We would like to share our experience after comparing and testing two robot vacuums – ILIFE A4s vs iRobot Roomba 690. Based on our rating, A4s has the overall rating of 6.2 out of 10 versus 8.2 for Roomba 690.
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 690. The weight of the A4s is 2.2/4.9 kg/lbs, and for the Roomba 690 it is 5.3/11.7 kg/lbs.
The iRobot Roomba 690 is better robot vacuum in this comparison. Check iRobot Roomba 690 price