Finnish phone giant Nokia has vowed to fight back as it battles for customers in the increasingly competitive smartphone market.

The company unveiled three new smartphones - E7, C7 and an updated C6 - at London`s Nokia World conference.

The C6, C7 and E7 devices all run on Symbian, the most widely used mobile operating system in the world.

The C6 and C7 are both consumer devices with touch screens, high quality cameras and access to Nokia`s Ovi app store and Ovi maps navigation service. The E7 is the firm`s flagship business phone with a full qwerty keyboard and tilt screen.

Nokia`s Niklas Savander told delegates the firm had been losing out to rivals.
Nokia said it currently sells around 260,000 smartphones every day. Nokia is still the largest maker of smartphones but is facing stiff competition from the likes of Apple, Google and Blackberry maker RIM.

BDST: 2115 HRS, 14 September 2010