I bought the vivoactive 3 last week to replace another garmin that broke. I have to say I am unimpressed.
All of the runs I have been on so far have shown no elevation gain (Im in a flat location but not that flat). I have once uploaded adjusted the elevation using garmin connect and strava. Both have come up with completely different results. For todays run GC has 50ft gain and strava 130ft.
Also, the GPS tracking is poor. I have done 2 10k runs and each has come in .2 of a mile short. I have autopaused a few times at crossings etc but it shouldnt lose that much. My forerunner didnt on similar routes. I did one run with gps and glonass and that was worse.
Anyone else had the same issues? or found a fix?