Both Garmin and Sunnto are both major brands when it comes to watches and its always best to compare the performance of each watch in its price range before you buy. We’ve been partial to Garmin, because they offer sizes that are smaller on the wrist than most of the Sunnto options. We’re not fans of 48mm+ watches! My Garmin Fenix 6x is the 42mm version and it is the perfect size.