Recent advances in digital technologies have been triggered by Industry 4.0, deeply focused on connectivity, real-time data and digitization, with Digital Twin (DT) at the forefront of this. A DT is a virtual counterpart seamlessly linked to a physical entity, both sharing the same properties, characteristics and behavior, using data and information. Applications of DT include real-time monitoring, design/planning, optimization, maintenance, prediction, remote access, etc. This paper gives an overview of the Digital Twin concept and seeks to synthesize the technologies frequently used to enable it. It is also proposed the creation and use of a Digital Twin of a Power Wheelchair to promote the health and wellness of wheelchair users and facilitate services by healthcare professionals in the provision and support of wheelchairs.