There are two ways to use the goggles in open water. 

The first way is to use the built-in open water mode on the goggles, and the second is to pair the goggles with a compatible Apple Watch or Garmin smartwatch. 

To see which metrics are available in each mode, see here: What metrics can I see while swimming?

If you have Premium, you would also have the option to turn on SwimStraight™ at the beginning of your open water swim. You can find out more here: Premium Feature: SwimStraight™

Goggles' open water swim mode 

When turning on the goggles, select Open Water then Track On Goggles. You can then press the front button to start the swim. Pausing the swim will give you access to drills mode, saving & quitting or discarding & quitting the swim. You would see one dashboard throughout the swim (unlike pool swimming, which has swim, turn and rest dashboards) and up to three bottom metrics cycling.

With an Apple Watch

Find out about pairing your Apple Watch to your goggles.

You can see more about starting a swim with an Apple Watch here.

With a Garmin smartwatch

Find out about pairing your Garmin smartwatch to your goggles. 

You can see more about starting a swim with a Garmin watch here.