Vivo X300 Ultra Leak: Massive 7,000mAh Battery and Global Launch Window Revealed

It looks like vivo is preparing to push the limits of flagship endurance. Fresh leaks concerning the rumored vivo X300 Ultra, the anticipated top-tier model in the X300 series, have surfaced, providing exciting details about its power source and when we can expect to see it. If these whispers are accurate, the X300 Ultra is shaping up to be a true powerhouse, both in performance and staying power.

A Huge Jump in Battery Life

The most striking detail from the latest round of leaks is the reported battery capacity. The vivo X300 Ultra is tipped to feature an enormous 7,000mAh battery.

This represents a significant generational upgrade compared to its predecessor, the X200 Ultra, which packed a 6,000mAh cell. Even the newer X300 Pro model comes in slightly smaller at 6,510mAh. For users who prioritize screen-on time and rarely want to worry about charging, this potential 7,000mAh unit could make the X300 Ultra a major contender in the ultra-premium smartphone market.

When can we expect this beast? The leaks suggest a launch window sometime in Q1 2026. This expected debut aligns roughly with the previous generation’s timeline, setting the stage for a strong start to the new year.

Perhaps even more exciting for international fans is the rumor surrounding its availability. The X200 Ultra was notably a device exclusive to the Chinese market. However, sources claim that the X300 Ultra will finally be made available globally. This move signals vivo’s intent to compete directly with other major flagship players worldwide.

While the battery upgrade is substantial, vivo isn't skimping on its camera heritage. The X300 Ultra is rumored to feature a high-end camera array, including dual 200MP sensors. One of these is expected to serve as the main camera, while the second 200MP sensor will reportedly be dedicated to the periscope zoom lens.

Rounding out the impressive camera specs is a mention of a larger 50MP ultrawide sensor. These specifications suggest that the X300 Ultra is aiming for photographic dominance, combining high resolution with massive sensors for detailed, versatile photography.

The vivo X300 Ultra is shaping up to be more than just an iteration. With a massive 7,000mAh battery, a global launch strategy, and next-level dual 200MP camera technology rumored, it's clear that vivo is aiming for the top spot. As we approach 2026, tech enthusiasts will be watching closely for official confirmations on this highly anticipated flagship.