Class 2 means writing 2 mb/s. Class 4 means 4 mb/s. Class 6.......
I've read somewhere that the galaxy works a little bit faster with its external memory sd card then its intern card. So i think it will be a good idea to buy an external sdhc memory card. But i dont know either if it makes a practicall difference when you buy a class 4 or class 6..... Maybe its just helpfull when you copy your data, images to your pc, maybe only than you should see te average of it?
When I know if there will be a positive difference in speed on daily use when I use a class 6 in stead of class2 or 4, I want to buy an external memory card.....
Could someone help us out of this?
I'm not sure with the classes, but I think only if you transfer data.
But what I can tell you from my personal experience, it does faster. When I did factory reset and format the internal memory, the phone was quite responsive. Then I install 1, 3, 10 apps, still responsive. But when the apps eating the space of internal memory, it is getting slower and slower. Any 'computer' based phone may be treated same as computer. As for the SD Card, I'll go for class 4. Perhaps any recommendation from other member?