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* The display on the Fenix 2 is a little harder to read than most other watches. The backlight compounds the problem as it is a dull red glow.
=GPS Accuracy Issues=
The Fenix 2 has some well-known [[GPS Accuracy ]] issues that are mostly shared with the [[Garmin 620]], which use the MediaTek GPS chipset. I've seen three types of problem with the Fenix 2.:
# Generally mediocre performance, though this obviously varies. Occasionally the Fenix 2 will be quite good, as you'd expect from a random level of error.
# The Fenix 2 records the right shape track, but offset by some distance. This does not look like a typical accuracy problem that would manifest itself randomly.
# Occasionally the Fenix 2 will report "lost satellite reception", which may well be a problem with the clock on the Fenix 2.
==Is It Just Some Watches?==
Some people are quite happy with the accuracy of their Fenix 2 or [[Garmin 620]], prompting speculation that this is a quality control issue and the problems only effect some devices. I don't believe this is the case for a number of reasons.
# I've tested 5 devices (2x Fenix 2,3x 620) that exhibit the problem. It seems remarkably unlikely that 5 out of 5 devices would have the problem. The problems with these devices seem remarkably similar, though only the Fenix 2 has the catastrophic 'lost satellite reception' problem.