The ILIFE A4 vs iRobot Roomba 671 comparison shows that these robot vacuums have some important differences and common features. Based on our rating, A4 has the overall rating of 6 out of 10 versus 6.7 for Roomba 671.
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 A4 and 34 x 8.8/13.4 x 3.5 (D x H) cm/inches for the Roomba 671. The weight of the A4 is 2.2/4.9 kg/lbs, and for the Roomba 671 it is 2.2/5 kg/lbs.
The iRobot Roomba 671 is better robot vacuum in this comparison. Check iRobot Roomba 671 price