Roombas will soon sweep your home for weak WiFi signals - CNET
Free wifi module for Roomba 650 (or other 5xx/6xx models) : r/roomba
Amazon.com: iRobot Roomba 692 Robot Vacuum-Wi-Fi Connectivity, Personalized Cleaning Recommendations, Works with Alexa, Good for Pet Hair, Carpets, Hard Floors, Self-Charging, Charcoal Grey
Roomba will soon be able to build a map of your home's Wi-Fi coverage - The Verge