Watch the following video comparison of the Apple iPhone 5 and the Samsung Galaxy S III
The Apple iPhone 5 features a 4 inch Retina display, up to 64GB of storage, an 8 megapixel camera capable of 1080p HD video, a secondary camera for Facetime video calls, 4G LTE connectivity and is powered by an Apple A6 dual-core processor.
The Samsung Galaxy S III features a 4.8 inch HD display, up to 64GB of internal storage which can be expanded through microSD, an 8 megapixel camera capable of 1080p HD video, a secondary camera for video calls and is powered by a quad-core processor.
The U.S. variants of the Galaxy S III have 16GB of internal storage, LTE connectivity and a dual-core processor and is thus more comparable with the iPhone 5.
source - PocketNow