Fitbit Versa 3 review: GPS sports watch and ultimate health tracker for $230 | ZDNET
Fitbit OS 5.3: Two new features for the Versa 3 and Sense! - YouTube
Smartwatch | Fitbit Versa 4
Announcing Fitbit OS SDK 5.0
Fitbit OS 5.2.1 update for Versa 3 & Sense provides little-to-no bugfixes
Fitbit's OS for the Sense and Versa 3 won't come to earlier smartwatches | Engadget
Announcing Fitbit OS SDK 5.0
Amazon.com: Fitbit Versa 3 Health & Fitness Smartwatch with GPS, 24/7 Heart Rate, Alexa Built-in, 6+ Days Battery, Pink/Gold, One Size (S & L Bands Included) : Sports & Outdoors
Fitbit Versa 4 & Sense 2 will have a Wear OS-inspired UI
Fitbit Sense and Fitbit Versa 3 receive quality of life improvements with Fitbit OS 5.3 - NotebookCheck.net News
The Latest Fitbit OS Update Delivers Even More Health and Convenient Features to Smartwatches - Fitbit Blog
Fitbit OS 5.1 update brings Google Assistant support to the Fitbit Versa 3 & Sense - Gizmochina