Samsung is simply dead; it's not even foolish. It is theoretically impossible to run on 4GB of RAM, and even the built-in optimization is useless. Two out of every four is consumed by Android, another 700 applications that should make using a smartphone comfortable, 500 are reserved by the system, and the remaining space can be used to run Facebook or a game like "3 in a Row," but not simultaneously, since doing so will cause the device to crash. Version 4/128 is not something I advise purchasing because I have no idea what to do with this ballast.
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