Smooth is supposed to be more natural looking whilst textured are a little firmer.
I have textured.
Textured grip on to your tissue and are less likely to move over time and can also help reduce capsular contracture which is one of the reasons I had them as I’m prone to scarring.
Smooth have less chance of rippling and often cost less depending on where you go.
You will go through everything with your surgeon when you see them and be sure to ask as much as possible!
Good luck!