The Mobile World Congress event is a vital one for Samsung. Along with the Galaxy S6, we'll be watching for new wearables and a mobile payments system.
The most important things to know when shopping for a cell phone.
On March 9, Apple is widely expected to let us know exactly when its much-anticipated Watch line will ship and how much all the new models will cost. But what other new products might Apple unveil?
With an interface that lets you browse headlines quickly, customize your channels and read the news offline, SmartNews is an excellent free alternative to other popular news apps.
Pricing not available
Check out the must-see moments from Samsung's Mobile World Congress Unpacked event in Barcelona, Spain.
The Galaxy S5 and earlier Galaxy smartphones had replaceable batteries and storage expansion slots. But the new GS6 says goodbye to that flexibility in favor of a sleeker design.
There may soon be new rules on how the Internet should work and be regulated. On Thursday, the Federal Communications Commission will likely pass new Net neutrality rules that would keep the Internet open and reclassify broadband as a public utility. CNET's Maggie Reardon and Sumi Das on what the rules will mean for consumers.
Technically Incorrect: With less superfluous software and more emphasis on design, some might wonder whether Samsung's new phone is a little too similar to the iPhone. Will that make marketing it easier?
Is Samsung afraid to commit to one Galaxy S6? The two new models are the same, except for the screen -- and both remove features fans loved. Meanwhile, HTC shows off the Grip fitness band and Vive VR headset.
From long-expected new products like the Samsung Galaxy S6 and HTC One M9 to surprises like the Huawei Watch and HTC Vive, here's everything you missed on the day before the Mobile World Congress officially opened.