It takes a long time to acquire location information from GPS.
A8
The initial GPS location information acquisition operation after you were indoors or after you had the watch turned off for a long time may take 10 minutes or more to complete.
Subsequent location information acquisition will be quicker.
For the initial positioning operation, start up the GPS using app in an area with a clear view of the sky, and keep the watch still until the positioning operation is complete.
This will make positioning easier. Vigorous movement will cause the positioning operation to take longer.