Originally Posted by jk6090
I have a Xperia St15i with a 16Gb Class 4 card.
I searched the site for suggestions regarding a possible change of card in order to speed up apk's running, but what I found refers to other phones and other matters.
I wonder if switching to a Class 10 would make any difference. Anyway, I'm aware that internal memory size for St15i is obscene, and Link2sd could make things even worst.
Thanks for any hint.
Generally speaking, a higher class means higher Read/Write speeds.
A 10 Class microSD is HIGHLY recommended for Link2SD.
But it's also a good thing for apps that uses the SD for storage, like the camera, music player, apps moved to SD...ect.
So yes, it will speed up your phone, but before buying you should test the SD card performance with apps like A1 SD Bench
to test if it's the real deal or a fake one.