20 Sept
The dock can be connected to the tap and the drain, so you never fill or empty a tank. It does need a connection nearby. On this model: from the maker's product text, not from a specification table.
Source: eu.narwal.com · checked on 21 Sept
The width, depth and height of the dock. Measure the spot you have in mind, and leave room for the lid and for the robot driving in.
Source: eu.narwal.com · checked on 20 Sept
How the robot maps your home and follows that map. Lidar measures with a laser and works in the dark, a camera looks along and recognises more. On this model: from the maker's product text, not from a specification table.
Source: eu.narwal.com · checked on 20 Sept
How the robot sees loose things on the floor, such as cables, socks or a pet accident. A camera with depth sensing sees more than a bumper that reacts on contact. On this model: from the maker's product text, not from a specification table.
40 mm on this model
Lowest
3 mm Highest
60 mm Middle
20 mm
Higher than 942 of the 977 models we track.
Source: eu.narwal.com · checked on 20 Sept
The highest threshold the robot takes, as the maker states it. Measure your own: the step into a bathroom or onto a balcony is often higher.
Source: eu.narwal.com · checked on 20 Sept
An extending leg or wheel that carries the robot over a high threshold. Without one it usually stops at about 2 cm. On this model: Assumed, not a stated fact: the maker's full specification does not name it, so we take it as no.
Source: derived, no source of its own · checked on 2 Oct
Whether the robot has a camera, and what for: to recognise obstacles, or also to show you a live picture of your home in the app.
9.5 cm on this model
Lowest
5.6 cm Highest
36.1 cm Middle
9.5 cm
Lower than 518 of the 1073 models we track.
Source: us.narwal.com · checked on 21 Sept
How tall the robot is. It decides whether it fits under your sofa, bed or cabinet.
Source: Manual · checked on 21 Sept
What the robot weighs. It counts most if you carry it up a staircase every day.
56.5 dB on this model
Lowest
20 dB Highest
80 dB Middle
65 dB
Lower than 549 of the 674 models we track.
Source: eu.narwal.com · checked on 25 Sept
The noise in decibels while cleaning, in the setting its source names: makers mostly give the standard setting, shops often the highest. 65 dB is like a vacuum at half power, 55 dB like a conversation. Emptying by the dock is louder and listed on its own.
Source: us.narwal.com · checked on 21 Sept
The capacity of the battery. It hints at the runtime, but how much the robot draws counts just as much.
275 min on this model
Lowest
40 min Highest
360 min Middle
150 min
Higher than 1053 of the 1103 models we track.
Source: amazon.com · checked on 5 Oct
How long the robot cleans on one charge, at its quietest setting. After that it recharges and carries on where it stopped.
Source: eu.narwal.com · checked on 20 Sept
Matter is the standard that lets devices from different makers work together. With it you can run the robot outside the maker’s own app. On this model: Assumed, not a stated fact: the maker's full specification does not name it, so we take it as no.
Source: eu.narwal.com · checked on 20 Sept
Which voice assistants the robot works with, such as Google Assistant or Alexa.
Source: us.narwal.com · checked on 5 Oct
You set days and times, and the robot starts by itself, also when you are not at home.
Sources: eu.narwal.com · us.narwal.com · de.narwal.com · Manual · amazon.com
Confidence: medium. One test site and fewer than 300 owners’ ratings. The highest score today is 8.8.
Test sites 60%7.4
5 cleaning abilities measured, on one scale for every robot.
Measured by Vacuum Wars (read on 29 September 2026).
Measured 7.5, counted 7.4: the fewer test sites stand behind a result, the more we pull it toward the average of its station type.
Owners’ ratings 25%–
Owners’ ratings, 25%: none yet at the shops that deliver to Germany, so this part is left out and the others count for more.
Features 15%9.6
88 of 92 points for the facts the maker states.
Positions and labels, never text. These picks are shown beside the score and do not count in it. How the score comes about is on the method page.
On our lists: #10 for high thresholds
Yes. The station empties the robot’s dust bin after every run. The 2.5 l dust bag in the station lasts up to 120 days, the maker says.
Yes. The station washes the mop itself, with water at 100 °C. It then dries the mop with warm air.
It works with Alexa, Google Assistant and Siri.
Thresholds up to 40 mm, the maker says. Measure your own thresholds: the ones to a bathroom or balcony are often higher.
The robot is 9.5 cm tall, so it fits under furniture with at least 10 cm of clearance.
Yes, the maker says. The brush guides hair to the side instead of winding it round the roller.
The maker
Narwal makes robot vacuums and wet and dry vacuums. It was founded between 2016 and 2018 by Junbin Zhang and brought out its first robot vacuum, which washes its own mop, in 2019. Its privacy policy gives a postal address for the company in Shenzhen, China.
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