ATT 4G

????AT&T的第四代網(wǎng)絡(luò)不像威瑞森（Verizon）的移動(dòng)通信網(wǎng)絡(luò)那樣分布廣泛（前者覆蓋171個(gè)美國城市，后者為486個(gè)），但隨著這個(gè)美國頭號無線網(wǎng)絡(luò)運(yùn)營商擴(kuò)大其足跡，這種情況將發(fā)生改變。4G網(wǎng)速是3G的10倍，在移動(dòng)設(shè)備上實(shí)現(xiàn)了更快的網(wǎng)頁載入、文件下載和流暢的高清視頻播放。隨著4G覆蓋面的擴(kuò)大，更多用戶將采用它，網(wǎng)絡(luò)表現(xiàn)的大幅改善將讓他們以前所未有的方式來使用他們的設(shè)備。

ATT 4G

????AT&T's fourth-generation network may not be as widespread as Verizon's (171 U.S. markets versus 486), but expect that to change as the number one domestic wireless carrier expands its reach. With speeds up to 10 times that of 3G, 4G performance allows brisker loading of web pages, fast file downloads, and smooth streaming of high-definition video on a mobile device. As 4G coverage expands, more users will adopt it, and vast improvement in network performance will let them use their devices in way they hadn't before.