S4,
The first Smartphone I bought is Galaxy S4 , and I Still remember that the display was crazy bright and sharp , I used to just unlock the device and keep on looking at display and used to change 100's of wallpapers in a week. There was Tons of features loaded in the device were in that time only there was Split screen, Pop-up view were I used to chat and watch movies simultaneously. My friends were crazy about those features at that time this features were out of the box. And Samsung was way more ahead implementing such features long back.
