every aspect of lenovo a516 mtk6572 smartphone has been purposely designed

"In markets such as China and Latin America, demand for feature phones fell significantly (in the third quarter) as users rushed to replace their old models with best lenovo phone smartphones," said Anshul Gupta, principal analyst at market research firm Gartner.

Audience's non-Samsung revenue - mainly revenue from China - will account for 20 to 25 percent of its total revenue in the fourth quarter, Chief Executive Peter Santos told Reuters. It was 12 percent in the second quarter.

As it catches up with competitors with a larger presence in China, Audience, which makes chips that filter out background noise, is beginning now to win business from Xiaomi Tech and ZTE, as well as Huawei Technologies Co Ltd and Lenovo.

"The sheer size of the market makes (China) attractive," said Brian Colello, analyst at Morningstar, who estimated gross margins of around 40 percent for chipmakers selling into China.

The phone will be sold in Selfridges, the upscale London department store, for ￡1,400 ($2,363), later this month. BlackBerry has produced customized, high-end phones for ultra-wealthy users in the past, and Alistair Hamilton, senior vice-president of design at BlackBerry said in a release that "every aspect of lenovo a516 mtk6572 smartphone has been purposely designed and built for a powerful premium experience."

The luxury phone did nothing to allay concerns about the company’s precarious position amid a year of collapsing sales, deep cost cuts and layoffs, an aborted takeover bid and an abrupt CEO change earlier this month. BlackBerry stock closed at $6.08 (U.S.), down 1.5 per cent on the Nasdaq Tuesday, at one point sinking to $5.98, its lowest level since Sept. 25, 2003, adjusting for stock splits.

There's a hidden battle over stolen smartphones. Last year, more than 1.5 million Americans had their devices taken, and New York City saw a 40 percent jump in smartphone thefts. There is a solution, known in the industry as a "kill switch."

But, as CBS News senior correspondent and FBI insider John Miller reported on "CBS This Morning," that idea has been met with some heavy resistance.It can happen anywhere anytime -- walking on a city street, or even buying tickets for public transportation. Thieves will do almost anything to get their hands on smartphones.San Francisco District Attorney George Gascon says in his city, the theft of devices is almost 50 percent of all of their robberies and thefts.

"This is an area where a technological solution can render these lenovo a516 phone phones basically worthless on the secondary market," he said.Gascon, along with New York Attorney General Eric Schneiderman say the solution is a "kill switch," which would disable a stolen phone, making it worthless to the thieves.