Dimensions :
E-1000 : 172.4 � 73.4 � 21.6 mm (width � height � depth)
PSP-3000 : 169.4 x 71.4 x 18.6 mm (width � height � depth)
PSP-1000 : 170 x 74 x 23 mm (width � height � depth)

Weight :
E-1000 : 223g
PSP-3000 : 189g
PSP-1000 : 260 g

Screen :
E-1000 : 4.3 �, (16:9),TFT, 16,770,000 colours .
PSP-3000 : 4.3 �, (16:9),TFT, 16,770,000 colours .
PSP-1000 : 4.3 �, (16:9),TFT, 16,770,000 colours .

Speakers :
E-1000 : Monaural speaker.
PSP-3000 : Stereo Speakers.
PSP-1000 : Stereo Speakers.

Some other changes : Lack of LEDs, Power Buttton is now down on the console, entire back pannel is an opening hood.