The camera sensor which really gives very sharp and detailed images. Not only that, it even has a 2 megapixel camera sensor along with the 13 megapixel one and they work awesome. The 2 ampere charger/adapter which helps charging a lot lot faster than most normal adapter. Because normal adapters have 0.5 to 1 .0 ampere only.battery is big and very effective while on use, its come with the Corning Gorilla Glass 3 protection for display.lastly the echo and noise cancellation feature is also included