Clinical assessments can only offer a snapshot of daily life with Parkinson's Disease, while wearable devices can offer immensely more information that can improve the understanding of this disease. With recent advancements in technology, investigators are now able to use watch-like devices to more effectively measure the symptoms of Parkinson's Disease outside of the doctor's office. The present study is designed to evaluate the usability, applicability, and interpretability of an electronic VA Patient Motor Diary (eON-OFF), MC10 BioStampRC actigraphy sensor, APDM actigraphy sensor and the GENEActiv Watch in persons with Parkinson's Disease. There is no placebo/control group.