Software
The Galaxy S4 ships with Android 4.2.2 and Samsung's TouchWiz Nature user experience. Eye tracking features have been extended on the S4; the new "Smart Scroll" feature can be used to scroll while looking at the screen by slightly tilting the phone, and "Smart Pause" allows the video player to pause videos if the user is not looking at the screen. "Air View" implements gestures and other functionality (such as previewing images or messages) by holding or swiping a hand or finger slightly above the screen. The "Group Play" feature allows ad hocsharing of files between Galaxy phones, along with multiplayer games and music streaming between Galaxy S4 phones. The "Adapt Sound" and "Adapt Display" functions can automatically adjust settings for the screen and sound system for optimal quality.
The camera app implements numerous new features (some of which were first seen on the Galaxy Camera), including an updated interface, "Dual Shot" (which uses the front-facing camera for apicture-in-picture effect), "Sound and Shot" (which allows the user to record a voice clip alongside a photo), "Animated Photo", and "Story Album" among others.
The ChatON app has basic features which are auto friends registration, text chat, and multimedia deliver, and put new features which are My Page, voice/video chat, and translate. The main function of ChatON is divided into Multimedia, Group Chat, Trunk, and Animation Message. ChatON can send text, picture, video, and audio as multimedia. Users use the personal profile into My Page. They can create group chat rooms just by selecting more than 2 buddies. All the contents that have been shared in each chat is saved into each trunk. Animation Message turns some simple drawing and stamping into short moving videos.
Hardware
The screen features a 5-inch
(130 mm) (sometimes stated as 4.99-inch) PenTile
RGBG Full HD Super AMOLED screen with 441 pixels
per inch; it is made of Gorilla Glass 3.
The
S4 comes with either 16GB, 32GB or 64GB of
internal storage, which can be supplemented with
up to an additional 64GB with the microSD card
slot.
Built into the 2600 mAh battery is near field
communication (NFC) connectivity, which allows
users to perform non-touch payments at shops that
employ specially equipped NFC cash registers. The
SC-04E model has aFeliCa secure element, unlike
other models which contain an NFC-A secure
element. The NFC-A secure element on the SC-04E is
provided on the SIM card. The battery can be
wirelessly charged using a Qi standardspecial
charging pad (sold separately) that utilizes
magnetic resonance to produce a magnetic field
through which power can be transferred.
The
Galaxy S4 supports the High Efficiency Video
Coding (HEVC) video format.
Samsung's official accessory for the S4, the S-View Cover, utilizes a hall effect sensor in the phone which detects when the cover is closed and displays battery status, time, and other phone statuses in an area of the screen visible through a window on the cover.
The S4 comes in two variants that differ
primarily in the internal hardware:
Quad-core
variant
This S4 version for North America, most
of Europe, parts of Asia, and other countries has
Qualcomm's Snapdragon 600 SoC containing a
quad-core 1.9 GHzKrait 300 CPU and an Adreno 320
GPU.
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