Here's Why Your Phone's Proximity Sensors Are So Important

They do way more than you might think.

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Any recent smartphone, be it an Android device or an iPhone, is chock-full of sensors. It wasn't always this way, but after the original 2007 iPhone, many sensor-reliant features quickly became standard. And of course, phone makers are constantly trying to one-up each other, sometimes in ridiculous ways. For a few years, some Google Pixel phones offered external temperature readers — no matter that even if the technology were…