Garmin isn’t wasting time. Less than a month after launching the Fenix 8 Pro, the company has rolled out System Software 18.51, its second major update since release. And this one goes beyond simple bug squashing.
Garmin Fenix 8 Pro update adds firmware for microLED models

Following up on System Software 18.41, this new version introduces touchscreen firmware v3.05 for microLED-equipped units. That’s a big deal for early adopters who opted for the pricier display option, especially since responsiveness was a top user concern at launch.
Garmin claims the 18.51 rollout has already reached half of all Fenix 8 Pro units in the wild.
Not just patches, Garmin tightens core features
While the previous update mainly tackled LTE bugs, version 18.51 leans into refinement. There are still a few fixes, sure, but the emphasis is now on smoother UI behavior, cleaner call performance, and improved inReach integration.
Here’s what Garmin adjusted in this update:
- Faster pairing bug during setup
- Freezing issue with the NTN pointer animation
- Scrolling problems in the assistance menu
- Crash fix during voice message playback
- Back button behavior is now more consistent
- First-time inReach tips appear correctly after activation
- Auth code screen layout improvements
- Better layout for Messenger call notifications during workouts
- Long chat messages are now properly aligned
- Faster response time during Messenger calls
- Music now auto-pauses when recording voice messages
- New touchscreen firmware (microLED only)
Fenix 8 Pro update stays outside beta testing
Interestingly, Garmin continues to hold the Fenix 8 Pro outside its official Beta Program. There have been no public test builds just direct stable releases. This approach signals confidence in the software stack, but it also means users get no early preview of upcoming features.
Fenix 8 Pro still leads Garmin’s LTE smartwatch push
The latest update strengthens Garmin’s push into connected smartwatches with LTE and inReach baked in. That combo still remains exclusive to the Fenix 8 Pro, separating it from the rest of the Fenix 8 series for now.
For those who dropped $1,199 on this high-end wearable, it’s clear Garmin plans to keep tuning the experience, not just patching issues but smoothing every corner of the interface.
No flashy features here. Just sharper execution where it matters.