This year is really a bumper year for Samsung. The sales of all mobile phones on the market are very good, and the user response of the products is also very good. Samsung officially released a Galaxy Grand mobile phone today, which uses a 5-inch 800 x 480 WVGA (with such a large screen, the resolution is a bit low, I don't know what Samsung is considering) screen , dual core 1.2GHz processor (specific model unknown), 1GB RAM, 8GB ROM (supporting up to 64GB microSD card expansion), 8 megapixel camera, 2 megapixel front lens (supporting 720p video recording), 850 (900)/1900/2100 MHz HSPA+network (downloading up to 21Mbps, loading 5.76Mbps), Bluetooth 4.0, Wi Fi 802.11 b/g/n and DLNA. Sanwei is 143.5 x 76.9 x 9.6mm and weighs 162g. The system uses Android 4.1.2, which supports the multi window mode launched by Samsung this year. Different from previous Samsung products, it is reported that the Galaxy Grand will be divided into two versions: single SIM card and dual SIM card.