iRobot's latest Roomba can detect pet poop (and if it fails, you'll get a new one)

Over the past two decades, iRobot has steadily evolved its Roombas from being fairly dumb robotic dirt suckers to devices that are smart enough to unload their own bins. Now with the $849 Roomba j7, the company is ready to take on its greatest challenge yet: Pet poop. It's iRobot's first vacuum that can recognize and avoid obstacles, like cables or a pile of clothes, in real-time. And for pet owners, that could finally be reason to adopt a robot vacuum. After all, you can't exactly trust your bot to clean up while you're away if they could run into surprises from your furry friends.