I almost never use my headphone jack, then I get a 7 and recently got a new car, the bluetooth in car doesn't play audio (unlike my old car) .. So I plugged in an aux cable and literally attempted to plug the other end into the headphone jack of my iPhone 7, only for it to slip off as the headphone jack is not there
I laughed out loud. something I never used suddenly become useful.
You do get a little adapter but I didn't have it with me unfortunately.
Other than that it's not a bad upgrade... the black colour makes the device look great. The display, battery and speed are all a great improvement.
I only upgraded because my 16GB had no space and with these starting at 32GB it was a must for me.