The LG G Pro 2, Nokia X, Samsung Galaxy S5 and Sony Xperia Z2 among notable newcomers
Intel demonstrates a 64-bit version of Android running on a smartphone with its latest Atom chip,code-named Merrifield.
We've told you about the changes Sony's introducing to its Xperia smartphones and tablets. Now see the new Xperia Z2 phone for yourself in this video report.
As new 4G phones appear at Mobile World Congress, Neelie Kroes is concerned with how young people will earn the money to buy what comes next.
Carriers rejected a technology last year that supporters say would have dramatically cut the number of smartphone theft.
Intel's new Atom chips code-named Merrifield and Moorefield will be in smartphones during the second half
Qualcomm's new 64-bit, eight-core Snapdragon 615 will be in mobile devices during fourth quarter.
New phones based on Firefox OS and Ubuntu will be on display in Barcelona.
Canonical aims to have the top 50 apps available at launch.
The two companies have been trading harsh words for a week, and now T-Mobile is offering a $200 credit to trade in their Blackberrys.