Canon PowerShot S3 IS vs Casio EXILIM EX-Z600 camera reviews
We think that EXILIM EX-Z600 has nicer screen with 2.7" screen size than PowerShot S3 IS with its 2" large screen.
Picture details on both,these digital cameras could be specified by its amount of pixels it has on each picture and it is 6Mpix on both.
Optical zoom at Canon PowerShot S3 IS is 12x. Optical zoom at Casio EXILIM EX-Z600 is 3x (which is obviously lower).