Garmin has released software version 21.20 Beta for its flagship outdoor multisport watches on February 3, 2026. This rapid follow-up to version 21.18 suggests a focus on quick turn-around bug fixes.
Supported Devices
- Fenix 8 Series (Pro, AMOLED, Solar, E)
- Enduro 3
- Tactix 8 Series (Solar, AMOLED)
What's New in 21.20 Beta
While Garmin has not provided an exhaustive list of every minor tweak, early reports and the version increment suggest the following improvements:
Stability Improvements
Building on the HRV chart fixes in 21.18, this version likely addresses lingering system stability issues that were reported by the beta community over the weekend.
Sensor Connectivity
Optimizations for sensor connection stability, particularly with external heart rate monitors and power meters, are often included in these rapid iterative updates.
Localization Updates
Updates to translation files and localized text for various regions.
Beta Restrictions
As with previous betas for this generation:
- ECG Feature: Remains disabled.
- Dive Capabilities: Disabled for safety reasons during the beta phase.
Installation
This update is available via Over-The-Air (OTA) delivery. To force a check: Go to Settings > System > Software Update > Check for Updates.