It's worth noting that the photos in Portrait mode that have the applied depth of field blur result in smaller images than the pictures without it. When physically moved closer to your subject, some light depth of field is present, but with the larger picture size. Currently, Portrait mode photos also appear slightly noiser than regular photos. But the smaller size and slight noise may be worth it to some if they're in a well-lit area, and desperately need some DOF. Apple's update is scheduled to hit iPhone 7 Plus users' phones "later this year."