Method for retrieving object information and portable electronic device applying the same

A method for retrieving object information applied to a portable electronic device including a global position system (GPS) module, a magnetic sensing module, a touch input module, and a processing module, the method comprising the following steps:

• receiving a position signal by the GPS module to get GPS data;
• sensing a magnetic field by the magnetic sensing module to get azimuth direction data;
• inputting an event by the touch input module to get input direction data, wherein the event is a movement moving from a touch position on the touch input module towards an object;
• calculating an angle difference between an azimuth direction and an input direction by the processing module to get angle difference data according to the azimuth direction data and the input direction data;
• and
• retrieving information of the corresponding object from a database according to the parameters of the GPS data, the azimuth direction data and the angle difference data to calculate via the processing module.