5 Things to Know About Robot Vacuums and Dark Rugs

Retractable mop features lift the pad on carpet to avoid dragging a wet mop across rugs, but they can struggle with dark-colored rugs.

Cliff sensors use infrared light to detect drop-offs, and dark surfaces absorb more of that light instead of reflecting it back.

The robot may misread a dark rug as a drop-off and refuse to drive onto it, simply skipping that rug entirely.

This is a minor quirk, not a dealbreaker, but worth knowing if your home has dark, low-pile rugs you expect the robot to handle.

Optical sensors have blind spots, so dark rugs can confuse them even when the feature works well on lighter surfaces.