Roomba 960 vs. Roomba i7 [Key Differences Explained]
Amazon.com - iRobot Roomba i3+ EVO (3550) Self-Emptying Robot Vacuum – Now Clean by Room with Smart Mapping, Empties Itself for Up to 60 Days, Works with Alexa, Ideal for Pet Hair,
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