https://wccftech.com/one-ui-watch-is-samsungs-new-os-for-smartwatches/

Earlier this year, at the Google I/O, the company announced that they would work with Samsung on a new platform for smartwatches. While at that time, Google did not share many details about the new platform, it has finally revealed today at MWC 2021 that it will combine the best features from Wear OS and Tizen. Samsung has finally shown off One UI Watch. This is a new interface for Galaxy smartwatches, and Samsung aims to provide a consistent experience and look with other Galaxy devices in the ecosystem.

During the announcement, Samsung has decided to unveil the One UI Watch, and it will make its debut on a new Galaxy Watch "later this summer." At the same time, Samsung did not reveal any details about the smartwatch; the company did release some software capabilities that we can expect.