Sony Ericsson has announced two new models in its Z range of mobile phone handsets; the Z250 and the Z230.

The new Sony Ericsson Z320 is a 1.3 megapixel sporting clamshell with the ability to store up to 100 pictures in its Pocket Photo Album.

The Z320 is a GSM/GPRS 900/1800/1900 and 850/1800/1900 clamshell phone and will be available in selected markets from Q3 2007.

The Sony Ericsson Z250 clamshell also announced today is a pocket-sized handset that is 19mm thick and wrapped in a metallic finish.

According to Sony Ericsson the phone "Builds on the story of the recently announced T250 stick or ‘candy bar’ phone".

Offering up to 7 hours talk time and up to 300 hours standby the phone is available in three guises; the Z250i, Z258c and Z250a. The Z250i and Z258c will offer GSM/GPRS 900/1800/1900 connectivity while the Z250a will offer GSM/GPRS 850/1800/1900 connectivity.

All three models are expected in Q3 2007.