Garmin revives Fenix 6 software after an 18-month gap

This is a bit unexpected. Garmin has gone back to the Fenix 6 with a new software update. It is around 18 months since the last one and more than seven years since the watch first appeared!

Garmin fixes the Race Predictor bug

The firmware that goes under the number 29.02 is now available through Garmin’s public beta program. It also covers related watches including the original Enduro, Tactix Delta, Quatix 6 and first-generation MARQ models.

The company describes this as part of “a few late updates” for the platform. The previous Fenix 6 software, version 28.02, arrived back in March 2025.

There is only one fix in the change-log. But the fact Garmin is still working on this generation at all is probably the more interesting part. As far as the fix, it addresses a problem with Race Predictor that has been producing wildly unrealistic estimates for some owners.

Reports started appearing during the summer from users whose predicted race times suddenly improved by huge amounts after recording an activity. One owner saw a roughly 27-minute predicted 5K fall to around 18 minutes. Others reported similarly unlikely jumps despite no corresponding change in their VO2 max.

We have previously looked at how Garmin Race Predictor works. It uses training data and metrics such as VO2 max to estimate potential times for the 5K, 10K, half marathon and marathon.

It is only an estimate, of course. But suddenly shaving several minutes from a 5K prediction without anything changing in your actual fitness is clearly not how it is supposed to work.

Garmin acknowledged the issue during the summer and said in July that its engineers had identified the cause. A fix was initially expected around August, but it has taken until beta 29.02 to appear.

Fenix 6 owners are still using these watches

The Fenix 6 launched in 2019, so it is ancient by normal smartwatch standards. Garmin watches tend to age differently, though. The device on my wrist is a Forerunner 955. Not as old as the Fenix 6 – but I see no reason to upgrade.

Plenty of owners still feel the same about their Fenix 6. They use the device because the core hardware remains perfectly capable. Maps, navigation, PacePro, training metrics, music on some models and long battery life still cover most of what many runners and outdoor users actually need.

Newer Fenix generations obviously bring better displays, newer sensors and more training features. But that does not make the Fenix 6 suddenly useless.

That is why an update like this matters more than its tiny change-log suggests. More than seven years after launch, the Fenix 6 clearly has not been completely forgotten.

Source: Garmin