The Galaxy S4 emerged as a clear evolution of the "King" its predecessor, the Galaxy S3, which was seen as a turning of the page in the form of using a smartphone. Was more than proven that the Galaxy S3 was created with a "recipe" for success. Was very well received, both for its processing capabilities and hardware, either by connection that can create with the user, understanding it in different situations of day-to-day.
The Galaxy S4 follows the same past and goes well beyond what is the Galaxy S3. There is no doubt that is aesthetically very similar, and this fact was particularly disappointed that you have in your presentation, but it is a completely redesigned and quite different smartphone.