CNET's Dan Graziano explains the difference between T-Mobile and AT&T's rollover data programs.
Apple's big-screened phone snagged 44 percent of all phablet sales in the US last quarter, says research firm Kantar Worldpanel ComTech.
These three flagship Windows Phones are well matched when it comes to design and features -- which one comes out on top for you?
Customer Social Security numbers and call records are exposed in a bid to get smartphone "unlock" codes from AT&T.
While Verizon Wireless remains the most reliable network, according to testing firm RootMetrics, AT&T has gotten close, and offers a faster service.
Sprint, AT&T and other carriers have lined up with a wide range of pricing options for consumers. Samsung has a lot riding on getting off to a good start.
The smartphone, which is Sony's answer to popular Android-based devices, mysteriously disappeared from T-Mobile a month ago, and neither the carrier nor Sony would say why.
AT&T partners with the Chernin Group to jointly commit $500 million in investment to new online video ventures.
See how LG's latest flagship smartphone compares to the other top smartphones of 2014.
CNET takes a trip to AT&T Mobility's headquarters in Atlanta to check out the carrier's vision for the future of phone shopping.