Apple iPhone 4S Unlocked
On the outside the 4S looks exactly like its predecessor, but on the inside it's "all new." Apple has jammed a dual-core A5 CPU inside alongside a new dual-core GPU that supposedly boosts graphics performance by up to 7x. Up front is the same 3.5-inch Retina display we've all come to know and love, and around back is a glass plate.
On the back is also a new camera that sports an 8-megapixel camera with a backside illuminated CMOS sensor for better low-light performance. The lens now comes packed in a new 5-element assembly with a hybrid IR filter and sports apertures down to f/2.4.
The 4S is also the first Apple handset to come packing Siri virtual assistant tech baked in. Just tap the mic on the keyboard (just like on Android!) and start talking to enter text, check the weather, get directions or perform web searches.
As far as battery life, you're looking at eight hours of talk over 3G, and 14 hours of 2G, while web browsing over 3G cuts off at six hours. Using WiFi you'll get a respectable nine hours of web, video playback tops out at 10 hours and music at 40 hours.
