Amazon offers the iRobot Roomba 690 WiFi-Connected Robotic Vacuum Cleaner for $324.99 with free shipping. (Best Buy charges the same.) That's the lowest price we could find by $5, although most stores charge around $375. Built on the Roomba 650 robot platform, the Roomba 690 allows users to clean and schedule from anywhere via the companion iRobot Home app. Other features include compatibility with Amazon Alexa and Google Assistant, 3-stage cleaning system, and a dual mode virtual wall barrier.