RecruitingBehavioural interventionA Feasibility Study of Biometric Measurements Via Wearable Smart Watch Technology for Evaluation of Vasomotor Symptoms in Patients Treated With Androgen Deprivation Therapy for Prostate Cancer (Prostate 007)The purpose of this study is to find out if patients with prostate cancer who have vasomotor symptoms, commonly called hot flashes, from their Androgen Deprivation Therapy (ADT) will consistently wear a smartwatch device to track their health data, log hot flashes on their smartwatch, and how these data compare with daily surveys about their hot flashes. Participants will be asked to wear the smartwatch for 4 weeks and to log their hot flashes on their smart watch pressing a button on the watch. Participants will be asked to complete surveys (sent through a text message link) to describe their experiences with hot flashes.