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Galaxy S27 Ultra: Bigger Battery Tested, S Pen Stays
27 Aug
Summary
- A 7,000 mAh battery prototype was tested for the S27 Ultra.
- Samsung opted for a 5,700-6,000 mAh battery to keep S Pen.
- S27 Ultra battery capacity jumps significantly from S26 Ultra.

Samsung has been exploring significant battery upgrades for its upcoming Galaxy S27 Ultra. In July, leaks suggested a 5,534 mAh rated battery, translating to a typical 5,700 mAh capacity. This marked a substantial increase from the Galaxy S26 Ultra's 5,000 mAh cell.
Recent rumors indicate that Samsung even tested a prototype featuring a 7,000 mAh battery. However, this powerful unit necessitated the removal of the S Pen, a crucial differentiating feature for the Ultra line. Consequently, Samsung appears to be prioritizing the S Pen's inclusion, opting for a battery capacity between 5,700 mAh and 6,000 mAh for the final product.
This decision reflects Samsung's strategy to balance battery longevity with capacity. While the S27 Ultra will boast its largest battery ever, surpassing the 5,000 mAh mark, it is not expected to match the battery sizes found in some Chinese smartphone manufacturers' offerings.