Apple filed papers on Tuesday telling a federal appeals court in New York that a judge's finding it violated antitrust laws by manipulating electronic book prices "is a radical departure" from modern antitrust law that will "chill competition and harm consumers" if allowed to stand.

Apple filed its formal written arguments before the Second U.S. Circuit Court of Appeals, asking the appeals court to overturn the judgment in Apple's favor, or grant a new trial in front of a different judge.

Samsung's upcoming Galaxy S5 smartphone will be at least the third to have a fingerprint sensor for security but it's alone in letting you use that for general shopping, thanks to a partnership with PayPal.

The sensor brings convenience for entering passcodes and could encourage more people to lock their phones. But fingerprint security isn't foolproof.

A small band of upstarts is chipping away at Google's mighty Android, hoping one day to overthrow the system that runs eight in 10 smartphones sold worldwide.

Mozilla's Firefox OS and the Samsung-promoted Tizen staked a small claim to the market at the industry's largest fair, the February 24-27 Mobile World Congress in Barcelona, Spain.

A mobile device coupled to a toothbrush is presented at the Mobile World Congress in Barcelona, on February 24, 2014

The world's first smart toothbrush was unveiled Monday, allowing you to improve your dental hygiene while sharing the results online with your dentist or to impress your friends.

A Chinese company suing Apple over similarities between its product and the "Siri" personal assistant believes its case has merit and is awaiting a court ruling, a lawyer said Tuesday.

Shanghai's Zhizhen Network Technology, which holds the rights to "Xiao i Robot" software patented in 2004, has accused the U.S. technology giant of infringing patents with its "intelligent personal assistant" Siri.

Business networking site LinkedIn has launched a Chinese version, attempting to tap the huge market while navigating a strict censorship regime that has seen other foreign social media giants banned.

China has the world's largest online community with more than 618 million users. But its so-called Great Firewall blocks any online forums or content deemed sensitive, and it has barred access to Facebook and Twitter for several years.

Samsung on Monday unveiled a new smartphone with a built-in heart rate monitor to complement three upcoming fitness devices, as the Korean companies tries to turn its technological wizardry into lifestyle products that matter.

The new Galaxy S5 phone has a slightly larger screen than its predecessor, at 5.1 inches (12.95 cm) diagonally instead of 5 inches in the S4. But the size increases have slowed down compared with previous jumps.

Fresh from a $19-billion (14-billion-euro) takeover by Facebook, mobile messaging service WhatsApp said Monday it will launch free voice calls by mid-year.

The introduction of free calls, revealed on the opening day of the four-day World Mobile Congress in Barcelona, Spain, would match rival application Viber's similar offering.

The astonishingly high price paid for the messaging service WhatsApp underscores how mobile apps are transforming the way we communicate, shaking up the global telecom sector.

Facebook's deal to pay up to $19 billion for WhatsApp comes on the heels of a $900 million purchase of another messaging service, Viber, by Japanese Internet giant Rakuten.

LG will launch its first smartwatch in 2014, the head of its mobile unit said Monday, tapping into the nascent market for wearable devices seen as the mobile industry's new source of growth.

The announcement from the South Korean smartphone maker came after industry leader Samsung on Sunday launched the second generation of its own Internet-enabled smartwatch, the Gear 2.