Samsung didn't stop at the display. Everything inside the Galaxy S IV has been upgraded. There's now 2 GB of RAM, and a larger 2600 mAh battery (bumped from 2100 mAh). The S IV will be available with either 16, 32, or 64 GB of internal storage, and a microSD slot. To help you stay connected to damn near everything there's Wi-Fi, Bluetooth 4, and Near-Field Communication connectivity on board. There's also an IR port.Samsung was mum on what processor is at the heart of the S IV, but the popular guess is that it's a quad-core unit.