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Samsung Galaxy S III AT&T

Jun 4, 2012
Market status
Release date
Jun 22, 2012

US carrier availability

Discontinued: AT&T


  • Big display (4.8 inches)
  • High-resolution display (720 x 1280 pixels)
  • High pixel density screen (306 ppi)
  • Fast mobile data support (4G)
  • HDMI connector for TV-out (via microUSB)


No cons




AT&T’s Samsung Galaxy S III comes with a 4.8 inch Super AMOLED display with a resolution of 720x1280 pixels, and a 28nm dual-core 1.5GHz Qualcomm Snapdragon S4 processor. The integrated on-chip LTE means you get support for the carrier’s new 4G network. The AT&T SGS III is also among the first US phones to feature 2GB of RAM.

Do you ...?



  • Device type:
    • Smart phone
  • OS:
    • PopupAndroid (4.4.2, 4.3, 4.2, 4.1, 4.0.4) TouchWiz UX UI
  • Dimensions:
    • 5.38 x 2.78 x 0.34 inches (136.6 x 70.6 x 8.6 mm)
  • Weight:
    • 4.73 oz (134 g)
      the average is 5.2 oz (150 g)
  • Materials:
    • Main body: plastic


  • Physical size:
    • 4.8 inches
  • Resolution:
    • 720 x 1280 pixels
  • Pixel density:

    Pixel density - The pixel density of a display represents the number of pixels over an area of one inch. It’s measured in “pixels per inch”, or ppi. The higher the number, the more detailed and good-looking the display is.

    • 306 ppi
  • Technology:

    Technology - There are two main screen technologies currently used in phones and tablets: LCD and AMOLED. The former usually features a light source and liquid crystals, while the latter is based on organic light-emitting diodes. Newer LCD variations like IPS-LCD and Super-LCD allow for very accurate color reproduction and very wide viewing angles, where no significant image quality loss is observed. Current AMOLED screens differ in such a way that they can exhibit much more saturated colors (sometimes too much) and incredibly high contrast levels, which is due to black color being completely black in AMOLED displays.

    • Super AMOLED
  • Screen-to-body ratio:
    • 65.82 %
  • Colors:
    • 16 777 216
  • Touchscreen:
      • Multi-touch
  • Features:
    • Light sensor, Proximity sensor, Scratch-resistant glass (Corning Gorilla Glass)


  • Camera:
      • Popup8 megapixels
    • Flash:
      • LED
    • Aperture size:

      Aperture size - The aperture of a camera is the opening through which light travels before it reaches the camera sensor. The smaller the number is, the bigger this opening is, allowing for more light to pass.

      • F2.6
    • Camera sensor size:
      • 1/3"
    • Features:
      • Face detection, Self-timer, CMOS image sensor, Back-illuminated sensor (BSI), Autofocus, Geo tagging
    • Settings:
      • Exposure compensation, ISO control, White balance presets
    • Shooting Modes:
      • PopupBurst mode, High Dynamic Range mode (HDR), Panorama, Scenes, Effects
  • Camcorder:
      • 1920x1080 (1080p HD) (30 fps)
    • Features:
      • Digital image stabilization
  • Front-facing camera:
      • 1.9 megapixels


  • System chip:

    System chip - Most modern handsets use an advanced chip that includes many of the device’s hardware modules like the processor, Wi-Fi, Bluetooth and sometimes even the wireless radio. This field shows what particular system chip (or System-on-a-Chip) is used in the phone.

    • Qualcomm Snapdragon S4 Plus MSM8960
  • Processor:

    Processor - The processor is the main computing component of a phone and is a major factor when it comes to the overall speed of the device. Some more powerful smartphones use dual-core and quad-core processors designed to deliver greater performance.

    • Dual-core, 1500 MHz, Krait
  • Graphics processor:
      • Adreno 225
  • System memory:

    System memory - System memory, or RAM memory is the type of memory that the device uses to temporarily store data from the OS or currently-running apps. The more RAM available to the device, the better the performance will be when multiple or heavier programs are running.

    • 2048 MB RAM
  • Built-in storage:
    • 16 GB
  • Storage expansion:
    • microSD, microSDHC, microSDXC up to 64 GB


  • Talk time:
    • 8.00 hours
      the average is 15 h (884 min)
  • Stand-by time:
    • 8.3 days (199 hours)
      the average is 18 days (425 h)
  • Capacity:
    • 2100 mAh
  • Wireless charging:
    • Optional


  • Music player:
    • Filter by:
      • Album, Artist, Playlists
    • Features:
      • Album art cover, Background playback, Custom equalizer, Preset equalizer
  • Speakers:
    • Earpiece, Loudspeaker
  • YouTube player:
    • Yes

Internet browsing

  • Built-in online services support:
    • Facebook, YouTube (upload), Picasa/Google+, Twitter


  • GSM:
    • 850, 900, 1800, 1900 MHz
  • UMTS:
    • 850, 1900, 2100 MHz
  • FDD LTE:
    • 700 (band 17), 1700/2100 (band 4) MHz
  • Data:
    • LTE, HSDPA+ (4G) 21.1 Mbit/s, HSUPA 5.76 Mbit/s, UMTS, EDGE, GPRS
  • Micro SIM:
    • Yes
  • Positioning:

    Positioning - This field shows the positioning systems supported by the device. There are three main types: GPS, A-GPS and GLONASS. GPS - This is one of the most widespread global positioning technologies, developed and maintained by the U.S. government. It uses satellites in order to detect your location. Works best in clear weather. A-GPS - A-GPS stands for Assisted GPS and is the industry standard for positioning and navigation. “Assisted” means that it can use local wireless networks, in addition to satellites, for quicker and more precise localization. GLONASS - GLONASS is a global positioning system, developed by the Russian Federation. It’s very similar to GPS, but isn’t so popular in cell phones.

    • GPS, Glonass
  • Navigation:
    • Turn-by-turn navigation, Voice navigation, Points of interest (POI)
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  • Bluetooth:
      • 4.0
  • Wi-Fi:
      • 802.11 a, b, g, n, n 5GHz
    • Mobile hotspot:
      • Yes
  • USB:
      • USB 2.0
    • Connector:
      • microUSB
    • Features:
      • USB Host, USB charging
  • HDMI:
      • via microUSB
  • Other:
    • NFC, DLNA, MHL, Tethering, Computer sync, OTA sync

Other features

  • Notifications:
    • Service lights (Multiple color), Music ringtones (MP3), Polyphonic ringtones, Vibration, Flight mode, Silent mode, Speakerphone
  • Additional microphone(s):
      • Yes
  • Sensors:
      • Accelerometer, Gyroscope, Compass, Barometer
  • Hearing aid compatibility:
      • M3
    • Voice dialing, Voice commands, Voice recording, TTY/TDD


  • Officially announced:
    • 04 Jun 2012

To see the full specifications with in-depth details click here.

This device is also known as Samsung SGH-I747

Despite our efforts to provide full and correct Samsung Galaxy S III AT&T specifications, there is always a possibility of making a mistake. If you see any wrong or incomplete data, please LET US KNOW.

If you are interested in using our specs commercially, check out our Phone specs database licensing page.

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