Summary
- Choose a watch that uses the Airoha chipset - Forerunner 255, fēnix 7, epix (Gen 2), fēnix 8, Instinct 3, etc.
 - Set it up properly - “every second” logging and suitable satellite systems.
 - Link your Garmin Connect account to websites such as GPS-Speedsurfing, Hoolan, Waterspeed, etc.
 - Use a suitable app (e.g. APPro) to ensure the correct GNSS settings and suitable sport profile are used.
 - Ensure your watch has a clear view of the sky for as much of the time as possible, especially during speed runs.
 - Try out the applications GpsarPro, GPSResults, and GPS Speedreader for more insights into your performance.
 

