Neato Botvac D85 Robot Vacuum
Neato's Botvac D85 is a solid robot vacuum, but I'd stick with the original Botvac series for superior overall performance.
Shark Rotator Powered Lift Away NV752
With a remarkable amount of flexibility afforded by its well-implemented features, the Shark Rotator Powered Lift-Away is as easy to use as any full-size upright we've tested. To top it off, it cleans almost as well as vacuums that cost twice as much.
Dirt Devil Lift & Go
Contrary to its appearance as a real bargain, usability issues and subpar cleaning performance mar this Dirt Devil.
Neato Botvac 85
Neato improved on its already-impressive robot vacuums with the BotVac line. Roomba 870 fans might find that Neato's BotVac 85 offers similar features and performance, but you get more accessories (like three filters rather than the 870's two) and much shorter run times.
The Shark Rocket combines adequate cleaning power with a broad array of cleaning extensions into a recommendable, affordable, lightweight vacuum. Only its cord holds it back.
The XV-21 is a great all-around robot vacuum and a viable Roomba alternative, but among Neatos, we'll stick with the brainier, similarly priced XV Signature Pro.
Dyson DC41 Animal Complete
You don't need to pay $649 to own a vacuum that cleans at this level, and if you are paying that much, you deserve a machine with a better design than this.
Electrolux Precision Brushroll Clean
This vacuum cleaner is entirely worth its $300 price tag. The search for vacuum perfection is ongoing, but the Electrolux Precision Brushroll Clean gets pretty darn close.
iRobot Roomba Discovery
This robotic vacuum cleaner uses minesweeping technology to do a slow and not entirely thorough job of cleaning floors without your assistance.
Newer models available starting at $279.99
Dyson 360 Eye
Dyson's app-enabled 360 Eye robot vacuum will debut in Japan next spring, with wider availability following later in the year.