I used to wear AW until I got the Garmin Forerunner. One annoying thing about the new 965 is that the HR monitor is getting inaccurate for faster paces. When I have my recovery runs with HR below 150, the watch works perfectly fine. Once my HR goes over 165, it's a wild guess. I fee like I need to stop running and let the Forerunner"catches" up with its accuracy then it is working OK again. Happens in every intensive run.