Samsung’s Galaxy S27 Pro and Galaxy S27 Ultra could receive substantial battery-capacity increases, according to new entries in the official 3C certification database in China. The listings identify nominal capacities of 5,087mAh for the Galaxy S27 Pro and 5,534mAh for the Galaxy S27 Ultra.
These are nominal, rather than typical, battery ratings—the latter are the figures Samsung would normally use in consumer-facing specifications. Earlier 3C information also pointed to up to 60W wired charging for both upcoming models.
| Model | Nominal battery capacity | Wired charging |
|---|---|---|
| Galaxy S26 Ultra | 4,855mAh | 60W |
| Galaxy S27 Pro | 5,087mAh | 60W |
| Galaxy S27 Ultra | 5,534mAh | 60W |
For the Ultra, the 3C figure is 679mAh higher than the Galaxy S26 Ultra’s 4,855mAh nominal capacity, while the charging rating appears unchanged at 60W. If Samsung ultimately markets the S27 Ultra with a typical capacity around 5,700mAh, as earlier pre-release information has suggested, it would mark a significant move beyond the roughly 5,000mAh level long associated with the company’s top Galaxy S models.
The Galaxy S27 Pro is also notable because its listed nominal capacity exceeds that of the S26 Ultra. CAD renders previously linked to the device have indicated a more compact handset with an approximately 6.6-inch display and no S Pen, while unconfirmed reports place its typical battery capacity near 5,200mAh.
Elsewhere in the lineup, early reports have suggested a battery around 4,900mAh for the standard Galaxy S27, versus 4,300mAh on the Galaxy S26, though that claim has not been backed by a commercial specification sheet or a battery certification. Samsung may also retain a Galaxy S27+ alongside the Pro rather than treating the Pro as a direct Plus replacement.
The certifications do not confirm Samsung’s final advertised capacities, launch timing, or regional availability. The key detail to watch is whether the eventual typical ratings match the reported estimates, particularly for an S27 Ultra that may prioritize a larger battery over a further charging-speed increase.
