IPhone 4 & iPhone 4S are two common types of iPhone. They are smartphone devices which are widely used by people. You might easily mistake them for each other if you are seeing them for the first time. However, these two smartphones come with some differences. These differences will guide you into knowing the right one to go for. iPhone 4 comes with a 5-megapixel camera, iPhone 4S comes with a 8 megapixel camera. Since iPhone 4S comes with 8-megapixel camera which is higher than that of iPhone 4, it shows the latter will have a faster camera and will produce a sharper image than the former.
Another difference is that, there is a slot at the right side of iPhone 4S into which micro SIM card can be inserted, which on the contrary does not exist in iPhone 4. Another thing people look for in phones is the graphics. iPhone 4S has better and quality graphics than iPhone 4.