Release of the Galaxy S III sparked Samsung Electronics to post a 91% increase in profits in the third quarter as research firm IDC estimated the South Korean company sold more than 56 million smartphones. And yet, executives and analysts see more modest days ahead. "The biggest concern for Samsung is that its smartphone growth momentum will slow. It'll be difficult to maintain such a high profit margin from handsets as the market gets crowded and competition will intensify," said analyst Nam Dae-jong of Hana Daetoo Securities.
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