It makes sense comparing Dyson Big Ball Multi Floor vs Miele Complete C2 Hardfloor because they both are able to give some premium features. Based on our rating, both canister vacuums have the same overall rating of 7.8. Difference between two canister vacuums is the cleaning system, which is cyclonic for the Big Ball Multi Floor and AirClean for the Complete C2 Hardfloor. Big Ball Multi Floor is bagless and Complete C2 Hardfloor is bagged.
A noticeable difference between two models is the size, which is 30.7 x 39.9 x 34.8/12.1 x 15.7 x 13.7 (H x W x D) cm/inches for the Big Ball Multi Floor and 58.9 x 37.3 x 32/23.2 x 14.7 x 12.6 (H x W x D) cm/inches for the Complete C2 Hardfloor. The weight of the Big Ball Multi Floor is 8/17.64 kg/lbs, and for the Complete C2 Hardfloor it is 8.6/19.1 kg/lbs.