The Apple Watch Ultra.
While the Apple Watch Ultra comes in a huge 49mm case, it is compatible with Apple Watch bands designed for the 42mm, 44mm and 45mm models.
In a note on its website, Apple shared that "the 45mm straps work with 42mm, 44mm and 49mm cases." However, the 41mm bands only work with 38mm and 40mm cases. The only exception seems to apply for the Solo Loop and Braided Solo Loop; Apple says they are only compatible with Apple Watch SE and Apple Watch Series 4 or newer.
Prior to the announcement of the Apple Watch Ultra, a tipster claimed that the rugged model might not be compatible with existing watch bands due to its bigger case design. Check out our hands-on article of the Apple Watch Ultra to see how it looks in real life and on the wrist.
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