Originally Posted by Flinq
I've always heard to get a class 10, and that's what I plan to get very soon.
There's pros and cons to getting Class 10 cards.
From what I read, Class 10 offers the best read/write speeds so this is a positive point.
The problem is, the random access performance of higher class cards is not as good as the lower class cards.
Some users have stated that Class 10 cards in their Android devices have created lag, which is attributable to the lower random access performance.
Personally, I'm using a Class 4 32GB Transcend card and so far I've not experienced any problems. I did use a Class 10 16GB Kingston and it my Play did suffer some lag.
I think the main advantage of higher class cards is performing file transfers between sources, as the higher write/read speeds would indicate.