Check out the following video comparison of the two handsets and see how the fair against each other.
The HTC One S features a 4.3-inch Super AMOLED display, 16GB of internal storage, 8 megapixel camera capable of capturing 1080p HD video and is powered by a 1.5GHz dual core processor.
The Apple iPhone 4S features a 3.5 inch retina display, up to 64GB of internal storage, an 8 megapixel camera with LED flash which is capable of capturing 1080p HD video and is powered by a dual core A5 processor.
Check out the detailed comparison of the HTC One S and the Apple iPhone 4S on PhoneArena.