Hoover SH40070 vs Kenmore 21614 comparison definitely makes sense. Based on our rating, SH40070 has the overall rating of 6.8 out of 10 versus 7.6 for 21614. Difference between two canister vacuums is the cleaning system, which is cyclonic for the SH40070 and multi-level for the 21614. SH40070 is bagless and 21614 is bagged.
A noticeable difference between two models is the size, which is 27.9 x 38.1 x 55.4/12.2 x 15.5 x 21.8 (H x W x D) cm/inches for the SH40070 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 SH40070 is 6/13.2 kg/lbs, and for the 21614 it is 11.8/26 kg/lbs.