Yes. it's good comparing to the model it's self.
The camera is really good on the iPhone 4s... I know from experience... 8 megapixel camera.
iPhone 4: 5MP 720p HD Camera iPhone 3GS & Below: 3MP Camera
The iphone 5 has an improved 8 megapixel camera.
The new iPhone 4 does.
Yes, you can put an iPhone camera in an iPhone 3GS provided you have the required skills.
Yes, all iPhone's have a rear camera, however, only the iPhone 4 and 4S have a front facing camera as well.
iphone 1 iphone 2 iphone 4 iphone 5 while iphone 3 have only one camera oly in the backside
not good enough :P.
Yes
Depending on what iOS you have it varies, if both iPhone 4 and 3GS had iOS5 the only difference would be not having the switch camera button in the Camera App and FaceTime.
The iPhone 4 camera has a 5-megapixel camera. The camera also has HD (720p) video recording for up to 30 frames per second with audio.
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