Roborock Qrevo Curv 2 Flow

It auto-empties into a 2.5 L bag, refills the robot's water, and cleans its own base, so most homes go weeks between hands-on upkeep.

The robot is 4.7 inches tall, so it clears taller sofas and beds but may not fit under very low furniture.

It clears obstacles up to 20 mm, so it handles standard door sills but may stop at taller thresholds.

It washes the mop with 167°F hot water rather than auto-dispensing detergent, so you add cleaning solution yourself if you want it.