The garmin fenix 3 sapphire hr watch is a stylish technical watch that is ideal for the outdoors statistician the fenix 3 sapphire hr closely monitors performance to garner comprehensive information including fields such as running dynamics stride length and vertical ratio as well as offering recovery advicefeaturing the stainless steel exo antenna the fenix sapphire hr watch has a fully functioning navigational facility that receives both gps and glonass signals to provide highly accurat