The development of sensors that can be discreetly worn on the body or become part of clothing items has opened up numerous possibilities for monitoring patients in the field over long periods of time. Wearable technology addresses an important issue in the treatment of patients undergoing rehabilitation. Wearable technology allows clinicians to collect data from anywhere so they can respond to these issues. Through wearable systems, direct observations can be made regarding the impact of clinical interventions on mobility, independence level and quality of life. This section explains the place and advantages of wearable technologies in different rehabilitation fields. The usage areas of wearable technology are rapidly developing and many clinical studies are being conducted. The potential impact of these technologies on the clinical practice of rehabilitation is increasing day by day. Although the main focus of clinical evaluation techniques is on methods applied in the clinical setting, wearable technology has the potential to direct this focus beyond field clinical settings.