Keyprop will fit virtually _all_ smartphones. They all have headphone jacks all about the same place. We've tested the Keyprop and it fits:
iphone3,4,5. Samsung Galaxy S II, S3 and S4. And Galaxy Note and Note2. Lumia 920, 521, HTC One, 8X We're 99% sure it will fit your phone too!
Here are some pics of various phones with Keyprop! http://tmblr.co/ZMaS8sm8IeS2