Quad-band GSM and quad-band 3G support , Android OS, V4.0.4 ICE CREAM SANDWICH, upgradeable to 4.1.2 (Jelly Bean). 4.8" 16M-color Super AMOLED capacitive touchscreen of HD (720 x 1280 pixel) resolution; Corning Gorilla Glass 2 , 1.4 GHz quad-core Cortex-A9 CPU, Mali-400MP GPU, Exynos 4 Quad chipset, 1GB of RAM, 16GB Internal memory, ( internal storage is slightly less due to phone software), 8 MP wide-angle lens autofocus camera with LED flash, face, smile and blink detection, 1080p HD video recording at 30fps , Dual-band Wi-Fi 802.11 b, g, n, Stereo Bluetooth v4.0 ,FM radio with RDS ,Great audio quality ,Super slim at only 8.6mm, 2MP secondary video-call camera ,Full Flash for the web browser, NFC support , Document editor File manager comes preinstalled ,Extremely rich video and audio codec support, Impressively large LI-Lon 2100 mAh battery, Document viewer (Word, Excel, PowerPoint, PDF).