What is pixel binning and how can it help my smartphone photography?

Although far from a new technology, you might have heard the term ‘pixel binning’ popping up with increasing frequency in relation to a number of recently-announced smartphones – like the Samsung Galaxy S21 Ultra – and wondered what it means. You might be especially concerned by what it means for the quality of your smartphone images.  First, we probably need a quick reminder of exactly what a pixel is in the first place.

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