I don't have a lot of experience with life expectancy of steel cogs and rings, I've typically always run mid to high end cassettes and rings with the highest quality chain available on my personal bikes. I had a customer with the chain you are speaking of specifically in your first post, the...
Good choice on the steel cassette and chainring but personally I'd run a better chain. The PC1110 is one of the cheapest chains SRAM has available. You may find you get longer life out of SRAM's higher end chains.
Yes unfortunately the Garmin Forerunner 645 is not compatible. I appreciate Mark's efforts though.
I hope @JanCapek can workout the connection with his apps. (if you need a tester I'm around)
@mark.ai Thanks for your work. I'm super interested in testing this app on my Garmin smartwatch, unfortunately you removed compatibility for the Forerunner 645, what seems to be the issue with the 645, I'm willing to test it's compatibility.
Thanks again!