I agree that Garmin watches are not good general purpose smart watches for most people, but their UX is actually perfect for their intended users. Once you develop the muscle memory, it's possible to perform many functions without being able to see the screen. This is necessary when it's cold and layers are covering the screen. I have cold weather running shirts which have sleeves that mostly cover your hands, and can press the buttons on my Fenix 6 easily through the fabric and do whatever I need to do without stopping to pull my sleeve up (which is awkward since those shirts have thumb holes).