Motorola, the world's second-biggest maker of mobile phones, has unveiled several new handsets, including the Krzr and the Rizr, which are narrower than its flagship Razr.
The new models are part of a family of mobile phones that Motorola is building around the Razr, which has helped the company revitalise its brand in the last two years.
As competitors like Samsung followed suit with their own skinny phones, Motorola hopes to keep up the momentum of the Razr with new models inspired by its style and four-letter name.
Motorola has sold about 50 million Razr phones since they were first launched in late 2004. Its latest phones included those designed for high-speed mobile web-surfing and phones with dedicated buttons for cameras and music players as well as a new sliding format.
The Krzr, a 42-millimeter-wide phone, flips open like the 54-millimeter-wide Razr but is slightly thicker as it has a camera and space for extra storage for up to 500 songs.
Motorola expects the latest products to ship at a rate similar to the Razr in their first quarter on the market. The Razr sold 750,000 phones in its first three months on the market.
Motorola also unveiled the Rizr last night, which is 46 millimeters wide and slides open. It gives users the option of turning the phone sideways when it is closed to take landscape photographs using a dedicated button for its 2-megapixel camera.
