Research In Motion announced two upgraded BlackBerry Bold smartphones plus a updated operating system on Monday as it sought to regain its stride after a profit warning.

RIM said the phones would have more processing power than the original Torch, which RIM touted as a worthy competitor to the iPhone back in August when it last updated its aging platform.

The Canadian company also launched a video chat application for its recently launched PlayBook tablet computer.

RIM stunned investors with a profit warning last week, just a month after giving a dismal outlook. It said sales of its aging phones lagged, especially in the vital U.S. market and Latin America, as Apple and Google powered on.

(Reporting by Alastair Sharp)