The Samsung Galaxy S4 comes with Android 4.2.2 Jelly Bean - the latest release of the Google platform available at the moment - and a laundry list of new TouchWiz features.
The Samsung Galaxy S has been enhancing the user experience as well as the device likeability with small features. Since the introduction of the Smart features (Smart Scroll, Smart Play and Smart Pause) as well as the auto dim options in the Samsung Galaxy SIII, the device have enhanced the Smart options to another level, with the Smart Play and Smart Pause options as well as Smart Scroll options being more embedded in different areas for an increased user experience. The Auto brightness option has been implemented too, however only in the browser at this time. Another feature on the brightness aspect is the auto light up of the display screen as soon as the proximity sensor detects someone reaching for it the screen lights up with time, missed call counter, message counter, battery charge and music track information available on display.
Also, there is a separate pane, where all the apps that have been downloaded can be viewed.
The App switcher interface is unchanged - there's a list of thumbnails of all the recent apps, apps can be swiped to dismiss and there are three buttons at the bottom, Task manager, Google Now and Kill all apps.
The initial drawbacks of smartphones, which led to the BlackBerry Z10 going high in the market and soon followed by Apple is the parallel running of two apps simultaneously on the screen. The Samsung Galaxy S4 has also provided a Multi-window option, which lets users run two apps side by side on the screen with the option to resize the windows as well, which is a new option.
Another new feature is the Air View, the ability to sense your finger hovering over the screen. This feature is enabled for information viewing (for example reading messages, viewing calendar entry text and so on), scrolling videos just by aiming at a point in the timeline, moving between tracks by pointing on the previous and next buttons, previewing folders, and the option to magnify links on websites.
The Air Gestures are also pretty similar to Air View, the difference being the use of the complete hand as compared to the finger point usage in Air View. Web pages can be scrolled in the browser by waving a hand vertically, tabs switching can be done by waving a hand horizontally, and similar motions can be used to change tracks in the music player and photos in the gallery, accept a call and move app shortcuts.
The Air view and gestures can detect finger / hand motion from a distance of 1cm / 0.5" and closer.
The familiar Smart Stay and Smart Rotate features are enabled too. The second new feature is the Smart Pause. Automatic brightness is an option, too, and works only within the browser.