Samsung will introduce an upgraded version of its Q1 ultra-mobile PC with extended battery life, high-speed cellular and a new processor.

The Q1P, a successor to the Q1, will extend battery life to five hours and connect to mobile networks based on HSDPA (High Speed Downlink Packet Access), Gee Sung Choi, president and chief executive of Samsung Digital Media Business, said Friday at the IFA consumer electronics show in Berlin.

The device, to be available in the fourth quarter, will also be equipped with a processor from Via Technologies instead of Intel, which supplied technology for the first model, a company spokesman said.

The spokesman declined to specify the reasons for replacing Intel, pointing only to a need to extend battery life.

The Q1P will include several additional interfaces, but the spokesman declined to provide details.

Pricing information was not available.

The Q1 device, launched earlier this year, runs a tablet version of the Windows XP operating system and is intended to fit in the market between laptop PCs and PDAs (personal digital assistants).

The new version takes advantage of HSDPA, which mobile phone network operators are rolling out with initial speeds up to 1.8Mbps (bits per second). The technology is engineered for peak speeds of 14.4Mbps.

Samsung's ultra-mobile PC already offers Wi-Fi connectivity.