Why the Galaxy has 25GB instead of 32GB I just purchased a Samsung Galaxy S3 32GB, when I check the storage I have only 25.5GB. Where is the other 6.5GB?
Usually this space is taken up by various things that come with the device, like resources for the OS, built-in apps, and just disk information. Even formatting an 8 GB SD card will only get you 7.49 GB. That same logic would leave you with 30 GB, the rest is most likely the OS, and various system resources.