I was wanting to know about models ... I am on Amazon and searching for a case for my Sprint Samsung Galaxy s3 but now every time I kept looking at the ones I like curiosity forms. Will it fit? So I asked the guy at the online store about the model of their phone and he said it was a D710 and was unsure or undetermined about it a I9300 fitting it. I need answers. Does it matter? or do I have to go to a Sprint or wherever carries it?