Why does my iPhone 4 front camera take pixelated pictures and zooms in?

After snapping a photo with the front camera, I can tell that it zooms in a little. Also, compared to my boyfriend's iPhone 4, my picture from the front camera are more pixelated. His are so clear.
Does anyone know why? Or what I can do to make mine as good?

That "zooming" is actually just focusing. The camera is trying to find you. Why? You are trying to take a picture in the dark. How do I know? The picture that came out is pixelated. How to make the pictures look good? Shoot only under great lighting conditions. Take note. What is low light to you may as well be pitch black darkness to the camera already so learn to adjust.

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