Roborock Saros 20
Robot vacuum and mop with washing dock
Editorial review Reviewed 5 November 2026 How we assess products
The Roborock Saros 20 has a low 7.98cm body that raises itself to cross awkward door thresholds. Dust and hair pickup are strong, brush tangling is low and spinning-pad mopping is effective. An approachable app and relatively quiet station with accessible tanks simplify care. The dock handles dust emptying, mop washing, drying and water refilling; pads can stay there for carpet cleaning. Threshold limits are precise: up to 4.5cm for one rise, or 4.5cm plus 4.3cm separated by a gap over 12cm and no more than 14cm. It cannot climb stairs. Measure the layout and furniture clearance. Basic and Set bundles differ, including detergent; dirty-water, bag and filter care remains.
Key facts
Use these figures as a starting point. If a specification is critical to your choice, confirm it on the retailer or manufacturer page before buying.
- Dock care
- Bagged emptying; mop wash, dry and refill
- Mopping
- Two rotating pads
- Carpet protection
- Mop lift or automatic pad removal
Strengths
- Raises its body to cross unusually high door thresholds
- Low body improves access beneath furniture
- Strong everyday dust and hair pickup with little brush tangling
- Effective mopping and extensive dock servicing
- Approachable app for room-by-room cleaning
- Relatively quiet dock with easy-to-reach water tanks
Limitations
- Threshold limits depend on precise heights, shape and spacing
- Cannot climb household stairs
- Premium features offer less value in a simple level layout
- Basic and Set contents differ; detergent may need buying separately
- Water, bags, filters and station parts still need care
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Useful accessories
For this model
Roborock Floor Cleaning Solution
An original low-foam refill for later use. Check any supplied starter first and follow your exact dock’s dosing instructions.
480ml Roborock concentrate for Qrevo Edge 2 Flow and Saros 20 only here. Do not apply bottle dilution instructions blindly to an automatic detergent compartment.
Typical price: about £19
Amazon
£18.99
In stock
Price checked 5 November 2026 11:48 GMT