Live segments you have created or starred on Strava can automatically sync to your Suunto device.
Requirements
Suunto 9 Peak, Peak Pro, Suunto Vertical, and Baro watches
Unfortunately, the Suunto 5 Peak, Suunto 3, and Suunto 7 watches will not be compatible.
Connecting Your Accounts
Navigate to your Suunto app's settings.
On Android, select Settings > Account > Connect to other services.
On iOS, select Profile > Connect to other services.
Connect to Strava. You will be prompted to log in to your Strava account or create one if you do not have one.
Accept that the Suunto app can connect to your Strava account.
After syncing your next workout with the Suunto app, it will be automatically transferred to Strava.
You can learn more about Suunto and Strava here.
Turning on Live Segments From the Suunto App
Once your Strava account is connected to your Suunto device, you can open the Suunto app to turn on live segments.
Tap the watch icon at the top right of the screen, then select My SuuntoPlus Guides.
Toggle on Strava Segments for both ride and run activities.
If your segments are not being displayed in Suunto, make sure they are starred in Strava, and check your watch's syncing status in the Suunto app to ensure it is not syncing.
Please note that only 20 segments can be synced to the Suunto 9 Peak Pro at a time and only 5 segments for all other compatible devices. To remove a segment, you will need to remove the star from it on your Strava account.
Enabling Live Segments Before Starting an Activity
Tap the watch icon on the top right of the screen.
Select exercise sport type > options > SuuntoPlus Guides.
Select either run or ride segments based on the sport type, then start the exercise.
Live Segments During an Activity
After selecting the activity type and segment guide, press the start button to begin the activity. You can switch to the Live Segments screen, which shows the nearest starred segments to your current location. Your Suunto watch will not automatically switch to the live segment screen.
To track your time, pace, and distance on the segment, you have to manually switch to the live segment screen. At the end of the segment, you will see your preliminary finish time. Pressing lap or having auto lap on during a segment will cause the end segment time to be displayed incorrectly.
Your Suunto device will alert you as you approach your segment and again when you start it. If you go off course, your Suunto device will send you an alert and end your segment effort. The segment notification does not specify which segment is nearby or in what direction you need to go to find it. Additionally, you cannot switch between nearby or currently running segments.