Garmin has released a comprehensive beta update for its aging high end smartwatches that fixes the long standing heart rate misreadings that affected users during daily activities.

The update addresses HRV tracking stability and improves consistency during workouts by recalibrating sensor fusion and smoothing out erroneous spikes that previously caused confusion in health metrics.

Users will notice that heart rate now reflects steady readings during intervals and jogging while the watch responds more reliably to sudden pace changes.

Garmin also introduces a broad set of improvements including performance optimizations battery life enhancements and interface tweaks that collectively improve the long term usability of older models.

The beta release fixes cases where the device briefly paused heart rate monitoring during screen transitions or activity starts.

Early testers reported fewer false alarms and clearer consistency between wrist based readings and external sensors after the update.

Garmin confirms that the update will remain available for select devices in beta before a broader rollout and advises users in compatible regions to install the release through official channels.