GPS is what Garmin does best. Not only do Garmin watches give you access to satellite maps out of cell phone signal, you also have the ability to download GPX maps directly from the computer program Garmin BaseCamp (or make your own routes). I had the opportunity to follow a clear and direct trail wearing the Fenix 6 (with a preloaded GPX map) and two different Apple Watch 6s, and not only did the Fenix accurately track pace and mileage, the two Series 6 watches were different from both the Fenix and from one another.