Research in Motion (RIM) has unveiled two new versions of its BlackBerry Bold smartphone and three new models of the BlackBerry Torch handset, all of which will run the firm's latest iteration of the BlackBerry operating system.

RIM said the BlackBerry Bold 9900 and 9930 were the company's "thinnest smartphones ever" with the 9900 measuring just 10.5mm thick. The brushed stainless steel handsets, which both support Near Field Communications (NFC) technology that among other things let users pay for goods and service by simply tapping their smartphone on a special pad, are the first BlckBerry Bold smartphones to offer both a touchscreen display and a QWERTY keyboard.

Meanwhile, the BlackBerry Torch 9810 smartphone comes with a 3.2in touchscreen display and a slide-out keyboard while the BlackBerry Torch 9850 and 9860 boast a 3.7in display, the largest on a BlackBerry handset to date.

All of the smartphones features a 1.2 GHz processor, HD video recording capability and 24bit high resolution graphics.

RIM said the latest edition of its mobile platform, BlackBerry OS 7, benefits from 40 percent faster web browsing compared to BlackBerry OS 6 smartphones thanks to the advanced WebKit browser engine coupled with improvements to the handsets. Furthermore, the mobile platform also comes with optimised zooming and panning, improved HTML5 performance and Liquid Graphics technology, which works in conjunction with the handset's dedicated graphics processor, CPU and display to deliver "a highly responsive touch interface with incredibly fast and smooth graphics".

Users will also benefit from the latest edition of BlackBerry Messenger and pre-loaded apps such as the Premium version of Documents To Go, which offers document editing features, as well as a native PDF document viewer and support for voice-activated search.

"The BlackBerry solution offers a best-in-class mobile communications experience that customers love and we think they will be thrilled by the faster performance, enhanced browsing and richer multimedia delivered by these powerful new BlackBerry Bold and BlackBerry Torch smartphones," said Mike Lazaridis, president and Co-CEO of Research In Motion.

RIM has yet to reveal pricing and availability for the handsets.