There aren’t many differences between the different watch models when it comes to location tracking. The only real differences are the satellite systems and compass. For instance, the Apple Watch 7 uses an additional satellite navigation system called BeiDou. This is in addition to the satellite systems on Series 3 and SE: GPS, GLONASS, Galileo, and QZSS. In addition, a compass feature is available on Apple Watch SE as well as Series 5 and later. This app can access limited location features even when Wi-Fi or cellular connectivity is unavailable.