I have the Garmin fenix 6 and the wife has the Suunto 9. So I have experience seeing both. The wife had the Garmin first hated it and gave it to me and I love it. I track my workouts, hunting/hiking and running with it. I also use the gps to mark spots on short trips. It’s tough to see on the screen but linked with the phone the map is easy on the eyes. 
It was to much for the wife and she hated it wasn’t a touchscreen.
The Suunto fits her workout schedule. Tracks her cardio, biking and running.