Huawei, China’s largest maker of telecommunications gear, unveiled the “Ascend” smartphone, touting it as the slimmest on the market as it moves to boost its share on the global consumer market. Huawei unveiled the Ascend smartphones – available in black, white and pink – at the Consumer Electronics Show in Las Vegas. The 6.68-mm thin phone will be available in April 2012 in markets from North America, Europe to Asia and will cost roughly $400, but the final price has not been set, the company said.

AT&T announced plans to launch seven new smartphones and a tablet computer early this year for a new wireless network it is building. The product line-up will include a phone with a 16 megapixel camera from HTC using Microsoft software along with Microsoft-based smartphone from Nokia. AT&T said it will also sell three new high-speed smartphones from Samsung as well as a high-speed phone from Sony and Pantech. In an unusual pricing move, AT&T also announced that it would sell Pantech Element, a waterproof tablet based on Google Android software with a smartphone, the Pantech Burst, for a combined price of $249.

Samsung Electronics, the world’s top maker of memory chips and smartphones, reported a record quarterly profit, aided by one-off gains and best-ever sales of high-end phones. The South Korean firm posted 5.2 trillion won ($4.5 billion) in quarterly operating profit, beating a consensus forecast of 4.7 trillion won by analysts surveyed by Thomson Reuters I/B/E/S. Samsung, which surged past Apple as the world’s top smartphone maker in the third quarter, only entered the smartphone market in earnest in 2010, but its handset division is now its biggest earnings generator.

Taiwanese smartphone maker HTC recorded a worse-than-expected yearly profit decline in the fourth quarter, and the first decline in two years. The former investor darling shocked markets in November by slashing its fourth-quarter revenue guidance, sending its shares down 28 percent in two weeks and 15 percent to date. Investor concerns linger over whether HTC still has the innovative streak that catapulted it from an obscure contract maker to a top brand.