Difference between MP3 and MP4 PLAYER?

Difference between MP3 and MP4 PLAYER?

The basic difference is that the fast talking MP3 is a device dedicated only to Audio and the MP4 is dedicated to audio and video. MP3 players do not have (mostly) large LCD screens with high resolutions because they only show the name of the music. MP4 players have big screens for the video (music clip) is shown.