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T-Rex 3 Pro navigation completely broken when waypoints are set

Device Support ⌚️

Hello,

I want to share some photos with the same route in my Garmin Fenix 8 and my Amazfit T-Rex 3 Pro.

There's a critical bug with the navigation that makes it unusable when waypoints are set and/or you repeat parts of the track.

As you can see the Garmin Fenix 8 notifies perfectly not only the left and right turns, but the U turns and the forks. The T-Rex 3 Pro is a completely disaster and unusable.

U-turn Fenix 8 and T-Rex 3 Pro

Left fork Fenix 8 and T-Rex 3 Pro

Left turn Fenix 8 and T-Rex 3 Pro

Right turn Fenix 8 and T-Rex 3 Pro

It was also very well detailed here. Now tested with a Fenix 8 side by side:

https://www.reddit.com/r/amazfit/comments/1ngre1k/comment/nrjo5f5/

Also here:

https://www.reddit.com/r/amazfit/comments/1oqpk6o/balance_2_balance_2_xt_worst_turnbyturn_i_have/

And here by u/slimak131 :

https://www.reddit.com/r/amazfit/comments/1mo7qa8/serious_turnbyturn_navigation_bug_in_amazfit/

https://www.reddit.com/r/amazfit/comments/1nbkbvi/zepp_9121_whats_the_point_of_adding_the_option/

u/Amazfit-Bryce can you report this? I have also uploaded the data in Zepp.

Stopping to take these photos, meant to break my training, but I though it was worth the effort. I hope you can solve it.

Posted Dec 14, 2025, 9:55 PM UTC · edited

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