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Apple has announced the next-generation iPhone, the iPhone 4S. Although externally it appears identical to the iPhone 4, internally it's seen many changes. It includes the same dual-core A5 processor that debuted in the iPad 2. Its graphics processor, which is also dual-core, provides up to 7 times the graphical performance of the iPhone 4′s A4 chip. The iPhone 4S has improved battery life over its predecessor, and it now allows for 8 hours 3G talktime, 14 hours 2G talktime, and 6 hours of 3G web browsing. The iPhone 4S's wireless system has also been tweaked; the handset will now intelligently switch between antennas for optimal performance. This not only improves signal reliability, it also doubles the theoretical maximum speed from 7.2 Mbps on the iPhone 4 to 14.4 Mbps on the iPhone 4S. The iPhone 4S is now with integrated chipsets for both GSM and CDMA network,as there will be only one "model" of iPhone 4S that should work on virtually any carrier in the world. The iPhone 4S has a much-improved 8 megapixel camera that can shoot up to 3264 x 2448 images. Its backside-illuminated sensor allows it to capture 73 percent more light per pixel than the iPhone 4, and a five-element lens leads to photos that are up to 30 percent sharper than those on the iPhone 4. A new signal processor enables face detection and 26 percent better white balance. The camera also works much faster than on previous models; Apple claims it takes only 1.1 seconds to take the first photo, with <b>...</b> |
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| Time: 27:49 | More in Science & Technology |
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