Galaxy Watch Ultra2

About Galaxy Watch Ultra2

The Galaxy Watch Ultra2 is the rugged end of Samsung's smartwatch range. Samsung announced it at Galaxy Unpacked in London on 22 July 2026 and put it on sale on 7 August 2026. It sits above the Galaxy Watch9 and is built for training that runs for hours and for conditions that would trouble an ordinary watch. It comes in one case size only, 47 mm, in titanium. The two changes Samsung leads on are an 800 mAh battery, up from 590 mAh in the first Galaxy Watch Ultra, and a display rated at 5,000 nits so it stays readable in direct sun. Samsung also states a body 12 percent slimmer than the model it replaces, at 10.7 mm.

Where the Watch Ultra2 sits in the Galaxy Watch range

Samsung introduced the Ultra2 alongside the Galaxy Watch9. The Galaxy Watch9 comes in 40 mm and 44 mm aluminium cases with 3,000 nit displays and smaller batteries, and it is the one aimed at everyday wear. The Watch Ultra2 comes in a single 47 mm titanium case with sapphire crystal over the display, and it is the one aimed at people who put a watch through something.

Like the Watch9, it runs the Qualcomm Snapdragon Wear Elite Platform. It is rated IP69K and 10 ATM, and it is the first Galaxy Watch to carry EN13319, the European standard for diving equipment. The gap between the two lines is not small: Samsung's US launch prices put the Ultra2 at a premium of 320 US dollars over the entry Watch9, which is the number to hold in mind while reading the rest of this.

Who this line is for

Three groups may find the larger watch useful. The first is trail runners. Samsung built a Trail Run mode that tracks elevation, climbing progress and the impact of terrain, and adds a Nutrition Alert that prompts for fluid based on an estimate of sweat loss.

The second is divers. The watch records depth, dive time and water temperature, while advanced ascent and descent tracking and safe dive limits were announced for the separate Mares app expected later in 2026. Read the caveat in the next section before buying on this basis.

The third is anyone who wants more battery capacity than the Watch9 offers. That is the plainest case for the Ultra2 over the Watch9, and it does not require you to run or dive at all.

What the larger battery actually changes

The 800 mAh cell is a 35 percent increase on the first Galaxy Watch Ultra, and Samsung fitted it while making the case thinner, which is the part worth noting.

Samsung's US specification table rates battery life at up to 60 hours with the always-on display enabled. This is a manufacturer rating, not a guaranteed interval between charges. Settings, connectivity and exercise tracking affect actual use. Buyers who track sleep should consider when they will charge the watch rather than assuming a fixed number of nights from its capacity alone.

Samsung announced the Mares diving app for the second half of 2026. Its US documentation says additional functions require a subscription. Check release status, regional availability and supported functions before relying on it for diving; hardware certification does not establish that every planned software function is available.

What to weigh against its nearest rivals

Check phone compatibility before comparing this watch with alternatives. Some health features require a compatible Samsung Galaxy phone, an account and the Samsung Health app. A supported Android phone does not necessarily unlock every advertised health feature, and availability can differ by region. Health scores are not a substitute for clinical diagnosis.

Case fit and controls also deserve attention before purchase. Try the watch on with the intended band and consider how you will operate it during exercise. When comparing other sports watches, check the particular model's battery test conditions, phone requirements and price. A brand-wide claim about endurance or value does not establish which individual watch best fits your use.

Who should buy something else

If your exercise is mainly a treadmill session and a step count, consider the Galaxy Watch9 first. Its smaller cases may be easier to wear, and the Ultra2's trail and diving features may not justify the extra cost for your routine.

If you carry an iPhone, choose a watch that supports it. The Ultra2 requires Android, and some functions further depend on a Samsung Galaxy phone.

If you need a week of expedition use between charges, compare tested runtime under the GPS and display settings you will actually use. The Ultra2's stated battery rating should not be read as a promise of week-long operation.

If you have small wrists, try the 47 mm case before buying. Samsung does not list a smaller Ultra2 case.

If advanced diving functions are essential, confirm that the Mares app is released and supports your intended use. Do not buy on the assumption that a feature announced for later in 2026 is already available.

Sizes, colours and availability

The Watch Ultra2 comes in a 47 mm titanium case, in Titanium Silver and Titanium Gray. Samsung states a case weight of 61.5 g and a thickness of 10.7 mm.

Inside are 2 GB of memory and 64 GB of storage, running One UI 9 Watch on Wear OS. Connectivity covers LTE, Bluetooth 6.0, dual band Wi-Fi, NFC and dual frequency L1 and L5 GPS. It requires an Android phone running version 13 or newer with more than 1.5 GB of memory and support for Google Mobile Services.

The US launch price was 699.99 US dollars. Pre-orders opened on 22 July 2026 and general availability began on 7 August 2026. Prices and colour availability vary by market and move over the life of a line, so treat these as the launch position and check Samsung's own store for what is current where you are.