https://9to5mac.com/2016/09/12/iphone-7-plus-sensor-size/
the telephoto sensor is 1/3.6" vs 1/3", pretty significantly smaller.
Thanks for that info. A little larger since the aperture is smaller. Still cannot make up the difference though to equal the 1/3" sensor and 1.8 aperture. Although I do wonder why not include the larger sensor with the wide angle lens. That might have been enough to surpass Samsung for low light capability.