Fitbit on Tuesday unveiled its "smart fitness watch," aiming to get into the growing smartwatch segment with upgraded fitness tracking features.

But the company's share price plunged amid disappointment over its prospects for keeping pace with rivals like Apple Watch.

Twitter's 140 character limit on tweets has long frustrated and challenged its most verbose users.

Now the company could offer a solution, according to tech news website re/code: the 10,000 character tweet, which could be available as soon as March.

Global app usage soared in 2015 as a growing base of smartphone users found new ways to use their devices, a study showed Tuesday.

The survey by Yahoo-owned analytics firm Flurry found app usage on mobile devices jumped 58 percent last year, cooling slightly from 76 percent growth in 2014.

The mystery electric car startup Faraday Future, which seeks to "redefine mobility," unveiled its first prototype vehicle on Monday while offering few details on its ownership and structure.

The company called Faraday Future took the wraps off its Batmobile-style vehicle which is part of a plan to compete against the likes of Tesla and reshape the auto sector.

France's stock market regulatory body said Monday that Finnish telecom group Nokia's all-share offer for French-American rival Alcatel-Lucent had been successful.

Nokia now holds around 76 percent of shares and voting rights in Alcatel, the French financial market authority, AMF, said in a provisional report.

Apple has raised the prices for handheld devices in Germany following a deal between the tech industry and content producers that will benefit musicians, actors and pornographic filmmakers.

The California-based company confirmed in a statement Sunday to The Associated Press that the price increase affecting iPhones and iPads is linked to the new copyright levy.

India notched up its billionth mobile phone subscriber in October, the country's telecoms regulator said, underscoring the importance of its fast-growing mobile market, the world's second-largest after China.

Mobile phone subscriptions have boomed in India in recent years as aggressive cost-cutting by telecoms providers has driven down prices, leading to some of the cheapest tariffs in the world.

Americans are generally getting much faster Internet speeds than a few years ago, but growth is uneven depending on the type of connections, a government report said Wednesday.

The Federal Communications Commission said average download speeds tripled from March 2011 to September 2014, the most recent figures available from a survey of major U.S. Internet service providers.

Twitter said Tuesday it was take new steps to stem "abusive behavior and hateful conduct" on the global messaging platform.

The move comes with social networks under pressure from the U.S. and other governments following attacks in Paris and California to do more to weed out those plotting violence.

Facebook founder Mark Zuckerberg urged India Monday to approve a controversial plan that would provide a free Internet service to the poor, his latest bid amid an escalating row with authorities. 

The head of the social network tried to drum up support for the Free Basics service that offers people without the Internet free access to a handful of websites through mobile phones, in a column in the largest-selling English daily The Times of India.