pulled out stock sd card amd didnt have a class on it. did antutu benchmark on write and read and write was 16.7 read was 26.4.. def above specs that even class 10 is or just about the same. dont wanna sit there forever waiting for the files to transfer to phone so i was looking at class 10 class 4 sounds just fine though.
probably not needed at all but where are the combatible 64gig ones? i seen the sdxc i thimk its called and might nkt work in our phones