920XT Firmware Updated Again – Significantly this time (Fenix 3, Epix same)

As expected there is a significant update to the 920XT firmware to support the retrieval of cached HR data – as well as other more minor things too, as shown below.

The cached swim data retrieval fills a big hole that previously existed in the functionality behind Garmin’s triathlon offering.

The HRM product is expected to be available this quarter.

The caching retrieval is most unlikely to work with other similar caching HRM products such as 4iiii Viiiiva and Wahoo TICKR-X

A whole number change in software should relate to a significant upgrade in functionality ie from 4.X to 5.X

 

 

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Changes made from version 4.20 to 5.20:

 

• Added HRM-Tri and HRM-Swim support.
• Added Connect IQ 1.1.3 SDK support.
• Added tone-only and vibration-only options to the alarm.
• Added a shortcut for changing the pool size to the shortcuts menu in a pool swim activity.
• Fixed a crash that could occur when uploading an activity to a paired smartphone over Bluetooth

 

Last Updated on 14 January 2026 by the5krunner