The latest models can cut cleaning time and go places upright vacs can't. Our pros tested nine models — these got our vote.More
iRobot Roomba 880 ($700, )
The Roomba lived up to its renown, clearing 90% of soil on bare floors and 73% on carpets, thanks in part to a side brush that gathers debris from corners.
GOOD TO KNOW: It did poorly in spot-clean mode, scattering debris rather than collecting it.
Neato Botvac 85 ($500, )
This dynamo maneuvered adeptly around furniture and went into tight spots (like corners) more quickly than any other model. Its dust bin was one of the easiest to clear out.
GOOD TO KNOW: It cleaned exceptionally on bare floors, but less so on carpet.