Overlay speed, altitude, vertical descent, grade, and GPS trail position onto ski footage.
Ski watches record speed, altitude, vertical descent, GPS position, and heart rate. MetricsOverlay reads all of it from the FIT file.
Speed shows real-time km/h or mph from GPS. The grade overlay shows pitch angle as a percentage - useful for showing how steep a run is.
Vertical descent shows cumulative elevation loss, the standard metric for ski volume. Vertical gain is available for touring and backcountry.
Works with Garmin Fenix/Instinct/Enduro, COROS Vertix/PACE, Apple Watch Ultra, Suunto, and others.