Kyocera has just announced the Digno Rafre for the Japanese market, said to be the world's first smartphone that can not only be rinsed in water, but can also be washed with hand soap. Waterproof phones are fairly common around the globe already, but none has claimed to be able to stand up to the rubbing and soap usage that comes with a thorough cleaning.
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This looks like a nice smartphone. The Japanese release very useful stuff.