This is the official Samsung Galaxy Core User Guide in English provided from the manufacturer. If you are looking for detailed technical specifications, please see our Specs page.
The Samsung Galaxy Core will be a low- to mid-range model with a 4.3" WVGA display, 1.2GHz dual-core processor (possibly a MediaTek or something like that), 5MP camera and Android 4.1 Jelly Bean. One of its more interesting features is that it will come in a Dual SIM variant, where the two SIM card slots will be able to remain active simultaneously. The Galaxy Core will come with the lovely TouchWiz Nature user interface and all of its useful features like Smart Stay, S Voice and Smart Alert, with the last one alerting you to missed calls and messages once you pick the phone up.