Reporting on the physical appearance, elderly
participants found the button size to be
sufficient. However, one commented that perhaps
a larger screen could be considered. Elderly
controls reported the PMD was comfortable to
wear, but noted that the lanyard permitted the
PMD to swing about. In terms of the functionality
of the PMD, participants found the audio
volume to be too low and suggested that a
replay function be introduced so that the previously
delivered reminder could be watched a
second time, if required. In one of the user trials,
the caregiver recorded a reminder to charge
the device, but the PMD required charging prior
to the delivery of the reminder.