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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.

Roborock Saros 20X × Best on 6 facts Narwal Freo Z10 Ultra × Best on 2 facts
Most important facts
Lowest price 953 €OTTO 569 €OTTO best
Score not in our ranking 7.5
Customer rating ★ 4.6 · 27 reviews ★ 5.0 · 6 reviews
Tests – Just A Dad Approved
Suction power higher is better 36,000 Pa best 18,000 Pa
Runtime per charge longer is better 180 min best 150 min
Climbs thresholds up to higher is better – 20 mm
Robot height lower is better 8 cm best 11 cm
Mop lift on carpet higher is better 15 mm best 12 mm
Dust bag lasts longer is better up to 65 days up to 120 days best
Navigation not judged – built-in LiDAR, no turret
Rank
Rank – rank 11 of 64 with an all-in-one station
Mopping
Mop type same on both spinning pads spinning pads
Automatic mop detach yes (best) 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 – 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 yes (best) no
Noise and age
Noise while cleaning not judged 63 dB 56 dB
On the market since February 2026 January 2025
Suction and brushes
Extending side brush yes no (assumed)
Carpet detection – detects carpet and boosts suction
Suitable for pet hair – yes
Filter type – HEPA
Dirt detection – yes
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 65 ml –
Steam – no (assumed)
Dock
Empties the dust bin same on both yes yes
Bagless same on both no no
Dust bag capacity same on both 2.5 l 2.5 l
Wash temperature 100 °C 75 °C
Dries the mop same on both yes yes
Dispenses detergent same on both yes yes
Clean water tank 4 l 4.5 l
Dirty water tank 3.5 l 4.1 l
Navigation and obstacles
Camera on board – obstacle camera
Stair-edge sensors – yes
Robotic arm – no (assumed)
Robot
Robot diameter 35.3 cm 35.5 cm
Robot weight 5.05 kg 4.5 kg
Dust bin in the robot 260 ml 300 ml
Battery
Battery capacity same on both 6,400 mAh 6,400 mAh
Smart features and warranty
Voice assistants Alexa, Google Assistant Alexa, Google Assistant, Siri
Warranty same on both 2 years 2 years
Home Assistant official integration –
Matter – no (assumed)

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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