Devices systems and methods are disclosed that allow a patient to self treat a medical condition such as a migraine headache an epileptic seizure a neurodegenerative disease such as dementia Alzheimer s disease ischemic stroke post concussion syndrome chronic traumatic encephalopathy or the like by electrical non invasive stimulation of a vagus nerve. The system can comprise a handheld stimulator which is applied to a surface of the patient s neck wherein the stimulator comprises or is joined to a mobile device. A camera of the mobile device may be used to position and reposition the stimulator to a particular location on the patient s neck. The system may also comprise a base station that is used to meter the charging of a rechargeable battery within the stimulator. The base station and stimulator transmit data to one another regarding the status of a stimulation session.
