For the Fitbit Versa 4, there are no official SDK updates from Fitbit that support third-party app development. The Versa 4 and Sense 2 do not currently support third-party apps through the Fitbit App Gallery, which was a feature available on previous models like the Versa 3[7][9]. However, some developers have been experimenting with unofficial methods to sideload apps using APIs, but these methods are not officially supported by Fitbit.
Unofficial Development Efforts
Some developers have been working on unofficial SDKs and tools to enable app development for the Versa 4 and Sense 2. For example, there are GitHub repositories providing unofficial guides and tools for SDK development on these devices[4]. These efforts often require setting up a specific development environment, such as using Node.js version 14, which is compatible with the Fitbit SDK[1].
Official SDK Status
As of the latest updates, Fitbit has not announced an official SDK for the Versa 4 and Sense 2. The lack of official support means that developers cannot distribute their apps through the Fitbit App Gallery, and users cannot install third-party apps directly on these devices[9].
Development Environment Setup
To work with unofficial SDKs, developers typically need to set up a development environment that includes Node.js and the Fitbit SDK CLI. For instance, using Node.js version 14 is recommended, as newer versions may cause compatibility issues with the SDK[1]. Additionally, developers might need to use tools like `nvm` to manage Node.js versions on their systems.
Conclusion
While there are no official SDK updates for the Versa 4, unofficial efforts continue to explore ways to develop and sideload apps. However, these methods are not supported by Fitbit and may not be stable or widely compatible. Users and developers alike await official support from Fitbit to fully utilize the potential of these devices.
Citations:[1] https://www.reddit.com/r/fitbit/comments/151cx3p/versa_4sense_2_sideloading_via_api_anyone_done_it/
[2] https://docs.versa-networks.com/Getting_Started/Deployment_and_Initial_Configuration/Branch_Deployment/Branch_Basics/Hardware_and_Software_Requirements_for_Branch
[3] https://www.teledynevisionsolutions.com/support/support-center/technical-guidance/iis/spinnaker-sdk-release-notes/
[4] https://github.com/yeohongred/fitbit-versa4-sense2-sdk
[5] https://docs.versa-networks.com/Getting_Started/Deployment_and_Initial_Configuration/Headend_Deployment/Headend_Basics/Hardware_and_Software_Requirements_for_Headend
[6] https://www.manageengine.com/products/service-desk/on-premises/readme.html
[7] https://www.reddit.com/r/fitbit/comments/xnoog9/psa_the_new_sense_2_versa_4_do_not_support/
[8] https://community.fitbit.com/t5/Versa-4/Versa-4-Firmware-Update-194-86/td-p/5498705
[9] https://community.fitbit.com/t5/SDK-Development/Versa-4-and-Sense-2-SDK-Status/td-p/5341810