Wearable tech giant Garmin is facing mounting backlash as a major software glitch disrupts core functionality on its latest fitness tracker.

The issue, emerging shortly after a recent firmware rollout for the CIRQA band, has rendered one of the device's signature features practically unusable. Disgruntled consumers have flooded support forums, reporting erratic data tracking and sudden device crashes.

Tech analysts now advise users to postpone pending updates until Garmin releases an official patch to stabilize the system.