A type of electronic device worn on the body used to track, analyze and transmit There are two common uses of this word. When talking about d.... Wearables can also be embedded in clothing, implanted, or tattoed. Some people use them to replace keys or passwords. Wearables are being adapted for medical purposes to detect and track disease. Other wearables uses are pollution detection, medical alert monitoring, When a device's screen goes dark, but the device is still on... detection, heart rate monitoring, child monitoring, and gaming.