Save $300 on iRobot's flagship Roomba s9+ at $799, more robo vacs from $180
iRobot Roomba i3+: A budget-friendly, self-cleaning robot vacuum - Gearbrain
iRobot® Roomba® 676 Robot Vacuum-Wi-Fi Connectivity, Personalized Cleaning Recommendations, Works with Google, Good for Pet Hair, Carpets, Hard Floors, Self-Charging - Walmart.com