Does your voice sound different in recordings?

When i record my voice, its totally bad. I recorded on my iphone 4. But when i talk, it sounds normal. So which one should i rely on?

Added (1). Also, is there a way to hear my voice?

When you say "what should i rely on" are you refering to what others hear? I know when i use my iphone it sounds pretty weird so you're not alone. I heard that if you put you hands infront of you ears ( block the front but not the back if that make sense) you will hear what your voice sounds like to everyone else. I'm not sure how it works but you should try it out.

The recording stuff in phones have bad quality.