I have a fenix 5 and just bought and in-reach. The fenix 5 used with the explore app is outstanding but wanted the distress ability of the inreach. The distance on two occasions on the fenix 5 is 26m and the in-reach is 28 km when I am carrying both., I believe the fenix 5 to be accurate. How can that be, also on one walk the time was not the same yet same start time