Samsung Galaxy Tab S12 Plus: New Leaks Confirm Firmware Testing and Launch Timeline

The tech world is buzzing with anticipation as Samsung prepares its next generation of flagship tablets. Recent reports indicate that the development of the Galaxy Tab S12 series is moving forward at a rapid pace. Following the success of the Galaxy Tab S11 lineup, Samsung is now focusing on the successor that promises to push the boundaries of productivity and performance in the Android tablet market.

Firmware Testing Begins for the Galaxy Tab S12+

Last month, evidence surfaced that Samsung had begun testing software for the Ultra variant of its next tablet. Now, the momentum has shifted toward the middle sibling of the family. A firmware file specifically designed for a device with the model number SM-X846B has been identified on Samsung’s official servers. This specific model number is widely recognized by industry insiders as the Galaxy Tab S12+.

The discovery of firmware version X846BXXU0AZE5 is a significant milestone. It confirms that the hardware design has likely reached a stable stage, allowing Samsung’s software engineers to begin optimizing the user interface and features for the upcoming release. While the software is in its early stages, this move brings the device one step closer to its commercial launch.

What We Know About the Hardware and Battery

Details regarding the full specifications of the Galaxy Tab S12 Ultra and Plus remain scarce, but some key figures have leaked. The Galaxy Tab S12+ is expected to house a substantial 10,392mAh battery. This capacity suggests that Samsung is prioritizing battery life, ensuring that professional users and creators can work through the day without reaching for a charger. Other hardware aspects, such as the processor and display technology, are still under wraps, though many expect the latest Snapdragon or Exynos flagship chips to be at the helm.

Launch Timeline and Release Cycle

Samsung typically adheres to a consistent refresh cycle for its premium mobile devices. Given that the Galaxy Tab S11 series arrived in September 2025, it is highly probable that the Galaxy Tab S12 lineup will follow suit. Industry analysts are currently pointing toward a September 2026 launch window, which would align perfectly with Samsung's annual tablet strategy.

When will the Galaxy Tab S12+ be released?

Based on Samsung's traditional annual release cycle, the Galaxy Tab S12 series, including the Plus model, is expected to debut in September 2026.

What is the battery capacity of the new Galaxy Tab S12+?

Current leaks indicate that the Galaxy Tab S12+ will feature a large 10,392mAh battery, designed to support high-performance tasks and long usage periods.

What does the firmware version X846BXXU0AZE5 mean?

This firmware version indicates that Samsung has officially started testing the software environment for the SM-X846B (Galaxy Tab S12+), signaling that the device is moving through the final stages of development.

Are there other models in the Galaxy Tab S12 series?

Yes, Samsung is developing a full lineup, which is expected to include the standard Galaxy Tab S12, the Galaxy Tab S12+, and the high-end Galaxy Tab S12 Ultra.

🔎 As the development of the Galaxy Tab S12+ progresses, it is clear that Samsung is committed to maintaining its lead in the premium tablet space. With firmware testing already underway and impressive battery specs surfacing, the wait for September 2026 will be filled with even more exciting discoveries. Whether you are a power user or a casual consumer, this new generation of tablets is shaping up to be a significant upgrade over its predecessors.