Canon EOSDigital Rebel XTi vs Canon PowerShot S3 IS digital camera ratings
We think 2.5 inch screen at Canon EOSDigital Rebel XTi is better than 2 inches screen size at PowerShot S3 IS.
With its declared 10.1 maximum screen resolution Canon EOSDigital Rebel XTi digital camera is able to produce finer pictures than Canon PowerShot S3 IS which has 6Mpix picture quality.
Canon PowerShot S3 IS has nicer optical zoom (12x) than Canon EOSDigital Rebel XTi which has 3x optical zoom.