We would like to share our experience after comparing and testing two robot vacuums – iRobot Roomba S9plus vs iRobot Roomba i7+. Based on our rating, Roomba S9plus has the overall rating of 8.5 out of 10 versus 8.2 for Roomba i7+.
A noticeable difference between two models is the size, which is 30.9 x 8.8/12.2 x 3.5 (D x H) cm/inches for the Roomba S9plus and 33.7 x 9.1/13.3 x 3.6 (D x H) cm/inches for the Roomba i7+. The weight of the Roomba S9plus is 3.6/8.1 kg/lbs, and for the Roomba i7+ it is 3.3/7.4 kg/lbs.
The iRobot Roomba S9plus is better robot vacuum in this comparison. Check iRobot Roomba S9plus price