Sony released an upgraded version of its Android tablet on Wednesday, branding its rival to Apple Inc’s iPad and SamsungElectronics’ Galaxy as “Xperia” in a bid to unify its mobile devices under one name.

Sony also unveiled three new smartphone models at a trade show in Berlin.

The Xperia S tablet comes with a 9.4 inch screen and loaded with Google’s latest Android software.

Featuring a 9.4 inch (24 cm) screen and loaded with the Android 4.0 operating system, the Xperia is the second tablet from Sony, which released its first models in April last year.

At the time, Sony said it wanted to claim second spot in the increasingly competitive tablet market ahead of Samsung, but failed to ignite enough consumer interest in the devices.

The iconic Japanese consumer electronics brand also wants to boost sales of digital cameras and games consoles, while nurturing new businesses including medical devices.

Though more powerful than its predecessors, the new tablet from Sony also faces a more crowded marketplace. In June, Microsoft introduced its first tablet, dubbed Surface.

Signs of a turnaround for Sony are yet to emerge. On August 2 it cut its full-year operating profit forecast to 130 billion yen from 180 billion, and slashed its combined sales target for Vita and PSP handheld games consoles to 12 million from 16 million.

The Xperia tablet will retail in the US from September 7, costing $399 for a 16 gigabyte version and $599 for a 64 gigabyte model, the company said in a press release. Like Microsoft’s device it is also available with a keyboard that doubles as a cover, for which consumers will be asked to pay an addition $99.99.