Roomba i7+ vs Roomba i7 - Differences and Compatibility Explained
New iRobot® Roomba® i7+ Robot Vacuum Learns a Home's Floor Plan
iRobot Roomba i7+ (7550) Robot Vacuum with Automatic Dirt Disposal - Empties Itself for up to 60 days, Wi-Fi Connected, Smart Mapping, Works with Alexa, Ideal for Pet Hair, Carpets, Hard Floors, Black - Amazon.com
iRobot Roomba i7+ review: Good first impression - The Week