Having exploded from nothing, the global smartphone industry today represents one of the fastest-growing and most important sectors in all of technology, and this week will bring one of the most important product launches in all of 2013. This Thursday, tech giant Samsung will introduce the next generation of its flagship Galaxy S line of phones: the Galaxy S IV. The launch has major implications for smartphone sales for the rest of the year. We break down what investors should expect from this important devices later this week.

Andrew Tonner owns shares of Apple. Follow Andrew and all his writing on Twitter: @AndrewTonnerThe Motley Fool recommends Apple, Google, and Universal Display and owns shares of Apple, Google, Qualcomm, and Universal Display. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.