Why is my iPhone saying 3G when the sim card is 4G LTE?

Ok so I just bought a Samsung galaxy s3 a while ago with 4G LTE and it broke. So I switched to my friends iPhone 4 with the same sim card but it's saying 3G. Why is it doing that?

Depends what iphone is it. The only iphone that supports 4g lte is the iphone 5

It takes more than a sim card to make a phone LTE capable. Iphone 4s aren't LTE phones.

IPhone 4 doesn't support 4G LTE. It can only receive 3G signal.

Iphone 4 does not have 4g LTE support. It can only do 3g. It is not about the sim card but whether or not the phone has the bands for LTE.

Hope this helped!

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