Cell phones are all the same. It's just that buying a mobile phone in Unicom requires a package, which means buying it in Unicom requires Unicom's services. Bare-metal licensed products are ordinary mobile phones. After buying it, you can use Unicom or mobile. . . In the case of ip, in fact, China Unicom can better show the excellent performance of its mobile phone, while mobile, because the relationship between 2G networks is often very limited, because it will use a lot of traffic. . .