AT&T and Sony Ericsson have launched two new mobile devices, the Sony Ericsson C905a Cyber-shot and the W518a Walkman, to offer photography and social networking experiences to their customers.

According to the companies, the C905a Cyber-shot – a 3G slider phone with 8.1 megapixel camera – features a 2.4-inch scratch-resistant mineral glass screen, face detection, xenon flash with red-eye reduction, and Memory Stick Micro (M2) storage, compatible up to 16GB.

The C905a also comes with a USB cable that enables printing from the device to PictBridge compatible printers; BestPic technology to capture seven successive photos with one click; and the Smart Contrast feature to compensate for areas that are too bright or dark. It comes loaded with an array of multimedia offerings, including AT&T Video Share, video recording, AT&T Music, FM radio, Mobile Email, AT&T Navigator and instant messaging.

The W518a Walkman phone comes with a 3.2 megapixel camera and allows users to use Facebook, conversational messaging, and interactive music features, the companies said.

The W518a features a Shake Control technology which allows users shuffle, skip and control volume with a flick of the wrist. It also allows users to purchase and download music over the air from Napster Mobile and eMusic Mobile through AT&T Music. In addition to Shake Control for music, Gesture Control technology allows users reject incoming calls or send the alarm to snooze with a wave of the hand over the W518a’s camera lens.

AT&T said both models will be available in its stores beginning July 19. The C905a is expected to be available for $179.99 and the W518a for $49.99, after mail-in rebate with a two-year service agreement.