Wireless Charging Is Here. So What Is It Good For?

The technology, also known as magnetic induction, is a relatively new feature for powering iPhones and popular Android phones.

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Besides getting bigger, smartphones keep getting — for lack of a better word — glassier. From front to back, the bodies of many of the newest smartphones are composed of glass.

The trend is not part of a broad conspiracy to make you shatter your phone so that you buy a new one. Instead, glass lets energy pass through the phone so that it can be charged wirelessly.

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The technology relies on magnetic induction, which involves using an electrical current to generate a magnetic field, creating voltage that powers the phone without your plugging a wire into it.