Samsung , world best smart phone seller. It will going to launch its latest "Galaxy" smartphone in New York on 14 March, as it attempts to retake the lead from Apple in the United States. The next edition of Samsung's bestselling phone is rumoured to feature a large 4.9in screen – compared to 4.8in on its predecessor – and a camera which at 13 megapixels will outdo that and Apple's fifth iPhone. The much waited unveiling of the device, expected to be called the "Galaxy S IV", marks the first time in three years Samsung has chosen to debut a product from its flagship range in America. The S III event was held in London last year, while the S II launched in Barcelona in 2011. The Samsung event will be held at the art deco Radio City Music Hall, located in New York's Rockerfeller Center, and a favourite venue for Grammy and MTV awards.