What is the difference between Apple's S version and Apple's V version?

There are two different versions of Apple's S version. One is American operator sprint custom machine, with or without lock. The locked version can be received, but SMS cannot be sent; Support GSM, the patch can be 3G, it seems to have CDMA hardware, but it is locked. In addition, it is the version of SIM free introduced by official website in the United States, that is, the version without SIM card and card pin, which is also commonly known as S version. It is the most perfect version in the world, but it was introduced later.

2, Apple American version V version

Lock-free, plug-in and use, you can upgrade at will, because this time it is special, and there is a full netcom version. In addition, the V version is a customized version of Verizon, the largest mobile communication operator in the United States, and the only American version of iphone is more expensive than the Hong Kong version.