Sony Ericsson will upgrade its Android-based Xperia Arc smartphone with a faster processor, the company announced at the IFA consumer electronics show in Berlin on Wednesday.

The Xperia Arc S will have a souped-up processor rated at 1.4GHz, compared to 1GHz for its predecessor. The improvement in clock speed will result in a 25% faster camera start-up and 20% faster web page rendering compared to Xperia Arc, according to Sony Ericsson's internal test.

Xperia Arc could still struggle in market - Analyst

The new iteration is Sony Ericsson's reaction to the processor wars that have been raging in the smartphone market, according to Ben Wood, director of research at CCS Insight. But he said that without a dual-core processor, the Xperia Arc S is going to have a tough time when compared side-by-side with other smartphones.

The size and much of the rest of the specification has been inherited from the original version, including a 4.2-inch screen and an eight-megapixel camera.

Consumers will be able to take panorama images in 2D and 3D. The same feature will also be available on other models in the Xperia family via a software update.

The Xperia Arc S will start shipping during the last three months of the year, although pricing is yet to be announced.