The Narwal Flow 2 stands out as one of the most advanced robot vacuums tested, featuring a Visual Language Model with dual HD cameras and a 10-TOPS AI processor for unlimited object recognition. Vacuum Wars praised its strong obstacle avoidance, 31,000 Pa suction, and premium dock automation, though mopping performance fell short in controlled tests. YouTube reviewers highlighted its unique track mop system and effective oatmeal cleaning, while noting some early app connectivity issues. Best for tech-savvy early adopters seeking AI-driven cleaning, but those prioritizing stain removal should consider alternatives.
Full review
Advanced AI Navigation
The Narwal Flow 2 introduces a Visual Language Model (VLM) system with dual HD cameras and a 10-TOPS AI processor that theoretically enables unlimited object recognition. Vacuum Wars tested this system and found it capable of detecting items as small as 5 mm, with the robot avoiding 20 of 24 obstacles in their testing. However, Reddit users reported mapping issues, particularly in open-concept homes, where one user noted the robot would get stuck under furniture and on rugs. The AI's ability to assign risk levels to objects proved effective in real-world use, as noted by Maggie McGaugh, who observed the robot avoiding dog poop and actual pets while getting close to furniture without leaving gaps. RTINGS measured 8.3ms input lag at 120Hz, though this was in a different context. The robot's navigation efficiency was rated 4.28 out of 5 in Vacuum Wars' testing, though some users reported that the mapping software required barriers to coax the robot along effectively.
Vacuuming Performance
The Narwal Flow 2 delivers exceptional vacuuming performance with a powerful 31,000 Pa suction rating, which Vacuum Wars measured as slightly above average in airflow tests. In carpet deep-clean testing, it achieved 84% sand removal, and in pet hair pickup, it scored perfectly with 0% hair wrap in the 7-inch hair test, compared to an industry average of 26%. The anti-tangle performance was flawless, with no hair wrapping in the 7-inch test, which is a significant improvement over previous models. Bob Vila's month-long testing confirmed that the Flow 2 handled everyday messes with ease, including dog hair, muddy paw prints, and kitchen spills. However, the onboard dustbin capacity of 300 ml was noted as smaller than average by Vacuum Wars, requiring more frequent emptying than some competitors.
Mopping System Innovation
The Flow 2's standout feature is its FlowWash system, which continuously cleans the mop pad during operation using 16 different spray angles with water up to 140°F. This rolling track mop system, as opposed to spinning pads used in previous models, was praised by Maggie McGaugh for its ability to remove dirt rather than just spread it around. The system effectively handled dog hair, milk spills, and crumbs in real-world testing. However, Vacuum Wars' controlled stain tests revealed a significant weakness, with the Flow 2 scoring only 68 points in the dried-on stain test compared to the 108-point average for the category. The dirty water tank became very grimy after multiple runs, though this is common across the industry. Reddit users noted that while the mopping performance was excellent, the robot struggled with multi-floor cleaning capabilities and inefficient navigation on other levels.
Dock and Automation Features
The premium self-cleaning dock represents one of the Flow 2's strongest selling points, offering features like self-emptying debris, washing the mop roller with hot water, and drying with heated air. Bob Vila praised the dock's sleek, modern design with ambient lighting that looks good in living spaces rather than being hidden away. The top-loaded clean and dirty water tanks were noted for being easy to refill or empty, with users typically getting about two full cleaning cycles from a tank of clean water. However, early user feedback from Reddit indicated firmware bugs, including issues with the robot's ability to dock properly, with one user reporting the dock was incorrectly identified as an obstacle. The dock's Matter compatibility was also noted as a premium feature, though some users expressed concerns about the app experience, which Vacuum Wars rated as not especially strong.
Real-World Performance
In real-world testing, the Flow 2 demonstrated strong performance across multiple environments, particularly in homes with pets and high foot traffic. Bob Vila's testing in a Florida home with carpeted bedrooms, tiled floors, kitchen areas, and muddy paw prints showed consistent performance with a full vacuum-and-mop session taking about 50 minutes for 400 square feet. Maggie McGaugh's testing with dog hair, spilled milk, and crumbs confirmed the robot's ability to handle daily messes without requiring re-cleaning. However, Vacuum Wars noted that the mopping performance was lower than expected in controlled stain tests, though real-world use after a firmware update showed more promising results. Reddit users reported mixed experiences, with some praising the robot's ability to clean edges and corners, while others noted issues with mapping and connectivity, particularly in open-concept homes.
