Robot vacuums have steadily improved their cleaning performance and object avoidance over the years, but during our testing at CNET Labs, we discovered an odd trade-off.

CNET has been testing robot vacuums for years, but we're always refining our testing procedures. Here's the process we use to evaluate robot vacuums for cleaning, navigation performance, obstacle ...

The biggest improvements, however, are in mapping and obstacle avoidance, two crucial skills that mean most robot vacuums today can avoid getting tripped up by your shoes and will get the job done.

I’ve been testing robot vacuum cleaners since they were glorified dust-pans on wheels. Thankfully, today’s best robovacs are a world away from their clumsy ancestors. The latest generation of robot ...