A hand-held electrical communication device including an image sensing unit, a mobile TV receiver, an image signal processing unit, a display unit and a baseband processing unit is provided. The image sensing unit generates an original image frame. The mobile TV receiver receives a compressed video data. The image signal processing unit adjusts the original image frame to be an adjusted image frame or decompresses the compressed video data into a video image frame, and respectively scales the adjusted image frame or the video image frame to be a scaled image frame. The baseband processing unit displays the scaled image frame on the display unit.