Is the Ultra 2 worth it over a regular Apple Watch?

If you hike, dive or run long distances, the brighter screen, bigger battery, titanium build and Action button justify it. For everyday use, a Series 9 does most of the same things in a lighter case.

How long does the battery last?

Apple rates about 36 hours of normal use and up to 72 hours in low-power mode. Heavy GPS workouts drain it faster, so plan on charging most days.

Does it work with Android phones?

No. The Ultra 2 needs an iPhone to set up and use, including cellular service.

Can I swim and dive with it?

Yes. It is water resistant to 100m and has a depth gauge rated to 40m for recreational diving, though full dive features run through the Oceanic+ app.

The watch, a band and a magnetic fast-charging USB-C cable. A power adapter is not included.

Is it too big for small wrists?

The 49mm case is the largest Apple makes. Try one on if you can; many owners with slim wrists still wear it, but some find it heavy for sleep tracking.