A wearable device, comprising: a cover, having at least one wall, that defines an accommodating space; a short distance communication module disposed in the accommodating space, the short distance communication module comprising a coil and an activator electrically connected to the coil and configured to apply an electric current varying with time, to the coil, to make the coil generate electromagnetic signals for communication with an external device; a conductive film disposed on a surface of the wall of the cover, the conductive film comprising a plurality of conductive wires that are interlaced with each other to construct a plurality of conductive units; a touch detecting unit electrically connected to the conductive film and configured to detect an integral effect of electrical signal changes of all of the conductive units in the conductive film to generate a detecting signal, the integral effect contributed by all of or any effective part of the conductive units; and a controller electrically connected to the touch detecting unit and the short distance communication module, and according to the detecting signal generated by the touch detecting unit, the controller configured to control or adjust the electromagnetic signals generated by the coil of the short distance communication module, wherein the conductive film comprises a sensing part that is split into a first area and a second area which are electrically disconnected from each other, the sensing part in the first area and the sensing part in the second area transmit signal changes to the touch detecting unit for the controller to control the short distance communication module to enable transmission of the electromagnetic signals in response to a touch on the first area and to control the short distance communication module to disable transmission of the electromagnetic signals in response to a touch on the second area. a cover, having at least one wall, that defines an accommodating space; a short distance communication module disposed in the accommodating space, the short distance communication module comprising a coil and an activator electrically connected to the coil and configured to apply an electric current varying with time, to the coil, to make the coil generate electromagnetic signals for communication with an external device; a conductive film disposed on a surface of the wall of the cover, the conductive film comprising a plurality of conductive wires that are interlaced with each other to construct a plurality of conductive units; a touch detecting unit electrically connected to the conductive film and configured to detect an integral effect of electrical signal changes of all of the conductive units in the conductive film to generate a detecting signal, the integral effect contributed by all of or any effective part of the conductive units; and a controller electrically connected to the touch detecting unit and the short distance communication module, and according to the detecting signal generated by the touch detecting unit, the controller configured to control or adjust the electromagnetic signals generated by the coil of the short distance communication module, wherein the conductive film comprises a sensing part that is split into a first area and a second area which are electrically disconnected from each other, the sensing part in the first area and the sensing part in the second area transmit signal changes to the touch detecting unit for the controller to control the short distance communication module to enable transmission of the electromagnetic signals in response to a touch on the first area and to control the short distance communication module to disable transmission of the electromagnetic signals in response to a touch on the second area.