I've owned cell phones ever since they were first introduced, had to, needed them for work.
I am 68 and I can tell you for a fact that most smart phones will do wa-a-ay more than what most of us old-timers are aware of.
I am not going to reveal any of the many cool easy things they are capable of so as to appear intellectually superior to the rest of you.
My advice: Get to know your smart phone. It is your friend.