Fitbit Enhances Smartwatch Experience with OS Update, Debuts Best Heart Rate Tracking Yet for Versa 2, and Delivers Expanded Premium Features | Business Wire
How to update Fitbit: Step-by-step guide - Wareable
Get Ready: Updates to Fitbit Versa 3 and Sense Include Google Assistant, On-Wrist Calls, New SpO2 Clock Faces, and More - Fitbit Blog