Samsung is preparing its next Galaxy Watch Ultra with the kind of battery improvement that owners have long requested. The Galaxy Watch Ultra 2 is set to arrive in the near future, and recent information points to a notably larger power source than the versions released in 2024 and 2025.

SamMobile indicates the Galaxy Watch Ultra 2 will feature a battery rated at 784mAh. The company may list this as an 800mAh typical rating, representing roughly a 35 percent step up from the 590mAh cell found in today’s Galaxy Watch Ultra lineup.

Larger cell could extend runtime toward three full days

Current Galaxy Watch Ultra units are rated for up to two days of use when GPS training features are active. Should the new battery size prove accurate, the Watch Ultra 2 stands a good chance of approaching three days of everyday operation, though results will vary with screen brightness, exercise tracking, cellular connectivity, and continuous health sensors.

Beyond the cell itself, efficiency gains may come from hardware changes. Reports suggest the watch will adopt Qualcomm’s Snapdragon Wear Elite processor in place of Samsung’s Exynos W1000, potentially stretching battery performance even further.

5G connectivity may offset some endurance benefits

Additional leaks mention 5G support arriving on the Galaxy Watch Ultra 2, with early availability likely limited to regions such as the United States and South Korea. While this addition would improve standalone performance, it could also increase power draw. It remains to be seen how Samsung will balance the extra capacity against 5G demands once the device is official. The software platform is expected to be Wear OS 7, which Google introduced at its I/O 2026 event.

The Galaxy Watch Ultra 2 is anticipated to launch together with Samsung’s next foldable phones, currently rumored for a July 2026 debut. This timeline means answers about the claimed battery upgrade should arrive before long.