An electronic device, a method for transmitting a message and related products are provided. The method for transmitting a message is applicable to an electronic device and the method includes the following. Predetermined information is obtained, where the predetermined information includes system time, flow of people in a predetermined area, and location information of the predetermined area. A transmission power of a LPWAN wireless-communication module of the electronic device is adjusted according to the predetermined information. A message to be transmitted is determined. The determined message is transmitted according to the adjusted transmission power by the LPWAN wireless-communication module.