iPhone 4S is more than just fancy cell phone. With its range of features – from phone to web browser, from iPod to mobile game tool – the iPhone is more like a computer that fits in your pocket and your hand than any cell phone.Two cores in the A5 chip deliver up to two times more power and up to seven times faster graphics.2 And you’ll feel the effects. Fast. iPhone 4S is quick and responsive, which makes all the difference when you’re launching apps, browsing the web, gaming, and doing just about everything. And no matter what you’re doing, you can keep on doing it. Because the A5 chip is so power-efficient, iPhone 4S has outstanding battery life.