I'm sorry but I have no idea. I have the Samsung galaxy nexus and it was barely too wide for it. But im not sure what else it would fit. I only know about my cell fine and no others. So sorry :0(
I won it on listia also and just took a chance and hoped it would fit the Samsung galaxy nexus I have, but nope. It was barely too wide and buttons didn't exactly match. I've never even seen the galaxy I-9300 but wished it would've matched mine but didn't. Someone out there has the exact match fone for this case. :0) so bid bid bid... :0)