An affordable robot vacuum is always a good option to consider, so iRobot Roomba 650 vs iRobot Roomba 880 comparison definitely makes sense. Based on our rating, Roomba 650 has the overall rating of 6.5 out of 10 versus 6.2 for Roomba 880.
A noticeable difference between two models is the size, which is 34 x 9.1/13.4 x 3.6 (D x H) cm/inches for the Roomba 650 and 35.3 x 9.1/13.9 x 3.6 (D x H) cm/inches for the Roomba 880. The weight of the Roomba 650 is 5.3/11.7 kg/lbs, and for the Roomba 880 it is 3.8/8.4 kg/lbs.