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Comparing 2 robot vacuums

Your shortlist side by side: today’s price, our score and every fact the maker states.

Green is the best of these 2, also when they share the lead.

Narwal Flow 2 × Best on 7 facts Eureka J15 Pro Ultra × Best on 1 fact
Most important facts
Lowest price € 999bol.com € 379bol.com best
Score 7.5 best 7.2
Customer rating – ★ 5.0 · 1 review
Tests Vacuum Wars TechRadar Tom's Guide Vacuum Wars
Suction power higher is better 31,000 Pa best 16,200 Pa
Runtime per charge longer is better 275 min best 240 min
Climbs thresholds up to higher is better 40 mm best 20 mm
Robot height lower is better 9.5 cm best 11 cm
Mop lift on carpet higher is better same on both 12 mm 12 mm
Dust bag lasts longer is better up to 120 days best up to 75 days
Navigation same on both LiDAR turret LiDAR turret
Rank
Rank rank 16 of 80 with an all-in-one station rank 53 of 80 with an all-in-one station
Mopping
Mop type roller mop spinning pads
Automatic mop detach same on both no (assumed) no (assumed)
Washes the mop same on both yes yes
Hot-air drying same on both yes yes
Station
Station same on both all-in-one station all-in-one station
Plumbing hookup yes (best) no (assumed)
Brush and obstacles
Anti-tangle brush same on both yes yes
Obstacle avoidance same on both AI camera AI camera
Climbing system for high thresholds same on both no (assumed) no (assumed)
Noise and age
Noise while cleaning not judged 56.5 dB 62 dB
On the market since March 2026 September 2024
Suction and brushes
Extending side brush same on both no (assumed) no (assumed)
Suitable for pet hair same on both yes yes
Anti-tangle system – blade that cuts hair
Mopping
Mop extends to the edges same on both yes yes
Mop refreshed while mopping same on both yes yes
Water tank in the robot 130 ml –
Heats mop water in the robot yes –
Mop water temperature in the robot 45 °C –
Rinses the roller while mopping yes –
Steam – no (assumed)
Dock
Empties the dust bin same on both yes yes
Bagless same on both no (assumed) no
Dust bag capacity 2.5 l 3 l
Wash temperature 100 °C 75 °C
Dries the mop same on both yes yes
Drying temperature 60 °C –
Dispenses detergent yes no (assumed)
Clean water tank – 4 l
Dirty water tank – 3.4 l
Dock cleans its own wash tray – yes
Navigation and obstacles
Camera on board same on both obstacle camera obstacle camera
Multi-floor maps – 4
Robot
Robot diameter 35.1 cm 35.5 cm
Robot weight 5 kg –
Dust bin in the robot – 400 ml
Battery
Battery capacity 7,000 mAh 5,200 mAh
Smart features and warranty
Matter same on both no (assumed) no (assumed)
Voice assistants Alexa, Google Assistant, Siri Alexa, Google Assistant
Scheduled runs yes –

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.

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