As the UI/UX Lead, Yi led the redesign of the OXOS device app, enhancing user experience and functionality to better meet the needs of healthcare professionals. Yi also redesigned the device’s viewfinder UI/UX, optimizing clarity and usability within clinical settings. These updates improved the interaction between the main app and the viewfinder, creating a cohesive experience that allows users to navigate and operate both interfaces more efficiently. Collaborating closely with teams in sales, human factors, and software engineering, Yi ensured that the design promotes seamless workflows and elevates device operation to better support user needs.