Samsung Electronics Co. said it has shipped more than 10 million units of the Galaxy S4 since the phone hit markets in late April, outpacing sales of previous Galaxy models.

Mobile devices continue to change the landscape for computer makers and their suppliers. The latest response comes from Advanced Micro Devices, in three new lines of chips and a nuance in nomenclature.

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Social media's reaction to the Oklahoma disaster quickly turned to crowd-funding relief efforts. Fundly CEO Dave Boyce joins digits with a look at what philanthropy looks like now.

As more Americans buy Internet-connected TVs, interactive ads will soon be popping up on screens. Opera Mediaworks CEO Mahi de Silva joins digits with a look at the next wave of mobile and interactive marketing.

Facebook said Wednesday that it joined the Global Network Initiative, an advocacy group that promotes online privacy and freedom. The organization already features several other technology giants such as Microsoft, Yahoo and Google, as well as rights groups such as Human Rights Watch and Human Rights in China.

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High-profile disasters bring heartache for victims but fraudsters smell opportunities. Credit.com chairman Adam Levin offers tips on keeping identities safe in the wake of disasters like those in Oklahoma.

Microsoft and Sony have taken diverging approaches in their expanding war for the hearts and minds of gamers. Yes, their next-generation consoles both offer high-fidelity games, and they can both play music and movies. But the rest is rather different.

University of Cambridge scientists have created a program that digitizes your face, gives it emotion and reads off your texts. WSJ’s Linda Freund introduces us to Zoe.

If you’ve heard a low voice exclaim, “Delicious!” or “Tasty!” while you’re on mass transit or at a coffee shop, you know the popular smartphone game Candy Crush is being played. WSJ’s Monika Vosough explains why it’s Facebook’s number one game today.

In China, the future of foreign language education may be online. About 1,000 primary school children in China’s coastal area of Fujian are paying to play online games and learn English. WSJ’s Eva Tam takes us to 3-D English Adventureland.

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Xbox One (C) with the Kinect motions sensor (L) and the controller is pictured during a press event unveiling Microsoft's new Xbox.

One isn’t the loneliest number in tech these days: From HTC Corp.’s effort at primacy in the smartphone market to Microsoft’s long-awaited Xbox refresh, the number suggests consumers are buying the last piece of hardware they’ll ever need. Indeed, Microsoft spent most of Tuesday’s invitation-only event for Xbox One talking up its “future-proof” features. Some of the most intriguing among them include: Multitasking: Existing consoles, including the Xbox 360, offer buyers video playback, recording, chat and other social features, but Tuesday’s demonstration shows a device that does it all more smoothly. Users can chat on Skype on one side of the TV while watching sports on the other—or switch between videogame, fantasy and live-action football without a second’s delay in between.

Eight years in the making, Microsoft finally showed off its next generation Xbox videogame console. Digits was live at the event.

Samsung Electronics Co. on Tuesday unveiled its  "Samsung Wallet" app that allows users to save credit card information on their smartphones to make purchases online.

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A screen shot of Samsung's Wallet app

The move is yet another effort by Samsung to differentiate itself in the crowded smartphone market and beef up its software capabilities, an area it has traditionally been weak in. Users can make online payments with their mobile phones through a much simpler process by using the app, instead of having to plug in personal user information like identity numbers and various passwords.  

The global market for smartphones is set to get even more crowed as a new device--dubbed Jolla --will hit some European countries with a 399 euros ($513) price tag later this year.

Tumblr users offered a range of reactions -- some hostile, some amused -- to the news that Yahoo would buy the site.

As if Yahoo didn’t make enough news on Monday with a blockbuster $1.1 billion acquisition of blogging and photo-sharing site Tumblr, the Internet pioneer also said it had leased office space in New York’s Times Square and unveiled a revamp of photo-sharing service Flickr.

GrubHub and Seamless, two startups that let people order restaurant takeout without leaving the sofa or even picking up the phone, said Monday they are merging.

With its $1.1 billion buy of Tumblr, Yahoo is getting a site with rocketing growth but will little money. Here are the key numbers behind the site.

How does Yahoo CEO Marissa Mayer justify her company’s $1.1 billion purchase of blogging site Tumblr? One word: growth.

It was a bit of a mystery in April when John McCool--for years one of the most prominent people at Cisco Systems--left the company suddenly without explanation. We now have an answer: Firetide.