Try b riefly changing the setting for Apple Watch Workout to Never and then back to While Using.Try briefly turning off Location Services and then turning it back on again.At the bottom of the apps list, tap on System Services > check that Motion Calibration & Distance is turned on, along with other desired system services.In the list of apps beneath, check that Apple Watch Workout - along with any third-party apps that support the feature - is set to While Using.Check that Location Services (the main setting at the top) is turned on.On your iPhone, go to: Settings > Privacy > Location Services.It may also help to check your Location Services settings: This information is used to help estimate distance during later workouts when GPS data is limited or unavailable (and during general daily wear).įor the best results, be sure to allow the arm on which you are wearing your Apple Watch to swing naturally during your workouts (when GPS may be limited or unavailable) as well as during calibration workouts. It does this by comparing data from the accelerometer with GPS / Location Services data.

However, it may help to recalibrate your Apple Watch, resetting your existing calibration data and starting afresh by recording some Outdoor Walk workouts in areas with flat ground, clear skies and good GPS reception (this process can be equally helpful for Series 3 models as for Series 1 and earlier):Ĭalibrating your Apple Watch for improved Workout and Activity accuracy - Apple SupportĬalibration teaches your Apple Watch how your arm movements relate to your stride lengths at different speeds when you are walking and/or running. It is not possible to calibrate the GPS on your Apple Watch.

Apple watch series 3 gps running