A separated communications device includes a body and a movable connector; the body includes an antenna and a first conductive strip, and the antenna is electrically connected to the first conductive strip; the movable connector includes a second conductive strip; when the movable connector is connected to the body, a part, covered by the movable connector due to the connection, on a surface of the body is a connection position of the body; and the antenna is disposed on the body near the connection position. When the body is connected to the movable connector, the second conductive strip is connected to the first conductive strip, so that the first conductive strip serves as a part of the antenna, and the second conductive strip serves as an extended part of the antenna.