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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.
Apple claims its A6 chip at 1.3 GHz is powerful, but it won't sacrifice speed for battery life. The S4 will have an octo-core clocked at 1.6GHz or a quad-core 1.9GHz.