If you have previously used any of the O2 mobile handsets then definitely Serra is the natural step up for you. It has QWERTY keyboard tucked away behind its screen and just as you turn the device on its side and slide the screen, you will find a good quality and spaced keyboard. If you are do not like to use on-screen virtual keyboards or handwriting recognition to type messages on the go then this is the good choice for you. Processing power of this handset has received a boost with a Qualcomm 528MHz chip instead of the 400 MHz engine.

It has 2.8 inch touchscreen with 480×640 pixels native screen resolution. This attractive looking mobile phone is designed in smoky black exterior and very few external ports and buttons are given to trouble its slick design. The home screen of handset has a large digital clock that links you quickly to call history and the calendar and a scrollable line of icons to access the frequently used app.