An affordable robot vacuum is always a good option to consider, so ILIFE A4s vs iRobot Roomba 880 comparison definitely makes sense. Based on our rating, both robot vacuums have the same overall rating of 6.2.
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 35.3 x 9.1/13.9 x 3.6 (D x H) cm/inches for the Roomba 880. The weight of the A4s is 2.2/4.9 kg/lbs, and for the Roomba 880 it is 3.8/8.4 kg/lbs.
The ILIFE A4s is better robot vacuum in this comparison. Check ILIFE A4s price