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Roborock Saros 20 Flow

$1,699
Roborock 3–7 days 30-day returns
$1,699 Go to Roborock ↗
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Is the Roborock Saros 20 Flow right for your home? Find out in 7 questions →

About this model

A 9.2 for hair, on a ten-point scale where Just A Dad Approved's middle mark is 6.5, is the widest lead the Roborock Saros 20 Flow holds over the field. The tester saw long hair come up without winding round the brush. Vacuuming got a 9, two points over the middle, on suction rated at 36,000 Pa, when 20,000 Pa is common among robots that come with a full wash-and-dry station.

Learn more →

Who it suits

Good for

  • Rugs and carpet: lifts the mop 0.6 in (15 mm)
  • Pets: anti-tangle brush
  • Mopping: station washes and dries the mop
  • Upkeep: all-in-one station
  • Thresholds: climbs thresholds up to 1.8 in (4.5 cm)
  • Low furniture: 3.5 in (9 cm) tall
  • Clutter on the floor: AI camera recognizes obstacles

From the facts the maker states, by the rules of our advisor.

Roborock Saros 20 Flow (black)

Before you buy, compare it with 2 recommended alternatives ?

Green is the best of these 3, also when they share the lead.

This model Roborock Saros 20 Flow Best on 5 facts Nearly as good, 71% cheaper MOVA P10 Pro Ultra Best on 3 facts Higher score, 41% cheaper Roborock Qrevo Edge 3 Pro Best on 7 facts
Most important facts
Lowest price $1,699Roborock (brand store) $499MOVA (brand store) best $999Roborock (brand store)
Score 7.8 7.5 7.9 best
Customer rating – – –
Tests Just A Dad Approved Just A Dad Approved Vacuum Wars Just A Dad Approved Vacuum Wars
Suction power higher is better 36,000 Pa best 13,000 Pa 36,000 Pa best
Runtime per charge longer is better 301 min best 150 min 256 min
Climbs thresholds up to higher is better 1.8 in (45 mm) best 0.9 in (22 mm) 1.8 in (45 mm) best
Robot height lower is better 3.5 in (9 cm) 3.8 in (9.7 cm) 3.1 in (8 cm) best
Mop lift on carpet higher is better 0.6 in (15 mm) best 0.4 in (10.5 mm) 0.6 in (15 mm) best
Dust bag lasts longer is better up to 65 days up to 75 days best up to 65 days

Compare all 26 facts →

Prices per store

On November 14, 2026 the lowest price for the Roborock Saros 20 Flow is $1,699 at Roborock (brand store), shipping to the United States included. In our ranking it is rank 2 of 94 with an all-in-one station, with a score of 7.8 out of 10.

Shipping included, sales tax added at checkout. We may earn a commission when you buy through our links. How we read and order prices

Also at Amazon, price not shown yet: Amazon.com (black).

Cheapest today
Roborock brand store
$1,699
Shipping3–7 days
Color: black No reviews at this store yet
To Roborock

Price historylast 30 dayslast 90 days

Lowest price per day Average $1,629
Lowest price per day Average $1,611

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Lowest since Oct 8$1,499
Highest since Oct 8$1,699
Price drops since Oct 80no drop seen yet

What you can expect from the Roborock Saros 20 Flow

Lowest price today · all stores$1,699
Lowest since Oct 8$1,499
Our score7.8 Rank 2 of 94
Robot height3.5 in

What testers say about the Roborock Saros 20 Flow

A 9.2 for hair, on a ten-point scale where Just A Dad Approved's middle mark is 6.5, is the widest lead the Roborock Saros 20 Flow holds over the field. The tester saw long hair come up without winding round the brush. Vacuuming got a 9, two points over the middle, on suction rated at 36,000 Pa, when 20,000 Pa is common among robots that come with a full wash-and-dry station.

The roller mop went higher again, to 9.4 where 7.5 is the tester's norm, and the review remarks on how little water it needed. That roller is washed in the station with 212 °F water, where the stations of its peers stop at 167 °F. The climbing system is rated for thresholds of 1.8 inches, more than twice the 0.8 inches others manage, and it crossed the thresholds in the tester's studio smoothly.

With stain detection switched on, the robot still did not recognize spilled ketchup and sucked it up when it should have mopped it, which left the tester with more to clean. In a kitchen that means wiping up anything sticky by hand before a run.

Roborock Saros 20 Flow specifications ?

Product on the market since September 2026 · Also sold or tested as: Roborock Saros 20 Flow Complete source

Climbs thresholds up to1.8 in
Mop lift on carpet0.6 in
Runtime per charge301 min
Suction power36,000 Pa

Consumables: a 2.7 l dust bag in the station, which lasts up to 65 days.

Dimensionsrobot and dock

Dock, from the front 17.8 in high 17.9 in deep 17.8 in 15 in wide Robot, from the side 13.9 in across 3.5 in

From the published dimensions. The robot passes under furniture with 3.6 in of clearance or more. The dock needs a spot 15 in wide and 17.9 in deep.

