Wearable technology has evolved from concepts in science fiction to devices that are commonly used today. Some key developments include smart watches introduced in the late 1980s, augmented reality headsets in movies from the 1980s and 1990s, and medical devices such as glucose monitors in recent years. Going forward, implantable devices are likely to become more common, with concepts like smart dust, verified identity chips, and 3D printed organs being possibilities in the future. Wearables show promise for helping people with disabilities through devices that aid vision, hearing, mobility, and communication.