Wall Street Journal

Huawei, Ericsson or Nokia? Apple or Samsung? US or China? Who’s Winning the 5G Races

Once a glimmer in the eyes of executives from Shenzhen to Silicon Valley, 5G now dominates a broad swath of the global supply chain—and the competition to control different parts of it is heating up. Equipment makers, smartphone sellers and chip designers are all vying for control of machines and services that use the fifth-generation wireless standard, which is becoming easier to find across parts of Asia, Europe and North America.

Is 5G Good or Bad for the Environment?

Major US wireless carriers have long touted the benefits of fifth-generation wireless networks, claiming faster speeds and reduced latency. But less attention has been paid to the environmental costs. While 5G networks can be more energy efficient at transferring data—up to 90% more efficient per unit of data transferred than their 4G predecessors, a study by STL Partners and Vertiv found—5G can also sap more energy over its life cycle because it will drive the increased use of data centers and 5G-enabled technologies and products.

Facebook Whistleblower’s Claims Test SEC’s Reach

The controversy over what Facebook has said about social and emotional hazards stemming from its products could become a test of the Securities and Exchange Commission's growing interest in policing corporate risks that hurt reputations more than profits.

To Lower Costs, Wireless Networks Such as Dish and Rakuten Head to the Cloud

These days, everything lives in the cloud. Increasingly, mobile networks are doing their work there, too. That is especially true for wireless networks being built by upstart operators such as Dish Network and Rakuten Group that are trying to get a cost edge over bigger, more established rivals. The expense of installing and maintaining customized network equipment—made by suppliers such as Nokia, Ericsson and Huawei—helps explain why the bill for an unlimited monthly cellular data plan can top $70.

5G Technology Begins to Expand Beyond Smartphones

The deployment of superfast 5G networks is supposed to usher in a new era for so much more than the smartphone—everything from enhanced virtual-reality videogames to remote heart surgery. That vision has been slow to come into focus, but a first wave of 5G-enabled gadgets is emerging.