A PORTABLE DEVICE

摘要

A handportable device is disclosed which comprises a user interface (24), means (21; 22) for determining a current circumstance of the device, a comparator for comparing the current circumstance with a given threshold, and control means (23) for controlling functionality relating to the user interface (24) depending upon the output of the comparator. The current circumstance may, for example, be a particular condition (e.g. status of the device such as low battery or mode of operation) or a particular situation (e.g. time of day, ambience).