With two rear cameras that can blend images into one, the iPhone 7 Plus can take shots that other phones can’t. iOS 10.1 will unlock the so-called depth-of-field feature that allows the phone to blur the background while keeping the foreground subject in focus. It’s not unlike the “bokeh” effect found on higher-end mirrorless cameras. (We used the 10.1 public beta for these photos; quality on the final version may differ.)

Depth effect take photos from looking like a simple snapshot, to a portrait. This one would look good on the wall or the desk at work.

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iPhone 7 Plus 'portrait' mode does background blur better – CNET