Garmin’s recent update introduced the heart rate dynamic source switching tool to many of its smartwatches. The intention behind this new feature is to enhance the accuracy of heart rate monitoring, especially during exercise, by enabling the watch to switch between different heart rate data sources. This might include data from both the smartwatch and a connected Garmin heart rate monitor strap.
The feature, offering a more seamless exercise tracking experience, made its debut in stable firmware updates, including Forerunner 965 (v19.18) and the Fenix 7 (v17.20), with a complete list of eligible smartwatches available from Garmin’s official resources.
Despite the initial excitement, some users have experienced problems with the new feature. Discussion on relevant community forums suggests that a subset of users, particularly those with models like the Fenix 7 and Forerunner 955, have reported the feature triggering rapid battery drain and inconsistency in heart rate data during the first 20 minutes of exercise. Users have noticed erratic readings and occasional high spikes in heart rate data, something which might be attributable to issues like a poor connection between skin and sensor at the start of a workout, a point at which users usually aren’t sweating yet.
While Garmin has acknowledged the potential for inaccuracies in heart rate data early in a workout due to connectivity issues, the experiences shared by users imply that this problem might be exacerbated by the new dynamic source switching feature.
For those who are less than satisfied with the performance of this feature, there is the option to disable it. This option became available in beta firmware versions, such as v19.13 for the Forerunner 955, with Garmin providing instructions on how to turn off the dynamic heart rate source tool.
If you’re facing similar issues following the rollout of the new heart rate feature, here’s what you can do to disable it:
1. Navigate to the settings menu on your Garmin smartwatch.
2. Go to ‘Heart Rate Features’.
3. Look for the ‘Heart Rate Dynamic Source Switching’ option.
4. Toggle the feature off.
It’s crucial for users to monitor these updates and actively share feedback to help manufacturers like Garmin refine their features for better performance and user experience. If you’re encountering issues, reaching out to Garmin’s customer support or participating in community forums can also provide additional solutions and workarounds. Meanwhile, Garmin is likely to continue improving this tool, so keeping your device’s firmware up-to-date is advisable.
Engaging with these technologies by understanding how they function and how to tweak settings can significantly enhance the user experience of Garmin smartwatch owners, ensuring better exercise tracking and longer battery life. With the rapid pace of technological changes, staying informed and adaptive is key to getting the most out of your wearable tech.






