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.

EngineAI's T-800 (yes, that's a Terminator designator) is perhaps the strongest robot on the planet. That's why, of course, ...

While not 100% hands-free, it's miles ahead of where robot vacuums were only a few years ago.