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Troubleshooting GPS

Make sure GPS recording is set on:

  • M400/M430: On your Polar device, go to Settings > Sport Profiles, choose the sport and set GPS recording on.
  • Ignite/Vantage M/Vantage V: Set GPS recording on in the sport profile settings in the Flow app or web service. Remember to sync the settings to your watch.

Check the expiry date for the current A-GPS data file from your Polar device. Go to SettingsGeneral settings > About your product/About your watch > A-GPS exp. date. If the data file has expired, sync your Polar device with the Flow web service via FlowSync software or with the Flow app to update A-GPS data. For more information on A-GPS (Assisted GPS), see What is A-GPS? How does it work?

To catch the GPS satellite signals, go outdoors and away from tall buildings and trees. Keep your Polar device still with the display facing upwards during the search. Keep it in a horizontal position in front of you and away from your chest. Keep your arm stationary and raised above the level of your chest during the search. Stand still and hold the position until your Polar device has found the satellite signals:

  • M400/M430: The percentage value shown next to the GPS icon indicates when the GPS is ready. When it reaches 100 %, OK is displayed.
  • Ignite/Vantage M/Vantage V: The circle around the GPS icon will turn green when the GPS is ready.

For best GPS performance, wear the Polar device on your wrist with the display facing outwards. Due to the location of the GPS antenna on the Polar device, it is not recommended to wear it with the display on the underside of your wrist. When wearing it on the handlebars of a bike, make sure the display is facing up.

The best GPS signal reception can be reached when training in an open area where there are no obstructions for the satellite signals. Due to the nature of the GPS signal, for example hills, tall buildings, and trees may block the satellite signal. Rain, fog, and snow may also affect the signal quality. These conditions may result in uneven speed reading during the exercise and cause an uneven speed curve in Polar software even when you have exercised going at a steady pace.

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