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[Firmware ChangeLog]: What's New in 15.12 Beta | Instinct 3 Series

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Overview

Garmin has released Beta Version 15.12 for Instinct 3 AMOLED, Instinct 3 Solar, Instinct E, Instinct 3 Tactical Solar/AMOLED, and Instinct Crossover AMOLED models.

Garmin lists this beta at 20% OTA rollout. The changelog includes improvements for hike gear suggestions, treadmill calibration, morning report display, Power Manager, DogTrack, Connect IQ data fields, and watch face data fields.

Update Details

  • Devices: Instinct 3 AMOLED, Instinct 3 Solar, Instinct E, Instinct 3 Tactical, Instinct Crossover AMOLED
  • Software Version: 15.12 Beta
  • Announcement Date: July 8, 2026
  • Channel: Public Beta Program
  • Rollout Status: 20% OTA rollout
  • Official Announcement: Garmin Forums

Garmin Instinct 3 Series 15.12 Beta Changelog

All Instinct 3 / Instinct E Models

  • Improved gear suggestions for Hike activities.
  • Fixed a potential issue with treadmill distance calibration.

AMOLED Models

  • Fixed an issue where the date could display incorrectly on the watch face in some languages on Tactical models.
  • Fixed a potential issue where sleep data would not display correctly in morning report in some languages.

AMOLED and Solar Models

  • Added support for Xero range sensor data in the Applied Ballistics app on Tactical models.

Solar Models

  • Fixed the Auto Select Satellites option missing from Power Manager.

Solar and Instinct E Models

  • Fixed dog pointer direction in DogTrack glance.
  • Fixed an issue where a Connect IQ data field was obscured.
  • Fixed an issue where a watch face data field could be blank in some languages.

Why This Update Matters

Better Outdoor and Tactical Utility

Hike gear suggestions, Applied Ballistics Xero range sensor support, DogTrack direction, and satellite Power Manager behavior all fit the Instinct line's outdoor focus.

Daily Use Polish

The morning report, watch face date, and watch face data field fixes address the parts of the watch users see every day. These are not headline features, but they affect trust in the watch's displayed information.

Important Notes

This is beta software. Only devices enrolled in Garmin's Public Beta Program should receive it, and users should report beta issues through Garmin's beta forums.

Conclusion

Garmin Instinct 3 Series Beta 15.12 is a broad beta maintenance update. It improves outdoor workflows, fixes several display issues, and adds tactical sensor support for compatible models.