Metal blocks wireless charging signals
As we all know, for years smartphone manufacturers were forced to use polycarbonate or glass for the back of their phones because of the wireless charging feature. The wireless charging signals can’t penetrate through metal. Well, Google has found a workaround, reports Android Authority.
Technically, aluminum is used for the Pixel 5, but apparently, there is another layer of a material that sits directly on top. Google calls this material “bio-resin”, which is basically a super-thin plastic material. The aluminum underneath helps give the Pixel 5 a sturdy and premium structure. Additionally, this design allowed the tech giant to cut a hole in the smartphone’s aluminum chassis and install there the wireless charging coil. Google additionally says that you won’t be able to feel the coil since the plastic material sitting on top of it is very sturdy, despite being super thin.
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