Did you have the original symmetry? Was it actually thinner?
I do have the original on my 7 plus. You can tell that the case is lighter than the old version and that the back is a thinner due to only being plastic. The sides seem like they are a little less rigid since there isn’t as much rubber molded to the plastic I guess.
Overall while it does seem thinner, it isn’t by much and I wish they would have left the extra rubber in there.