I've used an S6 extensively for a while and the verdict to me is clear. The iPhone wins hands down in user experience. Everything from the quality of the display to the smoothness of the scrolling is just so superior on my iPhone. The disparity isn't obvious when just using the two phones for a few minutes. But if you take the time to use both for quite a while, the differences are fairly evident. Here are just a few gripes about the S6 Display color is way too saturated. WAY too saturated. It's been like this for several generations and I don't understand how people can stand it. Despite having loads of RAM, the interface STILL lags constantly. Scrolling on a page is nowhere near as smooth as on iOS on my iPhone. It's just pitiful for a device that has so much more hardware-wise than the iPhone's The same app on Android is noticeably inferior compared to the iOS version. This has been improved significantly as of late, but by and large, iOS apps just feel more polished. Anyway, all this just makes me appreciate my iPhone more. S6 is a lovely looking phone and I think Samsung did well with the external design of the phone, but the overall experience doesn't match the iPhone's.