EDIT: Side by side detailed comparison of the keypads in the first post
Nothing like looking at the real stuff and/or some data points. A few comparisons of the some of the keypad models. The Centralite retail model is used here for comparison (dimension wise it’s similar to the Xfinity Centralite, features are slightly different)
The IRIS v3 is big (but it also has a LOUD siren), the Centralite is the thickest and the XHK is the thinnest (personal favorite and IMHO the sleekest/lowest profile). Feel free to share your thoughts.