As a “tablet,” the S4 delivers. Screen resolution is amazing.. It runs fast and smooth, which is not a given when you don’t own both the hardware and software. The S4 runs the latest version of Google ...

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That's what's missing from the Galaxy S4, Samsung's boldest effort yet to supplant Apple's iPhone as the pace- and trend-setter among mobile devices. Certainly the S4, scheduled to arrive in the U.S.