My Sense 2 seems unable to accurately record distance when there is an incline, resulting in every hike I do being significantly under recorded. I use gps as stide lengths change over incline and I know it's way out as the distance on route guides and various other watches friends have are all aligned. On the flat is seems reasonably accurate, but I mainly use for hills. Is there a fix or do I need to ditch my fitbit? Fitbit seems to think the earth is flat, which is not compatable with my hobby
