In Short

The Galaxy S4 is Samusng's flagship Android smartphone for 2013.

The successor to the previous year's S3 (and the predecessor to 2014's Galaxy S5), the Galaxy S4 packs a 5-inch Full HD SuperAMOLED display and runs either an Exynos 5 or Snapdragon chip depending on region, with 2GB of RAM. The S4's also packing a 2-megapixel front-facing camera and a 13-megapixel rear shooter.

The Galaxy S4 launched with Android 4.2.2 Jelly Bean, backed up with a new TouchWiz UI. Samsung's software layer includes new graphics, refreshed animations and an armada of new features including "Smart Pause" face tracking technology. The GS4 started receiving Android 4.4.2 KitKat in the spring of 2014.