In our April 16 article “3G and 4G Wireless Speed Showdown,” we reported the results of our exclusive 13-city tests of the four national wireless services: AT&T, Sprint, T-Mobile, and Verizon. Our study is the largest and best-known independent test of wireless service in the United States.
Here, in Part Two of our story, we drill deeper into the massive amounts of data that we collected over six weeks in February and March of this year. Whereas the first article reported the 13-city average speeds of the carriers, in this story we detail the carriers’ performance in each of the ten testing locations we visited in each city.
We’ve assembled a full-page map showing all 127 of our testing locations in Atlanta, Boston, Chicago, Dallas, Denver, Las Vegas, Los Angeles, New Orleans, New York, San Francisco, San Jose, Seattle, and Washington, D.C. When you zoom in on a particular city, you’ll see ten blue map markers–one for each place we tested. Click the pin, and you’ll see our full testing results for that location.
T-Mobile’s HSPA+ 21 service dominated the 3G testing, earning the highest marks for upload speed and download speed in 11 of the 13 cities we studied. The exceptions were Chicago (where AT&T captured the best download and upload speeds for 3G) and Dallas (where AT&T took the lead for 3G downloads, and Verizon won for 3G uploads).
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