An electronic device includes a sensor, a processor, and a memory configured to store at least one instruction executed by the processor, wherein the processor is configured to collect activity information on a user related to the electronic device by using the sensor, the collecting of the activity information including creating an amount of activity of the user for a specific goal or an activity engagement level for the specific goal by using the activity information, adjust at least one of an output time point, an output cycle, the number of outputs, or the output contents of the activity guide information for the user to an activity guide parameter at least based on the amount of activity or the activity engagement level, and output the activity guide information created by using the adjusted activity guide parameter through an output device operatively connected to the processor.