All smart watches and sports bands equipped with GPS receivers such as Fitbit Versa 2 can be used as a GPS tracker. It doesn't matter how you connect to the internet - direct (eSIM) or indirect via a smartphone. In both cases, you can track your wearable device online in real time. More information is available on this GPS tracking platform for smartwatches.
If you want to track your activity during training, you need a device that can communicate. More information about wireless communication in activity trackers can be found in our article.