I have been a long time Garmin Supporter. Owned 4 different Garmin's over the years. The latest 2 were the Vivoactive 3 and now the 4. I after multiple replacements and problems I have decided now to change my support. My wife have been using a Samsung and she never had so much problems. My 3 has been replaced 3 times before incorrect stairs i,e, 5000 plus on a flat service. the 3rd the battery dies after 3 months. Due to the replacement it was then out of warranty. No I have the same issues with the 4. first one could not connect to the satellites i.e. routes were 200km off course etc. 2nd one did not work at all. Now the 3rd also now out of warranty battery flat after 8 hours. Disable about everything., but still no luck. Also outside takes about an hour to find a satellite and then looses it halfway through my run. .