59 mm (W) The Sony Ericsson P800 is a mobile phone introduced in 2002[1] based upon UIQ version 2.0 (which itself is based upon Symbian OS v7.0) from Sony Ericsson.

The P800 uses the UIQ (version 2.0) user interface and has a touch screen much like a PDA.

A updated version of the "P" series phones, the Sony Ericsson P990 was launched at the Symbian Smartphone Show in September 2005.

The latest successor is the Sony Ericsson P1, announced on 8 May 2007.

Whilst using the same UIQ platform as the P990, it has a smaller form factor based on the Sony Ericsson M600 and updated hardware.