I have the SS model, but I still think the ion-x glass makes more sense for runners etc. I'm in Israel right now - bright sun, and outside it can be tricky to see the sapphire screen. For at-a-glance Watch use, the sport model makes sense as it is.
I live in Seattle the rest of the time, so sapphire works great since it's overcast so much.
I live in Seattle the rest of the time, so sapphire works great since it's overcast so much.