Dreame D20 Air Plus

The dock empties the robot's 220 mL onboard bin automatically into a 4 L bag, so you can go weeks between changes. You'll mainly refill the robot's 280 mL water tank when mopping.

The robot stands 3.7 inches tall, letting it slide under many sofas, beds, and cabinets. The dock takes up floor space near an outlet, measuring about 11.5 inches wide and 10.5 inches tall.

Yes, it uses a single rubber and bristle main brush with anti-tangle design. That combination helps keep hair from wrapping around the roller in homes with shedding pets.

Yes, the app supports no-go zones so you can keep the robot out of specific spaces. It also stores multi-level maps for up to 4 floors, so each level keeps its own layout.

The mop offers 32 moisture levels, letting you dial in anything from a light damp wipe to a wetter pass. Keep in mind the stationary pad wipes rather than scrubs.