There are different versions of iPhone, and each version supports different carrier networks.

IPhone SE is a new 4-inch iPhone smartphone launched by Apple, which is based on an upgraded version of iPhone 5S. Apple named this product: iPhone SE (Special Edition), which is the first iPhone device without numbers.

iPhone

Two models of SE, A 1724 and A 1723, passed 3C certification and obtained network access licenses. Among them, the former supports dual 4G networks, and the latter has the function of full netcom, covering the 2G/3G/4G networks of the three major operators: China Mobile, China Unicom and China Telecom. In addition, the iPhone

SE also has a model A 1662, which will support the mobile 2G and 2G/3G/4G networks of China Unicom and China Telecom.

Extended data

China Mobile and 4GTD-LTE scale trial network deployment project adopts "6+ 1" scheme, and will invest 654.38+0.5 billion RMB to build TD-LTE demonstration network, covering Shanghai, Hangzhou, Nanjing, Guangzhou, Shenzhen, Fuzhou, Xiamen and other cities, with about 200 base stations deployed in each city; And build a TD-LTE demonstration network in Beijing.

2065 438+02. 8. 7 With the deepening of the expansion of domestic TD-LTE trial network, as one of the first batch of six TD-LTE pilot cities determined by the Ministry of Industry and Information Technology, Guangzhou Mobile plans to further expand the construction scale of TD-LTE trial network on the basis of the original planned construction scale.

The newly reported TD-LTE network in Guangzhou has increased from the original planned 3 100 stations to about 3,700 stations, accounting for 18.5% of the total construction scale of 20,000 stations in domestic 13 cities in 20 12. The network construction is planned to be completed by the end of 20 12.

Since China Mobile 20 13, China Mobile has started the construction of 200,000 base stations and the procurement of 6,543.8+0,000 terminals, and experienced nearly 40,000 users.

20 13 10, China mobile was approved to carry out TD-LTE scale trials in 326 cities across the country. China Mobile said that it has started the commercial deployment of TD-LTE nationwide, will build the world's largest 4G network, and will strive to promote the integrated development of 4G.

According to the plan of China Mobile, the company can provide 4G services to users in Beijing, Hangzhou, Guangzhou, Shenzhen, Qingdao, Nanchang, Nanjing, Wenzhou, Xiamen, Shanghai, Tianjin, Shenyang and Chengdu before the end of October.

20 18 in may, China mobile announced its operating data for April. It shows that China Mobile has maintained a good growth momentum in cable broadband, but for the first time, there was a negative growth of 4G users, with a monthly loss of 2.427 million users.

References:

Baidu encyclopedia-mobile 4G