Roborock Saros 20 Flow Review: 36,000 Pa in a 9 cm Body With a Fully Automatic Dock
The Roborock Saros 20 Flow is a premium robot vacuum and mop that pairs 36,000 Pa of suction with LiDAR navigation, obstacle avoidance, multi-room maps and no-go zones, in a body under 9 cm tall that fits beneath low furniture. Its dock empties the robot, washes and dries the mop and dispenses cleaning solution automatically, and the mop lifts on carpet. It works with every major platform, Alexa, Google Home, Apple Home, SmartThings, Home Assistant and Matter, and runs up to 301 minutes per charge, recharging in about 2.5 hours. The trade-offs are 2.4 GHz-only Wi-Fi, a one year warranty and tank and bin capacities that Roborock does not publish.
- Homes with low furniture
- Mixed hard floors and rugs
- Matter and Apple Home households
- Low-maintenance cleaning
Pros
- 36,000 Pa suction with carpet cleaning and a side brush
- Slim 89.8 mm body reaches under low furniture
- LiDAR navigation with obstacle avoidance, multi-room maps and no-go zones
- Dock empties the bin, washes and dries the mop and doses detergent
- Mop lifts automatically on carpet
- Works with Alexa, Google Home, Apple Home, SmartThings, Home Assistant and Matter
- Fast 2.5 hour recharge
Cons
- 2.4 GHz Wi-Fi only
- Only a one year warranty
- Water tank and bin capacities are not published
- Large, heavy dock that needs a permanent space
- Premium price
Who is the Roborock Saros 20 Flow for?
It suits a home that wants vacuuming and mopping to run on a schedule with very little upkeep. At 89.8 mm tall the robot can reach under sofas, beds and cabinets that stop taller models, and because the mop lifts automatically on carpet it handles homes that mix hard floors with rugs. It is also an easy fit for any smart home: Alexa and Google Home work directly, and Matter brings it into Apple Home, SmartThings and Home Assistant.
What the Roborock Saros 20 Flow offers
Suction is rated at 36,000 Pa, with carpet cleaning and a side brush for edges. Navigation is LiDAR based, with obstacle detection, cliff sensors, multi-room mapping and no-go zones, and the app adds real-time tracking, scheduling and a child lock. The dock does the maintenance: it empties the robot's bin, washes the mop, dries it and dispenses cleaning solution on its own, so the mop is not left damp between runs. The robot returns to recharge by itself, runtime is rated at up to 301 minutes and a full charge takes about 2.5 hours, which keeps downtime short between cleaning sessions.
What to know before you buy
Wi-Fi is 2.4 GHz only, with no 5 GHz band. The warranty is one year, and Roborock does not publish the water tank size or the onboard and dock bin capacities, so those remain unknown. The dock measures 381 x 454 x 451 mm and weighs about 10 kg, so it needs a permanent spot, and a self-emptying, self-washing dock brings ongoing costs for bags and cleaning solution. It is a very recent, premium-priced release.
Is the Roborock Saros 20 Flow worth it?
On paper it is one of the most complete robots available: very high rated suction, a slim body, a dock that handles every routine task including detergent, and support for all the major smart home platforms. The value call rests on the premium price and the figures Roborock has not yet published. For a home with lots of hard floor, rugs and low furniture it is a strong candidate; a smaller home without those needs can spend less.
Frequently asked questions
Does the Roborock Saros 20 Flow work with Apple Home and Google Home?
Yes. It works with Alexa and Google Home, and its Matter support brings it into Apple Home, SmartThings and Home Assistant as well.
Does the Saros 20 Flow clean and empty itself?
Yes. The dock empties the robot's bin, washes the mop, dries it and dispenses cleaning solution automatically.
Will the Saros 20 Flow wet my rugs?
No. The mop lifts automatically when the robot detects carpet, so rugs are vacuumed without being mopped.
Can the Saros 20 Flow fit under low furniture?
The robot is 89.8 mm tall, so it clears furniture with a gap of about 9 cm or more.
Does the Saros 20 Flow support 5 GHz Wi-Fi?
No. It connects over 2.4 GHz Wi-Fi only.
How long does the Saros 20 Flow take to charge?
About 2.5 hours for a full charge. Runtime is rated at up to 301 minutes on a single charge.











