US carriers will start shipping the GS4 this week. AT&T will probably be the first one as they aim to start shipping on Tuesday (April 23). Most other carriers (including Sprint, T-Mobile and US Cellular) will ship a week layer (April 30). it will be very interesting to see the market's reaction to Samsung's new flagship phone.

The GS4 features a 4.99" Full-HD (1920x1280, 441 PPI) Super AMOLED display, an Octacore 1.6Ghz Exynos CPU (some models use a Quadcore 1.9Ghaz Qualcomm CPU), 2GB of memory, 13 mp camera and a 2,600mAh battery - all this while being a smaller and lighter than the GS3. The GS4 includes a lot of new software features and special UI controls, include the Adapt Display which allows extensive display calibration adjustments.

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