Don't worry, we are talking about the United States. A recent report shows that some operators in the United States sell the 16GB version of the Samsung Galaxy S4, and nearly half of the space will be used to pre install software. Only 8.82GB of free storage space is reserved for users. These pre installed software include some message clients, fashion, health, travel, etc. As a result, users who purchase the 16GB Samsung Galaxy S4 and have a high utilization rate of mobile phone storage space can only purchase the 32GB or 64GB Samsung Galaxy S4. In addition, the memory capacity of the mobile phone can be expanded through the microSD card. The Samsung Galaxy S4 supports an external expansion capacity of up to 64GB.