Roborock Saros 20

The dock holds a 2.7 L dust bag plus a 4 L clean water tank and 3.5 L dirty water tank, so it runs for weeks of normal use before refilling or emptying. It also empties the robot's onboard bin and refills its water automatically.

The robot stands just 3.1 inches tall, so it slides under many couches, beds, and cabinets. Plan floor space for the dock, which measures about 18.7 inches deep, 15 inches wide, and 19.2 inches tall.

Yes. Its obstacle clearance lets it climb door sills and floor transitions with ease, so it moves between rooms without getting stuck.

The dock washes the mop pads with 212°F hot water and dispenses detergent automatically for a deeper clean. It then air dries them at 131°F to prevent damp, musty smells between runs.

It offers no-go zones, multi-level maps, smart carpet cleaning, and smart dirt detection. Voice control works through its built-in assistant plus Amazon Alexa, Google Assistant, and Apple.