We had a chance to test and compare two robot vacuums: ILIFE A4s vs iRobot Roomba 650 and this review should help people who are looking for a good robot vacuum. Based on our rating, A4s has the overall rating of 6.2 out of 10 versus 6.5 for Roomba 650.
A noticeable difference between two models is the size, which is 31 x 7.6/12.2 x 12.2 x 3 (D x H) cm/inches for the A4s and 34 x 9.1/13.4 x 3.6 (D x H) cm/inches for the Roomba 650. The weight of the A4s is 2.2/4.9 kg/lbs, and for the Roomba 650 it is 5.3/11.7 kg/lbs.
The iRobot Roomba 650 is better robot vacuum in this comparison. Check iRobot Roomba 650 price