Its latest S Series Model of Samsung which comes with some new thing in mobile device. I think its first time a Smartphone Processor have Quad/Octa Core Processor. Samsung Galaxy S4 have better value of Resolution, Pixel Density, Battery, Camera than Galaxy S3.
When Samsung Galaxy S3 arrive into market then there is much more comparison between Apple iPhone 5 with Samsung Galaxy S3. At that time Samsung Galaxy S3 get more popular in market because of, it comes with some features which doesn’t available in iPhone 5. Also S3 providing better features and specifications than other in very low price. Suddenly Galaxy S4 get into market because of some image leaked over internet. As per news Apple going to launch its next iPhone (iPhone 6) and mini iPhone in this summer (June 2013). Let see how it can compete with All Smartphone giant from different brand available in market.