Galaxy Tab S12 Ultra Leak Points to Carryover Battery and Display, New Dimensity 9500 Inside

Samsung's flagship tablet line is shaping up for an interesting 2026, and not necessarily because of what's changing. A fresh leak from GalaxyClub.nl suggests the upcoming Galaxy Tab S12 Ultra will carry over most of the hardware that defined the Galaxy Tab S11 Ultra, with the silicon doing most of the heavy lifting on the upgrade side.

What's new

Start with what the leak says is actually different, because the list is short. The Tab S12 Ultra is reportedly built around a flagship MediaTek Dimensity chipset, most likely the Dimensity 9500. That would mark a meaningful shift for the platform, since MediaTek's top-tier parts have closed much of the gap with Qualcomm on both CPU throughput and sustained GPU performance. If Samsung pairs the 9500 with adequate cooling in a 14.6-inch chassis, the headroom for gaming and on-device AI workloads should improve noticeably over the previous generation.

There's also a structural change higher up the lineup. An earlier leak claimed Samsung may skip the standard Galaxy Tab S12 entirely this cycle, launching only the Tab S12+ and Tab S12 Ultra under model numbers SM-X846 and SM-X946. That would push the entry point for the S12 family upward and lean the whole series toward larger, more expensive configurations.

How it compares

This is where the leak gets less exciting for anyone hoping for a generational leap. According to the report, the Tab S12 Ultra keeps the same 14.6-inch display size as its predecessor. Battery capacity stays in the same range as the S11 Ultra's 11,600mAh cell, and charging speed reportedly holds at 45W. For reference, the Tab S11 Ultra currently sells for around $1,120, and it already sat at the top of the Android tablet field on screen size and battery endurance.

The practical takeaway is that battery life and charging behavior should land close to the current model. A 45W ceiling on an 11,600mAh battery means a full top-up still takes well over an hour, which has never been this tablet's strong suit. Competitors like Apple's iPad Pro lineup don't charge dramatically faster either, so Samsung isn't losing ground here, but it isn't gaining any. The 14.6-inch panel remains larger than almost anything else in the category, and if Samsung sticks with its OLED tuning, contrast and color should stay among the best available.

The real comparison point becomes the chipset. The Tab S11 Ultra ran a Dimensity 9400, so moving to a 9500 is an iterative bump rather than a reinvention. Expect better efficiency and higher peak clocks, but the year-over-year difference in everyday browsing, note-taking, and video will be hard to feel. Heavy gaming and local AI features are where a faster SoC earns its keep.

Who it's for

If you already own a Tab S11 Ultra, nothing in this leak justifies an upgrade. Same screen, same battery, same charging, with a faster chip you'll rarely push to its limits on a tablet. The people who should pay attention are buyers coming from a Tab S9 Ultra or older, or anyone who skipped the S11 generation. For them, the S12 Ultra would bundle the largest premium OLED in the category, a current-gen flagship processor, and Samsung's DeX desktop mode into one device.

Samsung is expected to launch the Galaxy Tab S12 series in September 2026, following the same timing as the S11 family. Every detail here comes from a single leak, so treat the specifics as provisional until Samsung confirms them. The pattern it describes, a steady-state hardware refresh anchored by a new chipset, fits how the Tab S line has evolved over the past several cycles, and it suggests buyers should weigh price against the modest spec gains rather than expecting a redesign.