Kenmore 81614 vs Kenmore 21614 comparison definitely makes sense. Based on our rating, both canister vacuums have the same overall rating of 7.6. Both vacuums have multi-level cleaning system. These canister vacuums are bagged.
A noticeable difference between two models is the size, which is 79 x 41.1 x 35/27.9 x 16.2 x 13.8 (H x W x D) cm/inches for the 81614 and 71.1 x 40.6 x 35.6/28 x 16.2 x 14 (H x W x D) cm/inches for the 21614. The weight of the 81614 is 10.3/22.6 kg/lbs, and for the 21614 it is 11.8/26 kg/lbs.