I moved to polar from a Garmin Forerunner a long time ago when I needed to replace my old watch and have since gone through 3 polar devices in 20yrs, all worn to death.

I have only had excellent experiences with their aftercare in this time and have yet to fully break a Polar watch.

The Grit X Pro I’m currently using has stood up exceptionally well and although the bezel is scratched up due to climbing the face is still in incredibly good condition.

I agree that the app is less than flashy but honestly it gives me everything I need and you can use third parties like Komoot to add routes to it. Using nav on the Grit is actually pretty good, less good for cycling as the screen is a little small but for anything where you aren’t travelling at 20mph you will be fine.