Who is this watch for: First of all, this is a men's watch. (pure appearance and weight) If you like to take things "with a margin", so that you have everything at once, the best of the best is your option. If you are a pro athlete, running long trails with the need to load a track in hours is also your option (although depending on the length of the trails, you can look at the X series, but this is not for ultras) In general, I recommend buying
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