Head to head · Robot vacuums

Roborock Saros 20 vs Narwal Freo Z10 Ultra

Roborock Saros 20 vs Narwal Freo Z10 Ultra: Verdict Scores 86 and 85, where each is ahead in the published figures, and which one to choose.

Manufacturers' published figures, scored by the same engine as the rankings. Nothing here is from a test we ran. · Updated September 16, 2026

Verdict

The Roborock Saros 20 has the higher Verdict Score, 86 to 85.

The Roborock Saros 20 has the edge in navigation, mopping and obstacle avoidance. The Narwal Freo Z10 Ultra has the edge in automation, value and reliability.

In the manufacturers' published figures the Roborock Saros 20 is ahead on one row: suction (36,000 Pa against 18,000 Pa). No published figure puts the Narwal Freo Z10 Ultra ahead.

The Roborock Saros 20 suits homes with a mix of hard floors and carpet. The Narwal Freo Z10 Ultra suits mixed floors with rugs and carpet, where the lift and the boost matter.

Roborock

Saros 20$1,600

86/100

Narwal

Freo Z10 Ultra≈ $650

85/100

Where the Roborock Saros 20 is ahead

Navigation94 · 82
Mopping92 · 86
Obstacle Avoidance95 · 85
Suction36,000 Pa · 18,000 Pa

Where the Narwal Freo Z10 Ultra is ahead

Automation90 · 89
Reliability66 · 64
Value69 · 34

Subscores are from our engine; the specification rows are the manufacturers' published figures, listed only where the better direction is beyond argument.

Full specification, side by side

Compare	Roborock Saros 20	Narwal Freo Z10 Ultra
	Roborock press image	Narwal press image
	86/100 $1,600Price in the manufacturer's shop	85/100 ≈ $650Price in the manufacturer's shop
	Highest Verdict Score
	Check price on Amazon.de	Check price
At a glance
Leads on	Navigation Mopping Obstacle Avoidance	Automation Reliability Value
Pros	Solid-state 3D sensing with no turret: 80 mm tall and still maps in the dark Leaves the mop on the dock for carpet and lifts the chassis over 30 mm of pile 36,000 Pa with a fully anti-tangle brush and an extending side brush	360° LiDAR with a four-layer 3D map plus two 136° cameras Triangular mops that extend to the edge and a sensor that mops until clean 12 mm mop lift with a 160% suction boost on carpet; SGS-certified zero tangling
Cons	Roborock publishes neither the dustbin nor the water tank capacity One year of warranty No plumbed drain: the dirty-water tank is still emptied by hand	18,000 Pa, the lowest of the Narwal flagships 110 mm tall with the turret Bin, tank, noise, runtime and threshold height not published
Best for	Homes with a mix of hard floors and carpet Low furniture that a LiDAR turret cannot fit under	Mixed floors with rugs and carpet, where the lift and the boost matter Buyers who want LiDAR reliability over the newest mop
Score breakdown
Verdict Score	86/100	85/100
Cleaning	93	93
Navigation	94	82
Mopping	92	86
Obstacle Avoidance	95	85
Automation	89	90
Ease of Use	95	95
Reliability	64	66
Value	34	69
Specifications In green: the better figure where the direction is beyond argument, such as more lawn or less noise. Where it depends on your home, nothing is marked.
Cleaning
Suction	36,000 Pa	18,000 Pa
Brush system	Tangle-resistant	Tangle-resistant
Side brushes	1	1
Carpet boost	Yes	Yes
Dustbin	Not published	Not published
Carpet suction boost	Not published	160%
Tangle-free certificate	Not published	SGS
Navigation
Mapping	Solid-state 3D ToF + camera	LiDAR + camera
Obstacle avoidance	Camera + depth sensor	Twin-camera AI
Saved floor plans	Not published	Not published
Threshold climb	45 mm	Not published
Map	Not published	Four-layer 3D map from 360° LiDAR
Mopping
Mop type	Twin spinning pads	Twin spinning pads
Mop lift	Detaches for carpet	12 mm
Extending mop	Yes	Yes
Water tank	Not published	Not published
Dirt sensor	Not published	Mops a patch until the water runs clean
Dock
Self-emptying	Yes	Yes
Mop washing	Yes	Yes
Mop drying	Yes	Yes
Water refill	Yes	Yes
Plumbed drain	No	No
Dust bag interval	Not published	120 days
Mop washing temperature	212 °F / 100 °C	Not published
Warm-air drying	131 °F / 55 °C	Not published
Detergent dispensing	Automatic	Not published
Dock size and weight	Not published	431 × 462 × 388 mm, 12.2 kg
Software
No-go zones	Yes	Yes
Pet waste recognition	No	No
Power
Battery	Not published	92 Wh
Runtime	Not published	Not published
Charging time	Not published	Not published
Battery voltage	Not published	14.4 V
Rated power	Not published	65 W
Connectivity
Wi-Fi	Yes	Yes
Bluetooth	Yes	No
4G / LTE	No	No
Voice control	Yes	Yes
Physical
Weight	Not published	4.5 kg
L × W × H	Not published	355 × 350 × 110 mm
Noise	Not published	Not published
Support
Warranty	12 months	Not published
Released	2025	Not published
Chassis
Carpet pile cleared	1.18 in / 30 mm	Not published
Obstacles
Recognised object types	300+	Not published
Cameras	Not published	2 × 136°, two AI chips

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