My Fenix 5S GPS altimeter and barometer is malfunctioning

Former Member
Former Member

I love this functionality of my Fenix 5. but the GPS has been failing me epically multiple times. Often the issue is worse when I was hiking with poles while my cell phone malles the most beautiful Tracks. No changing to gps glonass helped. But at least gps works better when running with no poles  

the swimming lane counter is awesome to use but it regularly counts faster than I actually swim (gives me 2x speed at times), adds about 20%! In 50m pool or 25 m pool. 

Since this is my first Garmin I don’t know whether that failure is normal. Did not have that with my simple cheap vanilla Fitbit charge.  I just saw that all these failures can be a bug for Fenix 5. How can i get a replacement?