Nowadays the iPhone 4 has many features that make it one of the best smartphones in the world; these characteristics are the touch screen, the two cameras, the sizes and the interface. The touch screen is a technological characteristic in the iPhone 4 because it responds only to finger touch. The touch screen allows us move and interact with the content in the screen. We can increase or decrease the zoom when you visit web pages. Because of this, we can enjoy more the games that we can have in the Iphone 4. The two cameras that the iPhone 4 has are an innovation. The frontal camera (front-facing) allows to do video calling with a resolution VGA, and the back camera (rear-facing) has a 5 megapixel camera integrated with a LED flash. The rear-facing camera is capable of recording HD video of 720p and 30fps (frames per second). Both cameras make use of the tap to focus feature. Besides; the iPhone has a very good size that is confortable for the user. The screen has a size of 3.5in, the cellphone´s dimensions are 4.54in (long) x 2.309in (wide) x 0.37in (deep). Moreover, the cellphone has an excellent interface that makes it easy to use and enjoyable. The interface has a good menu that is simple to understand and to use; it also has a lot of indications and feedbacks that ensure us that we are doing the correct things. In conclusion, the iPhone 4 is one of the best smartphones in the world because it has many features like touch screen, the two cameras, the perfect sizes and the friendly interface that make that the user prefers it.
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