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Apple touts the iPhone's design, calling its engineering: "A level of precision you'd expect from a finely crafted watch, not a smartphone." In contrast, Samsung's is glued to plastic at a time when others, such as HTC with its latest One device, have turned to full metal casing.
Next is Apple's highly touted Retina Display. For the Galaxy 4S, Samsung introduced a 5-inch screen with 1080p resolution.
Apple says its iPhone will give 8 hours of battery life for LTE browsing and talk (who does that any more?), and 10 hours for video watching. Samsung touts the S4's 2,600mAh removeable battery, but it has a larger screen and even more features to compromise performance. Smart Stay and S Voice both drain the battery more quickly.