Dreame L20 Ultra

The dock holds a 3.2 L dust bag and empties the robot's 300 mL onboard bin automatically after each run. For most homes that means only refreshing the bag every month or two.

The robot stands just 4.1 inches tall, so it slides under many couches, beds, and cabinets. Its 13.8-inch width also helps it navigate tighter gaps between furniture legs.

Yes, it clears obstacles up to 20 mm high, so it rolls over most door sills and low transitions between carpet and hard floors without getting stuck.

It supports Amazon Alexa, Google Assistant, and Apple voice control. You can also set no-go zones and store multi-level maps to keep it out of specific rooms or areas.

The dock washes the mop pads with automatic detergent dispensing after mopping, then air-dries them so they stay fresh between cleanings.