Samsung has just announce their new flagship smartphone at an event at Radio City Music Hall in New York City, the Galaxy S4. The Galaxy S4 is set to launch in April on all four major U.S. carriers and comes with a 5-inch 1080p Full HD Super AMOLED display at 441 pixels per inch “iPhone 5’s got 326 ppi”. The Galaxy S4 also houses 2 GB RAM, a 2600 mAh battery, a micro SD card slot for expanded storage and a rear 13-megapixel camera. There is also a front-facing camera that can record 720p video. The device is available with 16GB, 32GB and 64GB build in RAM. » Samsung Announces New Flagship Galaxy S4