Electronic devices for locating and tracking people, vehicles, lost articles, pets, and boats using radio frequency, local area network locations, cellular communication networks, and global positioning systems; Global positioning system; Smart watches; Smart glasses; Smartphones in the shape of a watch; Smartwatches; Sports glasses; Transmitter and receiver used to locate lost pets; Wearable activity trackers; Wearable computers in the nature of smartwatches; Wrist-mounted smartphones