Roborock Saros 20 Review: A Flagship Robot Vacuum That Cleans Under Everything
Class-leading 36,000 Pa suction, an ultra-slim body that slips under furniture, spinning hot-water mops and standout mapping, held back by a premium price and a mop solution you buy separately.
The Roborock Saros 20 is a top-tier robot vacuum and mop for people who want a genuinely hands-off clean. Its 36,000 Pa suction, ultra-slim 3.14 in body, self-emptying dock and dual spinning mops with 212°F hot-water washing let it vacuum, mop and maintain itself with little intervention, and owners consistently praise its accurate mapping, quiet operation and reliable obstacle avoidance. The main trade-offs are the flagship price, a mop cleaning solution that is not included in the box, and occasional threshold-climbing or reliability hiccups on some units. For buyers who want the most capable all-rounder and will pay for it, it is hard to beat.
- Pet owners
- Homes with mixed floors and thresholds
- Hands-off cleaning seekers
- Smart-home and Matter users
- Premium buyers
Pros
- Class-leading 36,000 Pa suction that lifts embedded dust and pet hair
- Ultra-slim 3.14 in body slides under low sofas and beds
- Accurate LiDAR and StarSight 2.0 mapping with an intuitive, flexible app
- Very quiet, comfortable to run overnight
- Dual spinning mops with 212°F hot-water washing and auto drying
- Self-emptying dock with up to 65 days between empties
- Reliable obstacle avoidance around cables, pets and clutter
- Built-in camera for remote pet checks and cruise-mode monitoring
- Works with Alexa, Google Home, Matter, Apple HomeKit and SmartThings
Cons
- Flagship price, sits at the top of the market
- Mop cleaning solution is not included; Roborock-approved detergent costs extra
- Threshold climbing can be inconsistent, and arm-assist carries a wear warning
- Battery drains much faster in deep-clean and carpet-heavy runs
- Mopping follows a set pattern and will not auto re-mop still-dirty floors
- A few owners reported faulty units or weak suction and slow support
Who is the Roborock Saros 20 for?
The Saros 20 is Roborock's flagship, aimed at buyers who want the most capable robot vacuum and mop and are willing to pay a premium for it. Its 36,000 Pa suction and anti-tangle brush make it a natural fit for pet owners and heavy-shedding homes, while the dual spinning mops with hot-water washing suit households with a lot of tile or hardwood. An ultra-slim 3.14 in body lets it clean under low sofas and beds that trap taller robots, and the AdaptiLift chassis is built for homes with raised thresholds between rooms. Because it self-empties, self-washes and self-dries at the dock, it is best for people who want to set a schedule and forget about it. It also suits smart-home users: it works with Alexa and Google Home, and its Matter support brings Apple HomeKit and Samsung SmartThings, plus Home Assistant compatibility.
What buyers love
Owners repeatedly single out the mapping and app: it maps a floor in minutes, splits and labels rooms on its own, and makes zone or room-by-room cleaning easy. The suction earns strong praise for pulling dust and pet hair out of hard-floor gaps and off tile, and many note how quiet it is, quiet enough to run overnight without disturbing anyone. The low-profile design is a recurring highlight, with several buyers saying it is the first robot that actually cleans under their furniture. Obstacle avoidance is described as reliable, steering around cables, shoes, pets and clutter, and the extending side brush and mop reach corners and edges other robots miss. Buyers also like the self-emptying dock and easy-to-clean tray for low maintenance, and the built-in camera doubles as a handy way to check on pets remotely.
What to know before you buy
The most common complaint is that no mop cleaning solution is included in the box, even at this price, so you need to buy Roborock's approved detergent separately for the dock's auto-dispenser. Threshold performance is a mixed bag: the lifting arm clears many raised steps effortlessly, but some owners find it will not cross certain thresholds, and the app's arm-assist option carries a warning that it may wear the mechanism. Battery life is ample in normal modes but drains noticeably faster during deep-clean runs and on carpet. The mopping follows the pattern you set and does not decide on its own to re-mop a still-dirty floor, so it takes some app tuning to get the best results. A minority of buyers reported faulty units or weak suction out of the box and found customer support slow to help. The built-in Hello Rocky voice assistant was hit-or-miss for some, who fell back on Alexa or Google Home.
Is the Roborock Saros 20 worth it?
For shoppers who want a true hands-off cleaner and the top of Roborock's lineup, the Saros 20 delivers: it is well reviewed by a large number of owners, combines the highest suction on the market with excellent mapping, quiet operation, capable mopping and a genuinely low-maintenance dock. The value question comes down to price. It is a flagship purchase, and you should budget for the extra mop solution and accept a few rough edges in threshold climbing and mopping intelligence. If you have pets, mixed floors and low furniture, and you want to stop thinking about the floors entirely, it is one of the most complete robots you can buy. Bargain hunters or anyone who does not need the slim chassis and camera can save meaningfully with a mid-range model.
Frequently asked questions
Does the Roborock Saros 20 come with mop cleaning solution?
No. Many owners point out that the detergent is not included in the box, even at this premium price. Roborock recommends buying its approved cleaning solution separately, which you pour into the dock's refillable auto-dispenser.
Does the Saros 20 work with Alexa, Google Home and Apple HomeKit?
Yes. It works with Amazon Alexa and Google Home out of the box, and its Matter support extends compatibility to Apple HomeKit and Samsung SmartThings. It is also supported by Home Assistant.
Can the Saros 20 vacuum and mop at the same time?
Yes. It has dual spinning mop pads and can vacuum and mop in a single pass. For carpet it lifts or detaches the mops to keep them dry, then washes them with hot water and dries them back at the dock.
How well does the Saros 20 handle pet hair?
Very well. The 36,000 Pa suction and anti-tangle brush handle heavy shedding, and multi-pet owners report consistently clean floors. In very hairy homes it helps to enable automatic bin emptying between rooms so the robot does not get overwhelmed.
Is the Roborock Saros 20 loud?
No. Rated around 55 dB, it is one of the quieter robot vacuums, and many owners run it overnight or while working from home without it being disruptive.
Does the Saros 20 empty itself?
Yes. The dock automatically empties the robot's onboard dustbin into a sealed bag that can last up to about 65 days, and it also washes and dries the mop pads between runs.
