To solve the problem: a user must be put into an environment where a portable device can immediately used or be assisted, because the environment where the portable device is used may generally change moment by moment in such a case that the user wants to take out the portable device from a bag or a pocket to use it immediately.

The portable device includes a processing section for executing processing and a control section for causing the processing section to execute at least any processing on the basis of a result of acquiring the biological information of the user and a result of detection by an acceleration sensor.