iRobot's smart-mapping Roomba i7 is on sale for $399

With features like smart house mapping and voice assistant control, iRobot's Roomba i7 is among the best robotic vacuums you can get. As a relatively high-end device, however, it normally commands a pretty high price ($540) -- but you can now pick one up at Amazon for just $399, for a savings of $141 (26 percent). But iRobot Roomba i7 at Amazon - $399 You can program the Roomba i7 to clean at certain times, or just yell at Amazon's Alexa or Google Assistant to start it up if there's some unsched...