According to our measurements, T-Mobile is delivering on Legere's boasts. In the fourth quarter, T-Mobile had an LTE time-coverage metric of 81%, which means its 4G customers were able to see an LTE signal 81% of the time in our tests (for more information on time coverage see our methodology page). T-Mobile's recent improvements now put it a little more than a percentage point away from matching AT&T in LTE network availability and helped it close the bigger gap between itself and Verizon. Sprint brought up the rear with a time coverage of 70%.
T-Mobile's 3G speeds are way faster than its competition and it just edged out Verizon as the fastest 4G network.
In past reports, T-Mobile has bested all operators in speed, but in the fourth quarter T-Mobile and Verizon were almost evenly matched. T-Mobile's 12.3 Mbps LTE average just barely edged out Verizon’s average of 12 Mbps, making it a statistical tie (AT&T and Sprint didn’t even come close). We delved deeper into our data to compare LTE speeds in the eleven biggest metro areas and found Verizon and T-Mobile battling out just as intensely on the local level. T-Mobile won the contest in four markets and Verizon won it in three, while three cities were statistical draws between the two (the 11th market, Houston, was a statistical tie between all four nationwide operators).
Notably, OpenSignal reports that United States is falling behind globally in LTE speed. Many countries now offer a consistent 20 Mbps or faster connections; however, in the US the average is 9.9 Mbps. That's the same as Argentina, a country that just got LTE a year ago.
Take a look at the charts below or hit the link for more details...