Samsung Galaxy S3 has a 4.8-inch Super AMOLED screen with a resolution of 720P, 1GB RAM, 16/23GB storage with a slot for microSD card, 8MP camera with burst mode, zero shutter lag and backlit sensor, 2,100mAh battery, Wi-Fi, 3G and Bluetooth. The phone weighs 133 grams and has a thickness of 8.6mm.
One of the unique features in Samsung Galaxy S3 is its ability to track the eye movement of the user. Samsung calls the feature SmartStay and claims it will make using Galaxy S3 more intuitive. The phone also has S Voice, a feature similar to Siri on iPhone, that will help users in doing several tasks through voice commands.
Samsung Galaxy S3 runs on Ice Cream Sandwich, the latest version of Android operating software (Android 4.0). However, the default user interface of the OS is TouchWiz Nature UX, a custom skin prepared by Samsung.