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They presented the dynamic depth control with the words: "No other smartphone right now can do that".

Lie. I'm writing this comment on a Vivo Nex and I have been using this for months.

No, the Vivo Nex cannot adjust depth of field in post-processing. It can adjust depth of field (via aperture) before capture.

Wrong. I shoot the photo, and can afterwards (or whenever I stumble upon the photo in my gallery) adjust the depth of field with a slider. Pretty similar to what they did in the presentation. I can even change the subject of focus.

Definitely has the option to adjust depth of field in post-processing. Done it lots of times.

Not a smartphone, but there's also these: https://en.wikipedia.org/wiki/Light-field_camera

And this isn't done through ML trickery.

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