The next evolution in wireless networking holds promises of self-driving cars and movies that download in the blink of an eye. 5G is big at this year's Mobile World Congress, but don't expect it until 2020.
As the world's biggest wireless and mobile tech show comes to an end in Spain, here are a few of the most intriguing devices that made their debut.
While the ride-sharing service is entering 2015 with plans for worldwide expansion, it's also dealing with mounting resistance from regulators.
The so-called "Google tax" requires aggregators to pay a fee for posting links and excerpts of news articles. Google says it can't afford the expense.
Transportation official in Thailand says the ride-sharing service does not use licensed vehicles, while a judge in Spain says Uber drivers lack official authorization.
Several Jewish groups in Spain file a complaint with prosecutors to investigate a flood of racist tweets posted after Real Madrid lost a basketball game to Israel's Maccabi Tel Aviv team.
The e-commerce giant is offering its virtual currency in three more countries -- along with a promotion to get customers to use them.
Check out the must-see moments from Samsung's Mobile World Congress Unpacked event in Barcelona, Spain.
StoreDot's sci-fi battery tech -- which charges a phone completely in mere moments -- should pop up in a smartphone before the year's out. And electric cars could be next.
EE customers can now enjoy 4G data in France and Spain, with the USA and other European countries to follow by summer.