I'm almost ashamed to admit that I've become almost dependent on mine.
I use it for a phone and camera of course, but I also have my grocery list, Microsoft's authenticator app which I use for work. I have my banking app, solitaire, Facebook, Music, YouTube, I read books on it sometimes, use it to fly a drone, security cameras both at home and at work, credit card apps, weather, news, health care portal where I can check upcoming appointments, pay my bill, view test results, ask questions, etc.
I can program my electronic door locks with it, translate from dozens of different languages, both written and spoken. I can do my Amazon shopping, shop and set up a pickup at Wal-Mart, get a discount when I buy fuel, check my speedometer, order dog food, see what's coming in the mail that day, and I even used it for an Uber to rescue a stranded friend in Denver while I was snug and warm in Nebraska.
I can use it to identify what birds are singing around me, calculator, calendar, reminders, timer, stopwatch, and it works as a computer.
I have one game on it, solitaire, but I'd say most of what I use it for is practical.
Oh yeah, navigation