How is it different from the Saros Z70?

The Saros 20 has stronger 36,000Pa suction than the Z70 and adds AdaptiLift 3.0 threshold crossing. The Z70's arm-based pickup is the main feature the Saros 20 does not offer.

Can it climb over thresholds?

Yes, up to a combined 3.46 inches across two thresholds, under Roborock's test conditions. Single tall steps and thick rugs may still stop it.

How often do I need to empty the dustbin?

The onboard bin holds only 0.06 gallons, so the dock does most of the emptying. Plan on the dock handling dust for weeks, but check the bin after heavy pet-hair runs.

Does it work on carpets?

Yes. It lifts the mop and adapts to carpet pile up to 1.18 inches, and the chassis raises to clear up to 3cm carpet height.

Is the Saros 20 worth it?

If you want top suction, a self-washing mop dock and threshold climbing in one robot, it earns its place at the top of the line. Shoppers with mostly hard floors can get similar cleaning from simpler robots.

Does the RockDock need a plumbing connection?

The RockDock washes and dries the mop on its own, so it needs power and floor space rather than a dedicated water line. Check the setup guide for whether an optional water hookup applies to your model.

What do buyers say about the Roborock Saros Series Robot Vacuum Saros 20?

Rated 4.8 out of 5 from 19 ratings.

Where can I buy the Roborock Saros Series Robot Vacuum Saros 20?

3 stores we checked sell it, including ABiAN, Grooves-Inc.com, Walmart.

Roborock Saros Series Robot Vacuum Saros 20

Q: Where is the Roborock Saros Series Robot Vacuum Saros 20 cheapest?

At Walmart, for $1,599.99, 20% under what the other stores charge, as of our latest check.

Best price now

$1,599.99at WalmartChecked Nov 8

20% under what the other stores charge

Compared across 3 stores. Prices are checked against each store and labelled with when.

Visit Walmart

What reviewers say

4.8 / 519 ratings

With 4.8 out of 5 from 19 ratings, owners are largely positive about the Saros 20. They praise its suction, self-cleaning dock and ability to climb thresholds, while a few note the high price and the space the dock takes up.

What people mention

SuctionPraisedOwners say the 36,000Pa motor pulls up pet hair and fine dust that earlier robots left behind.
Threshold climbingPraisedThe AdaptiLift chassis gets over raised doorways and double thresholds that blocked older models.
Mop dockPraisedHot-water washing and 55°C drying keep the mop pad from smelling between runs.
Dock sizeMixedThe RockDock needs a good amount of floor and wall space, which some buyers did not plan for.
Charge timeCriticisedA 2.5-hour charge is long enough that big homes may wait for a second pass.

About the Roborock Saros Series Robot Vacuum Saros 20

Roborock Saros Series Saros 20 Robot Vacuum AdaptiLift Chassis 3.0 with 3.46 in Double-Layer Lift 36000 Pa HyperForce Digital Motor StarSight Autonomous System 2.0 FlexiArm Edge and Corner Cleaning Brand-New RockDock with Hot-Water Self-Cleaning SmartPlan 3.0 AI-Powered Cleaning Strategy Industry-First Dynamic Carpet Cleaning up to 1.18 in Pile Low-Clearance Navigation down to 3.13 in CLean Beyond Curtains for Extended Coverage Dirtect AI Stain Recognition Adaptive Pressure Mopping for Tough Stains *Based on internal testing by the manufacturer, under test condditions where the first threshold height does not exceed 1.77 inches, the gap depth between the two thresholds is greater tha4.72 inches and does notexceed 5.51 inches, and the second threshold height does notexceed 1.69 inches, the robot is capable of crossing double-layer thresholds with a combined height of up to 3.46 inches. Actual performance may varydepending on environmental conditions and actual user usageel. *Based on internal testing by the manufacturer according to the LDS sampling frequency calculation method. *Roborock was the first in the robot vacuum industry to implement 3D ToF functionality using a dual-transmitter approach, as the technology officially launched earlier in 2024. *Based on internal testing of the digital motor under specific conditions. Actual results may vary depending on product configurationand usage conditions. *Compared to the suction of Roborock Saros Z70. Actual performaance may vary depending on environmental conditions. *Based on internal testing by the manufacturer. The water at the clean water dispensers of the base can be heated up to 212 F under standard atmospheric pressure (1 atm, 101.3 kPa) at room temperature. Actual temperaturesmay vary dependingon environmental conditions such asaltitude and atmospheric pressure.