Thanks for the replies!

I want to avoid looking at my phone on rides, other than for GPS purposes (IE where am I/if I get l lost). I think I still have my garmin GPS unit (general GPS) from when I was doing bike touring a few years ago, so can always see if I can dig that up for GPS purposes.

Ideally, as I ride, I want to be able to see my HR and my cadence. I remember that those were the two more important things when I first got into cycling many years ago and was training up for my first bike tour. I am not sure what you mean by Earth Induction sensor?

I see this - XOSS Amazon Page - but can't tell what the different 'combos' are actually selling. The information/display doesn't seem to change when I click on them. I assume it comes with a mount, so the one that comes with the two sensors would be best?

I'd obviously want to track my distance, cadence, and HR on a ride. I think I can leave my phone in my pocket on a Strava app to record my actual route too which would show elevation. Mostly flat where I live now, just a killer wind and the mountains are a short ride away so wouldn't be too worried about elevation based stuff until I am back in shape.