iRobot Roomba 980 review: You'll pay a premium for this smart but unexceptional vacuum bot - CNET
iRobot Roomba i3+ EVO (3550) Wi-Fi Connected Self Emptying Robot Vacuum Neutral i355020 - Best Buy
iRobot® Roomba® j7+ (7550) Self-Emptying Robot Vacuum – Identifies and avoids obstacles like pet waste & cords, Empties itself for 60 days, Smart Mapping, Works with Google, Ideal for Pet Hair - Walmart.com