Same - quadlock and iphone.
I use Cyclemeter, and it transmits HR from my apple watch to my phone. You can customize the screens to display all types of metrics. And then upload to Strava. I do put the "poncho" on the case when rain is a threat, keeps the raindrops from "pushing buttons".
I also have a wahoo cadence sensor that transmits to my phone.
In short, everything I need is on my screen - speed, avg speed, cadence, avg cadence, distance, hr and cals. I've got a couple other custom screens set up with maps, gradient, speed, etc...
This is just one way of doing it. You could also go Wahoo complete - fenix, bolt, cadence, tickr (this is what my brother in law does).
The answer to this is Cyclemeter https://cyclemeter.com/
I use my phone, Apple Watch and wahoo sensors The phone is the computer, the watch uploads real-time heart rate and the sensors connect to the phone for a seamless upload to strava. Also if you have issues with two different files, you can use gotoes gpx or fit file combiner to splice and dice and recompose.
https://gotoes.org/strava/Combine_GPX_TCX_FIT_Files.php
The price is 10 Cad per year and I felt it was totally worth it.
https://cyclemeter.com/b90e76f44e8f9eee/Cycle-20210523-0618-27042
From South Pointe Park to Surfside is about eight miles. At surfside the concrete path ends and becomes hard pack sand for the rest of the ride to Bal Harbour inlet.
As you can see in this ride I skipped the sand part and went into the city for a Starbucks stop. Heh.
Awesome! Shaping up to be a supreme weekend. Hopefully plenty of people will chime in with some of their favorite spots in this neck of the woods, but when you said between Manistee and TC, I automatically think of the Arcadia G&G course - dirt roads with some great singletrack mixed in there. Have fun!