I used a phone mounted on my bars with a QuadLock when I first started cycling. Then moved on to the Wahoo RFLKT, Garmin 500/510 and 810, and have used all of the ELEMNT computers between me and my wife.
The one and only reason I like my v2 Roam is I think it looks significantly better than a phone out front. Everyone else can give you 17 different (better) reasons to use a dedicated bike computer over a phone. My reason for not using a phone…it looks dumb.
When I go bowling, I wear the stupid shoes. I assume the people who’ve bowled millions of hours in stupid shoes know what they’re doing. When I started cycling I wore regular pants, then saw what other people were wearing (and since I chose to be a road cyclist) when they were road cycling so I changed to bibs and lycra shirts with pockets in the back. Figured, again, with millions of hours on the bike in stupid clothes meant other people knew what they were doing. Same with a bike computer.
But, some things you just gotta do for yourself and be fine with it. Use the iPhone contrary opinions be damned. Don’t ask for permission.
I can’t tell you how many times I’ve had older experienced cyclists tell me I wrap my handlebars wrong and that will it will soon unravel (never happened). I like the looks of wrapped handlebars from the tops to the drops (and no ugly black tape on the tops) WAY better so I do that. I grew up playing hockey and skateboarding. I can wrap a stick and grip a board with the best of them, I know how to wrap bars so I’ve never had an issue. After all, it is my bike. If I like an inferior way of wrapping bars (and it works for me) then I do it. I also wear ankle socks…sometimes you can hear audible gasps from other cyclists when you’re doing something as egregious as that, but be yourself even in small ways. I do. And I look dumb doing it…but I do it with confidence and gusto so it’s even funnier to see in real life.
And…it’s YOUR bike. Ride with the iPhone as inferior and dumb looking as that is. Be you.