Suction and brushes 5 facts
Suction power
36,000 Pa
Anti-tangle brush
yes
Extending side brush
no (assumed)
Suitable for pet hair
yes
Dirt detection
yes
Mopping 7 facts
Mop type
roller mop
Mop lift on carpet
0.6 in (15 mm)
Mop extends to the edges
yes
Automatic mop detach
no
Mop refreshed while mopping
yes
Water tank in the robot
67 ml
Rinses the roller while mopping
yes
Dock 11 facts
Empties the dust bin
yes
Bagless
no
Dust bag capacity
2.7 l
Dust bag lasts
up to 65 days
Washes the mop
yes
Wash temperature
212 °F (100 °C)
Dries the mop
yes
Hot-air drying
yes
Dispenses detergent
yes
Plumbing hookup
no (assumed)
Dock size (w × d × h)
15 × 17.9 × 17.8 in (38.1 × 45.4 × 45.1 cm)
Navigation and obstacles 8 facts
Navigation
retractable LiDAR
Obstacle avoidance
AI camera
Climbs thresholds up to
1.8 in (45 mm)
Double threshold (two steps together)
3.5 in (88 mm)
Climbing system for high thresholds
yes
Camera on board
obstacle camera
Video calls through the camera
yes
Stair-edge sensors
yes
Robot 5 facts
Robot height
3.5 in (9 cm)
Robot diameter
13.9 in (35.3 cm)
Robot weight
11.5 lb (5.2 kg)
Dust bin in the robot
245 ml
Noise while cleaning
67 dB
Battery 3 facts
Battery capacity
6,400 mAh
Runtime per charge
301 min
Charging time
2.5 h
Smart features and warranty 6 facts
Matter
yes
Voice assistants
Alexa, Siri, Google Home
Built-in voice assistant
yes
Warranty
2 years
Scheduled runs
yes
Home Assistant
official integration

Where a row says “no (assumed)”, the maker's full product page for this model names the feature nowhere, so we take it as a no.

Sources: us.roborock.com · product.roborock.com · amazon.com · vacuumwars.com · Manual · de.roborock.com · home-assistant.io

Our score

Confidence: medium. One test site and fewer than 300 owners’ ratings. The highest score today is 7.9.

  • Test sites 60%7.3

    4 cleaning abilities measured, on one scale for every robot. Not tested: navigation. Its station type’s average counts instead.

    • Deep clean on carpet9.2
    • Pet hair9.6
    • Mopping8.3
    • Obstacle avoidance7.9
    • Navigation (type average, not tested)6.4

    Measured by Just A Dad Approved (read on October 5, 2026).

    Measured 8.4, counted 7.3, pulled toward its station type’s average.

  • Owners’ ratings 25%–

    Owners’ ratings, 25%: none yet at the stores that ship to the United States, so this part is left out and the others count for more.

  • Features 15%10.0

    89 of 89 points for the facts the maker states.

  • Price never countsA sale can’t lift a model. Today’s lowest price sits beside the score, checked every morning.
  • No test, no rankOnly robots a test site has tested are ranked. The rest get a provisional score.
  • Reviewers beside, not insideReviewers’ picks are shown next to the score and do not count in it.

How we work this out →

On our lists: #6 for pet hair · #5 for hardwood floors · #4 for carpet · #2 for high thresholds · #10 for low furniture

Frequently asked questions about the Roborock Saros 20 Flow

What has the Roborock Saros 20 Flow cost?

Since we began measuring on October 8, 2026, its lowest price was $1,499 (October 8, 2026, at Roborock (brand store)) and its highest $1,699 (October 26, 2026). On average it cost $1,611. In our other editions it costs today: Netherlands € 899 at Roborock (brand store).

Does the Roborock Saros 20 Flow wash and dry its own mop?

Yes, with water at 212 °F (100 °C). Drying is done with warm air.

Does the Roborock Saros 20 Flow work with Alexa, Google Home or Siri?

It works with Alexa, Siri and Google Home. It also supports Matter, so it fits into another brand’s app. Home Assistant has an official integration for this model.

How high a threshold can the Roborock Saros 20 Flow climb?

Thresholds up to 1.8 in (45 mm), the maker says. With its climbing system it also takes two steps close together, up to 3.5 in (88 mm) in all.

Is the Roborock Saros 20 Flow suitable for pet hair?

Yes, the maker says. The brush guides hair to the side instead of winding it around the roller.

How long does the Roborock Saros 20 Flow run on one charge?

301 minutes on its quietest setting. A full charge takes 2.5 hours.

The maker

Roborock

Roborock, the trading name of Beijing Roborock Technology Co., Ltd., develops and makes robot vacuums and cordless stick vacuums. It was founded in July 2014 and is headquartered in Beijing, China, with research and branch offices in Shanghai and Shenzhen. Xiaomi invested in the company in September 2014, and its first product, the Mi Home Robotic Vacuum Cleaner, went on sale in September 2016.

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