That's according to network-testing firm RootMetrics, which sent a small army of testers, who covered nearly 300,000 miles across the country, to compile data for its US mobile network performance review, which sums up US carrier performance in the second half of 2014.
Verizon, the nation's largest wireless carrier, again edged out AT&T on overall performance, winning out on reliability, speed, data, call quality and text messages. Sprint, meanwhile, improved its call quality and text messages, while T-Mobile saw its data and speed scores jump.
Which wireless carrier is king? One testing firm weighs in - CNET