Apple Watch Ultra is a line of sport smartwatches produced by Apple Inc. as part of the Apple Watch product line. Introduced in September 2022, they are marketed towards endurance athletes and outdoor recreation, and carry a rugged form factor with a wider band, a larger, brighter display, multi-band GPS, a larger battery, water temperature sensor, and additional functionality for diving. . Hardware. https://en.wikipedia.org/wiki/Apple_Watch_Ultra