iPhone 3GS uses a normal SIM Card, iPhone 4 uses a Micro SIM Card. If you buy an iPhone 4 you have to choose an operator which sells/supports Micro SIMs. Note that depending where the iPhone is brought (Apple, Verizon, O2) it might be locked to a certain operator.
No as the handsets are different shapes and size.
Yes the Cozip Soft Polycarbonate Slim Cell Phone Case will fit the Iphone.
Yes, the iPhone does fit in the Cozip slim cell phone case. It can even take iPods as well.
Yes, it can fit. All iPhone 5 models are the exact same.
It's only designed for the IPhone 3G.
No, all iPhone cover does not fit all iPhones. All iPhones have different sizes and screen resolutions. If you want to buy iPhone I want to suggest Gadgetzkart. They provide the best quality iPhone case.
No. The devices are not the same size and and therefore won't fit in a case made for the other phone.
No, the iPhone 5s, iPhone 5c and iPhone 5 do not fit into the same cases.
No, I have both and the charger on the pen doesn't fit into the phone charger.
What is the 5g? Is this what you think the next iPhone will be called? If you are talking about the fifth generation iPod Touch, I will assure you it would be a very loose fit considering the iPod is so skinny compared to the phone.
It depends. If the iPhone 4 case is for the GSM model (AT&T) then you can put it on, but the ringer slide button will be partially obscured. If the case is for CDMA models (Verizon) then yes, it will fit because when Apple made the Verizon iPhone 4 they upgraded it to be slightly different, and that is the shape all iPhone 4S's are now. iPhone 4 are very similar in shape with iPhone 4S. If you really want, you can put the iPhone 4S phone into a iPhone 4S case. but it may seems no good in apperance, as they are not exactly same.
Yes the case will fit. All iPhone 5 models are the same size.