Autonomy is bluffing. I used it several times on hikes of 6-8 hours, and autonomy (16H at the base) are still 10-12h at the end despite the activated GPS. Customization of screens is nice and convenient. The PC connection is good also (by the software against a little limited, but export is top on Google Earth). Two caveats for the moment: - The battery in the chest belt lasted only fifteen jogging - The altimeter (GPS) does not seem accurate at all. On identical jogging the elevation change much from one session to the other
