The one place that the iPhone 4S had any sort of advantage over the Canon S95 is in lens distortion. But, that's only when the Canon S95's 3.8X zoom lens was at its widest or at its midpoint. At those settings, the S95 had 0.3% and 0.33% barrel distortion respectively, which we rate as Visible, while the iPhone 4S showed 0.15% barrel for a Slight rating. Zoom the S95 all the way out to 3.8x, aka a 105mm equivalent in 35mm-photography terms, and distortion fell to a mere 0.08%, which we deem Imperceptible. All told, the Canon S95 offers a vastly better shooting experience, with a robust control system, and plenty of options to help you control what kind of image you'll get.