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Smartphones are Designed to Fail Us (and We Have to Change That)
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This is a most excellent place for technology news and articles.
Most "50 MP" cameras are actually quad Bayer sensors (effectively worse resolution) and are usually binned 2x to approx 12 MP.
The lens on your phone likely isn't sharp enough to capture 50 MP of detail on a small sensor anyway, so the megapixel number ends up being more of a gimmick than anything.
Now, if the camera isn't the reason anymore, why would you still pay $1200 for a flagship if you get essentially the same for $300?