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Broadcom's new chip brings GPS to smartwatches without killing the battery

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Mobile World Congress kicks off next week, so it's high time that the behind the scenes players showed off what'll linger beneath the aluminum and Gorilla Glass of next-generation devices. Broadcom is unveiling the BCM4771 GNSS SoC, a wittily named slab of silicon that promises to make the GPS units of smartwatches less power-hungry and more accurate than before. Thanks to its 40-nanometer construction and a new sensor hub that integrates everything into one package, the chip also claims to be much cheaper than the existing tech. It's pencilled in for a launch at the end of March, so hopefully we'll see wearables in the Fall boasting of a battery life that's longer than, say, an hour.