Should you buy a cheap robot vacuum? This $400 model proves it might even be a great idea

• The Eureka E20 Plus is a midrange robot vacuum and mop available for $400.
• This is a self-emptying robot vacuum with a bagless system, so you never have to buy replacement bags for it; it features 8,000Pa of suction power and an anti-tangle brush system.
• While the vacuum proved capable of sweeping up pet hair, its object avoidance was found lacking, as it would get itself stuck on objects too large to suction.

Eureka's path into making robot vacuums seems like a natural step for a traditional vacuum brand that's been around for over 100 years. It's a way for the company to modernize its lineup and capitalize on the technology it's been developing since its creation. And the puzzle pieces fall into place when you see its bagless, self-emptying robot vacuums.

Also: 10 ways to maximize your robot vacuum's cleaning efficiency and battery ...