This flagship Android phone is very similar to AT&T's first Galaxy S II, but adds 4G LTE, and steps up the screen size and processor speed a notch. Other features are similar, including a dual ...

CPU Octa-core (2x2.0 GHz Cortex-A75 & 6x1.8 GHz Cortex-A55) - Version A Octa-core (4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55) - Version B ...