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Don’t buy a 5G smartphone—at least, not for a while

Enlarge / 5G is here, but that doesn’t mean you have to buy into it. 2019 is going to be the year of 5G—at least, that’s what the cellular industry keeps saying. We’re going to see the launch of several 5G smartphones from OEMs like Samsung,...

A New App Can Detect a Blood Disorder From a Photo of Your Nails

Cellular Signal Detecting the most common blood disorder in the world is now as easy as snapping a smartphone photo. Anemia is a condition in which a person’s blood doesn’t contain enough functioning red blood cells, which are responsible for transporting...