If you’ve been loving your Galaxy Watch Ultra but always wished it lasted even longer on tough days, there’s some exciting rumor news headed your way. The Galaxy Watch Ultra 2 is shaping up to pack a much larger battery, which could make it a real winner for anyone who wants multi-day performance.
According to a fresh report from Sammobile, the Ultra 2 is expected to come with a rated battery capacity of 784mAh. Samsung will probably market it around 800mAh. That’s roughly a 35% jump compared to the original Ultra’s 590mAh battery. For a smartwatch, that’s a pretty big deal and should translate to noticeably better endurance, especially when combined with other upgrades.
On top of the bigger battery, the Galaxy Watch Ultra 2 is also rumored to get Qualcomm’s new Snapdragon Wear Elite chipset. Even though both this new chip and the previous Exynos W1000 are built on a 3nm process, the Snapdragon is expected to be noticeably more efficient thanks to its smarter architecture and a dedicated low-power NPU. That should give battery life another helpful boost.
The leaks also give us a peek at the regular Galaxy Watch 9 series. The 40mm model might get a 382mAh battery (marketed around 400mAh), which is about 23% better than the Watch 8. The 44mm version is tipped for 435mAh. Both should still support the usual 10W wireless charging.
Of course, everything is still under wraps officially. We’re probably looking at a launch later in 2026. But if these rumors hold up, Samsung seems focused on giving users more breathing room for heavy GPS use, always-on displays, and intensive workouts. Real-world results will depend on software tweaks and how you actually use the watch, but on paper, this direction looks really promising.
What do you think? Would a bigger battery make you upgrade? Keep an eye out as more details drop.
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