is there a better way of creating this button

[Pristo Miky]

I've experimented a bit with creating a button. I'll eventually be doing this on a real object. Because of the shape and detail I wanted, I dont think I can use the loop tools addon, but feel free to correct me if i'm wrong. I initially created the top surface of the button and worked outwards from there. the rendered result looks fine (some fine tuning with holding loops will come later).

I was wondering if it's possible to achieve the same as in the image, but with less geometry. I'm aiming to use quads as much as possible an no ngons and ideally no tris, there are 4 tris in this object which is ok by me.

Any ideas / suggestions?