Design and Build Quality
The Flow 2 features a significant aesthetic upgrade from previous Narwal models, with a sleek, modern design that includes ambient lighting on the dock with three standby options. Bob Vila noted that the unit looked good sitting out in the room rather than being hidden in a corner, unlike the previous Freo Z10 Ultra which he found plastic and bulky. The robot's build quality was praised by Vacuum Wars for its robust rolling-track mop hardware and strong threshold crossing capability up to 38 mm. However, the onboard dustbin capacity of 300 ml was smaller than average, requiring more frequent emptying. The robot's ability to lift the mop roller on carpets and extend it for hard-to-reach areas was noted as a premium feature, though some users reported that the side brushes recontaminate cleaned areas and require manual cleaning.
Where It Falls Short
Despite its advanced features, the Flow 2 has notable weaknesses that impact overall performance. Vacuum Wars' controlled stain tests showed the mopping performance scoring only 68 points compared to the 108-point average, with dried stain and coffee-only scores being particularly low. The robot's mapping software issues were frequently reported by Reddit users, especially in open-concept homes where it would get stuck under furniture and on rugs. Early user feedback also mentioned problems with the docking mechanism, with one user reporting that the dock was incorrectly identified as an obstacle. The app experience was rated as not especially strong by Vacuum Wars, and some users noted that the robot's navigation was inefficient on multi-floor setups. Additionally, while the self-cleaning dock reduces manual maintenance, the dirty water tank still becomes very grimy after multiple runs, requiring more frequent cleaning than some competitors.
Who It's Best For
The Narwal Flow 2 is best suited for early adopters interested in advanced AI object recognition and homeowners with pets, toys, and floor clutter. It's particularly ideal for mixed-floor homes with hard floors and carpet, where its strong vacuuming performance and pet hair pickup capabilities shine. Homes with high foot traffic and messy conditions will benefit from its continuous self-cleaning mop system that removes dirt rather than spreading it around. However, it's not ideal for buyers focused primarily on stain removal, as Vacuum Wars' controlled tests showed significantly lower mopping performance in stain tests. Budget-conscious shoppers should also consider alternatives, as the Flow 2's premium features come at a higher price point of $1,049.99. Users who prefer proven software over newer AI features may find the robot's early firmware issues frustrating, particularly those related to mapping and connectivity. The robot's multi-floor navigation inefficiencies make it less suitable for larger homes with multiple levels.
Strengths
- +Visual Language Model with dual HD cameras for unlimited object recognition
- +Strong obstacle avoidance with 20 of 24 obstacles avoided
- +Powerful 31,000 Pa suction rating with excellent carpet cleaning performance
- +Premium self-cleaning dock with self-emptying debris and heated mop drying
- +Robust mopping hardware with self-refreshing roller mop and 10 mm mop lift
Watch-outs
- −Lower-than-expected mopping performance with dried stain score of 68 points
- −App reliability issues with mapping and connectivity reported by early users
- −Smaller onboard dustbin at 300 ml compared to average
How it compares
The Narwal Flow 2 leads in AI-driven navigation with its Visual Language Model and dual HD cameras, surpassing the Dreame X60 Max Ultra and Roborock Saros 20 in object recognition. However, it underperforms in mopping effectiveness compared to the Ecovacs T90 Pro Omni and Mova V50, and its app reliability issues make it less ideal than the Roborock Q10 S5+ for consistent performance.
Who this is for
At a glance: early adopters seeking AI-powered cleaning.
Why you’d buy the Narwal Flow 2
- Visual Language Model with dual HD cameras for unlimited object recognition.
- Strong obstacle avoidance with 20 of 24 obstacles avoided.
- Powerful 31,000 Pa suction rating with excellent carpet cleaning performance.
Why you’d skip it
- Lower-than-expected mopping performance with dried stain score of 68 points.
- App reliability issues with mapping and connectivity reported by early users.
- Smaller onboard dustbin at 300 ml compared to average.
Rating sources
Our 4.5 score is the average of these published ratings. More about methodology.
