An affordable robot vacuum is always a good option to consider, so iRobot Roomba 880 vs ILIFE A4 comparison definitely makes sense. Based on our rating, Roomba 880 has the overall rating of 6.2 out of 10 versus 6 for A4.
A noticeable difference between two models is the size, which is 35.3 x 9.1/13.9 x 3.6 (D x H) cm/inches for the Roomba 880 and 31 x 7.6/12.2 x 12.2 x 3 (D x H) cm/inches for the A4. The weight of the Roomba 880 is 3.8/8.4 kg/lbs, and for the A4 it is 2.2/4.9 kg/lbs.