Picking up the baton of O2's ‘X' range of products, the X4 is the first to offer 3G but will it offer enough features and is the usability any good? We test the dog and bone to find out.

The O2 X4 is an attractive 3G mobile phone which comes in a black & silver coloured casing with a squared feel to its design. The handset is compact & attractively sleek & the edges are perfectly rounded off to give the handset a squared & chunky feel...

O2 X4 è un telefono UMTS Dual-band multifunzione, con antenna fissa e doppio display a colore. E' in grado di offrire le ultime tecnologie per rendere più semplice la comunicazione, dalle funzioni voce a quelle per la trasmissione dei dati tramite la...