Verizon Announces More 4G LTE Markets to Be Lit Up on Thursday %u2013 Droid Life. I still get questions about what phones to buy, and on what networks. My answer is pretty simple. 4G LTE is the fastest mobile system out there, by far. Verizon has over 400 markets covered by 4G LTE. Sprint has 39. AT&T doesn't even approach 4G LTE speed and reliability with its enhanced 3G service, which it calls 4G. First, pick your network. Then, look at phones. You decide.