Samsung has announced that its Galaxy Watch Ultra now receives One UI 8 Watch, which means that Galaxy Watch Ultra users now have access to new health tools designed to support daily wellness, including Running Coach, Vascular Load, and Antioxidant Index.
The new interface on One UI 8 Watch has been made to give important information swiftly on the watch’s small screen. One can customize Multi-Info Tiles, which have health data, weather, and other metrics. The Now Bar, first introduced in One UI 7, keeps current actions and tasks always within reach.
Samsung says the update brings more tools to improve sleep, heart health, fitness, and nutrition. The Galaxy Watch Ultra now features Bedtime Guidance, which provides personalized sleep times based on recent sleep trends, and the ability to measure vascular load during rest, allowing the watch to track the stress placed on the heart during sleep. These features, even though they are visible on the Samsung Health app for users of older watch models, can only be used by Watch8 users.
It also comes with a Running Coach. The watch will analyze a 12-minute run to set a level and then give a training plan for goals like a marathon or a new distance. The Antioxidant Index measures the levels of skin carotenoids in seconds. It provides feedback on lifestyle choices that can help with healthy aging.
Samsung says these updates are aimed at giving a more complete health experience, using instant feedback to help guide users’ choices.
The Samsung Galaxy Watch8 was officially unveiled on July 9, 2025, at the Galaxy Unpacked event along with all-new Galaxy Z Fold7, Galaxy Z Flip7, and Galaxy Z Flip7 FE. This series consists of 3 different watches: the Watch8, Watch8 Classic (the one with rotating bezel), and Watch Ultra (2025).
Source: Samsung