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Comparison view

Saros Z70 or Saros 20?

Saros Z70 is best suited to early adopters who want automated floor cleaning plus limited small-object pickup; Saros 20 is best suited to early adopters who want roborock's newest premium floor-care system. Compare their features and compromises below.

ProductLocal priceStatus
Choose Saros Z70 if...

Early adopters who want automated floor cleaning plus limited small-object pickup.

Main compromise: buyers seeking proven value, immediate uk stock or general-purpose tidying.
Choose Saros 20 if...

Early adopters who want Roborock's newest premium floor-care system.

Main compromise: buyers who want a lower-cost robot or a compact dock.

Side by side

The meaningful differences.

SpecificationRoborock Saros Z70Roborock Saros 20
Claimed suction22,000Pa—
NavigationStarSight Autonomous System 2.0 with 3D sensingStarSight Autonomous System 2.0
Arm capacityUp to 300g—
Battery6,400mAh—
Quoted runtimeAbout 2h 15m with arm disabled—
Dock80°C hot water mop washing, dock self-cleaning, automatic mop removal, automatic dust emptyingBrand-New RockDock with hot-water self-cleaning: 100°C hot-water mop washing, 55°C hot-air drying, auto-emptying, automatic water refilling
Warranty2 years—
MoppingDual mops with FlexiArm Riser technologyRotating mop module with FlexiArm edge and corner cleaning
Cleaning system—Vacuum and mop
Body height—7.98cm
Launch date—24 August 2026

Official product sources

Head-to-heads we have written

The comparisons people ask for most, with a verdict, the verified specifications and both prices.

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Buy the Saros 10.

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Buy the Roborock Saros 10 unless you need the climb.

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Buy the C28 and save £150.

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Buy the C15 if your lawn is under 500m² and reasonably flat — it is £500 cheaper, in stock, and has the most completely verified specification of any mower we researched.

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Start with the Qrevo S Pro.

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Buy the LUBA 3 AWD for difficult ground.

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