A company has developed a nanotech coating for smartphones which makes it possible to use them underwater.

preview for next year's CES technology conference in Las Vegas showed off the new coating for smartphones and a working phone was dipped into a bowl of water, and was still working even below the surface.
The CEO of the company HZO, which makes the coating, made a call to the Galaxy S, and it rang underwater.
The technology works by spraying an ultra-thin coat over the exterior and ports of gadgets, preventing water damage.
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The HZO coating is a mix of various substances that spray over electrical components and protect them from water damage, even inside the ports on electrical devices
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"HzO uses a unique coating processes to shield almost anything from water and corrosion damage," the Daily Mail quoted the company as saying.
"Unlike other water damage solutions, with HzO technology a device is not sealed, water is able to enter," it added.
Source-ANI