Does the Galaxy Watch Ultra work with non-Samsung Android phones?

Yes, it pairs with most Android phones running a recent version of Android. Some Samsung Health and ecosystem features, such as ECG and certain health insights, work fully only with a Galaxy phone.

How long does the battery last?

Samsung rates it for multiple days of typical use, and reviewers generally get two to four days depending on GPS, always-on display and workout use. Heavy GPS use shortens that considerably.

Is it good for swimming and diving?

It is water resistant to 100m and rated IP68, so it suits pool and open-water swimming. Samsung does not position it as a dive computer, so it is not a substitute for dedicated dive gear.

How does it compare with the Apple Watch Ultra?

Both are large titanium adventure watches with multi-day batteries and dual-band GPS. The Galaxy Watch Ultra is the better fit for Android and Samsung users, while the Apple Watch Ultra is limited to iPhone and has deeper app integration there.

Can I use it without a Samsung phone?

You can set it up and use core features like notifications, workouts and GPS with other Android phones. Samsung-specific health tools and some watch faces need a Galaxy phone.