iPhone 4 This changes everything. Again.Phone 4 makes video calling a reality. See your friends while you talk to them and make phone calls like you?ve never seen before. iPhone 4 to iPhone 4 over Wi-Fi.It?s the sharpest, most vibrant, highest-resolution phone screen ever. With four times the pixel count of the previous iPhone, images and text are amazingly crisp.Run multiple apps at the same time and switch between them instantly. All without sacrificing performance or battery life.Now you?ll always have a great HD video camera with you. Record, edit, and share HD video right on iPhone 4.Photography on iPhone 4 takes a giant leap forward. The 5-megapixel camera includes a 5x digital zoom, a built-in LED flash, and improved low-light performance.Apple engineers designed the A4 chip to be a remarkably powerful yet power-efficient mobile processor.Organize apps into folders for fast access to your favorites. It?s the easiest way to declutter your Home screens.There are over 200,000 apps available on the App Store. And with each app you add, your iPhone does that much more.iOS 5 is the latest version of the software that powers iPhone 4 and has all the latest features and performance enhancements. iPhone 4 does not currently ship with iOS 5 preinstalled, but it is simple to download and install it to your phone. Visit out device advice page to find out the exact procedure. There you?ll also find a collection of tips, tricks and videos to help you enjoy your iPhone even more!