Not up to its promises

1 - Actual battery life is far from corresponding to that announced: GPS use, instead of 5 am, there is 2h30 to 3 hours of operating time with a watch from fully charged. I sent the watch to Garmin for that reason. I have been deprived for 1 month. On his return, the performances were hardly changed.
2 - The watch features an "Auto Pause" mode if one stops its movement, it will pause mode and is supposed to resume recording the changes as soon as one starts again or race. Mine restarts sometimes, but not every time. So at the end of the hike, we are left with incomplete data.