Samsung's latest has a 5-inch 1080p super AMOLED display with 441ppi. The screen is also protected by Corning's latest Gorilla Glass 3 and can be used with gloves thanks to "mitten tech." Under the hood the phone is powered by a Samsung Exynos 5 (international) or Qualcomm Snapdragon S4 Pro (North America), has 2GB RAM, 16-64GB of internal storage, a microSD slot, a removable 2600 mAh battery, 100 Mbps Cat 3 LTE, Bluetooth 4.0 and 802.11ac Wi-Fi. The device also has an IR blaster, turning it into a full remote control. The device is a thin 7.9mm.
The rear camera is 13-megapixel camera while the front camera is 2-megapixels.
Read about the new features here: The Samsung Galaxy S4 is official with 5-inch 1080p display, 13MP camera, Cat 3 LTE, eye-tracking features