Got two questions.

Hey guys I been wondering. I know the phone has 3gb of ram is there a way to find out how much ram is being used with an app? Another thing I'm confused about the camera. I see there 8mp jpeg + 16mp dng. Though when I take a pic I see one that jpeg at 2160x3840 then I see two dng at like 448x800 is there something wrong? Or am I missing something about this 8mp jpeg+16mp dng setting? I would think dng 16mp would be higher? :/

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