The Apple iPhone 7 Plus can't quite keep up with the best in terms of pixel-level detail but otherwise delivers very good image quality all-around. Its unique selling point is its dual-camera with a 56mm 'tele-lens.' It allows for the best zooming of all current smartphones, offers an alternative angle of view to the wide-angle and works well in Apple's new portrait mode. There is room for improvement as far as the dual-camera's low-light performance is concerned, but overall the system is a true step forward for mobile photography.
Zooming, people photography, video;
Low-light photography with the longer lens;