Hi sangeo, welcome to the Sony Forums 
There's no physical difference but sometimes firmware etc can differ.
The 'e' on a Sony camera denotes a European model, to differentiate it from those designed for use in the US or Asia.
Firmware may adapt the camera video settings to work in a different region; you may also find the warranty on an 'e'-designated model will not be valid outside of Europe.
Hope that's of some help.
Cheers
Mick