Samsung’s upcoming Galaxy Watch Ultra may finally deliver the battery boost many users have been hoping for. The Galaxy Watch Ultra 2 is slated to appear in the next few weeks, and a fresh leak suggests it could be equipped with a considerably bigger battery than the 2024 and 2025 versions.
SamMobile indicates the Ultra 2 will house a battery rated at 784 mAh. Samsung might promote this as an 800 mAh typical capacity, roughly 35 % larger than the 590 mAh cell found in today’s Galaxy Watch Ultra models.
A larger battery could push the Ultra’s endurance close to three days. Samsung currently advertises up to two days of life on the Ultra when using power‑hungry features like GPS training mode. If the reported capacity holds true, the Watch Ultra 2 could approach three days of normal usage, depending on screen settings, workout tracking, cellular activity, and health monitoring.
Battery size may not be the sole efficiency improvement. Rumors also point to the smartwatch adopting Qualcomm’s Snapdragon Wear Elite processor instead of Samsung’s Exynos W1000, which could further extend runtime.
5G support might offset some of the gains. Leaks have hinted at a 5G‑enabled Galaxy Watch Ultra 2, possibly launching first in markets such as the US and South Korea. While 5G would make the watch more independent of a phone, it could also drain power. Until Samsung confirms details, it’s unclear how much of the larger battery will be allocated to handling 5G’s demands. The Ultra 2 is also expected to run on Wear OS 7, Google’s latest platform unveiled at I/O 2026.
The Galaxy Watch Ultra 2 is anticipated to debut alongside Samsung’s next foldable lineup, rumored for a July 2026 launch. It seems we won’t have to wait long to see whether Samsung’s next Ultra truly delivers the battery jump suggested by recent reports.