This document lists and describes the top 10 smartphones of 2013. It provides details on the operating systems, processors, storage capacities, cameras and other key specifications of phones such as the Nokia Lumia 920, Samsung Galaxy Note II, Google Nexus 4, Samsung Galaxy S3, HTC First, LG Optimus G, iPhone 5, Samsung Galaxy S4, and Sony Xperia Z. It names the HTC One as the number one smartphone of the year, highlighting its quad-core processor, Android operating system, 32GB/64GB storage, 13MP camera, and other advanced features.