A post from Amazfit’s Zepp OS X account has sparked rumors that the development of Zepp OS 4.0 has begun. The post, which has since been deleted, showed an AI-generated image of the Eiffel Tower with the number four in clouds in the background, which fans believe points to the new operating system. However, it is unclear where the Parisian landmark fits in; it could be a red herring.

Accompanying the image was the wording, “Something amazing is coming to Zepp OS! Can you guess what it is? We are now starting to plan! Please give us your thoughts!”. Amazfit quickly removed the post and has not commented further on Zepp OS 4.0. The last official update from the brand can be found in its Slack community, where, in response to a developer's question on May 26th, a team member statedthat the OS 4 core development had not yet begun.

It is still unclear whether or not the company has since started work on Zepp OS 4.0 or when it could launch. Amazfit has been rolling out its latest software, Zepp OS 3.5, to wearables such as the Active, Balance, Cheetah Pro, Cheetah (Round/Square), T-Rex Ultra and Falcon. Whether Zepp OS 4.0 will also reach all these wearables remains to be seen.