Developer Blog
Announcing Fitbit OS SDK 4.0
Oct 29th, 2019
This update for the Fitbit OS SDK adds support for Versa 2 devices, provides developers with advanced cryptographic functionality, multi-view SVG, App Cluster Storage API, and much more! Read more
Announcing Fitbit OS SDK 3.1
Mar 18th, 2019
We're proud to announce the latest version of the software development kit for Fitbit OS. SDK 3.1 adds support for the new Fitbit Versa Lite, and the ability to localize your apps and clock faces with our new i18n API. Read more
Our SDK Deprecation Process
Feb 22nd, 2019
We have decided to document our deprecation strategy so that developers can plan their app updates accordingly, as older SDK versions are removed from Fitbit Studio and our Command Line SDK. Read more
It’s Time To Exercise With Fitbit OS 3.0
Dec 17th, 2018
This update for Fitbit Ionic and Versa smartwatches will allow developers to easily create custom exercise applications, perform faster on-device calculations, launch other applications, upload files from the device to companion, and experience super fast side-loading with partial installs and compressed bundles. Read more
Announcing Fitbit OS 2.2 - The Versioning!
Oct 5th, 2018
The latest firmware update for the Fitbit Ionic and Versa smartwatches continues the evolution of Fitbit OS, and provides some great new developer functionality. Read more
