Samsung’s Galaxy S4 Fires First Salvo at IPhone Dominance

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Samsung Electronics Co. fired the first of three smartphone salvos this year aimed at hurting Apple Inc. in its home market, releasing a bigger and faster Galaxy S4 that reviewers said may only glance its target.

The device announced yesterday at New York’s Radio City Music Hall is lighter than predecessor S3 and has software to track movement of the eyes and waves of the hands. The Galaxy S4 will be able to take photos in two directions, monitor sleeping habits and translate commands into different languages as the South Korean company tries to lure customers in a slowing global smartphone market.