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Garmin releases major update for older high-end smartwatches with multiple changes and improvements

System Software 27.18 is the first stable software update for the Fenix 7 Pro in over four months.
ⓘ Garmin
System Software 27.18 is the first stable software update for the Fenix 7 Pro in over four months.
Garmin has finally introduced a major software update for many of its older flagship smartwatches. A stable release, the new update contains over half a dozen changes and improvements, including one to eliminate system shutdowns when using navigation functionality.

In recent weeks, Garmin has delivered multiple beta updates for the Fenix 7 and Fenix 7 Pro (curr. $729 on Amazon). Culminating in the release of Beta Version 27.18 a few days ago, Garmin's 27.xx beta cycle followed the arrival of System Software 26.09 in April. Now, the company has transitioned Beta Version 27.18 to a stable software equivalent.

Specifically, Garmin has issued System Software 27.18 to all Pro and non-Pro smartwatches, including the Enduro 2, Epix 2 and the Marq Gen 2, among others. Moreover, it claims to have already offered the new stable update to around 50% of eligible smartwatches. If that has not occurred in your case yet, then you can request a manual download by navigating through the Main menu to Settings, System, Software Update and then to 'Check for Updates'.

In a series of forum posts, Garmin reports that System Software 27.18 contains eight overarching changes from its predecessor. For instance, the new stable update should resolve a bug that caused device shutdowns on older firmware when using navigation features. Also, Sleep Mode display dimming should work properly again after updating to System Software 27.18. Please see the changelog below and Garmin's forum post for more details.

  • Fixed an issue where no Wi-Fi devices did not have access to music controls.
  • Fixed an issue where the colour scheme would sometimes invert during an activity.
  • Fixed an issue where the device would not permit pairing with the HRM sensor on an open connection.
  • Fixed an issue where the display would revert out of Sleep Mode at the improper time.
  • Fixed an issue where the Find My Phone Feature would sometimes not have sound after completing an activity.
  • Fixed an issue where the Fish Interval timer would not reset after logging a fish.
  • Fixed an issue where using navigation features would cause device shutdowns.
  • Fixed an issue where weather data would sometimes not update.

Source(s)

Garmin (1) (2)

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> Expert reviews and news on laptops, smartphones and tech innovations > News > News Archive > Newsarchive 2026 09 > Garmin releases major update for older high-end smartwatches with multiple changes and improvements
Alex Alderson, 2026-09- 4 (Update: 2026-09- 4)