Samsung’s Galaxy S27 Pro and Galaxy S27 Ultra have appeared in China’s 3C certification records, revealing charging details and apparent battery capacities for both upcoming phones. The listing indicates that each model will support 60W wired charging, while the batteries could be significantly larger than those in the current Galaxy S26 Ultra.

The certification records do not amount to a full product announcement, so Samsung has not yet confirmed the final specifications or advertised battery ratings. However, the figures provide an early indication of how the two phones may compare with their predecessors.

Galaxy S27 Ultra could get a 5,700mAh battery

The Galaxy S27 Ultra is listed with a rated battery capacity of 5,534mAh. Smartphone makers commonly advertise a rounded typical capacity rather than the lower rated figure, meaning Samsung could market the battery as having a 5,700mAh capacity.

If that happens, the Galaxy S27 Ultra would offer 700mAh more advertised capacity than the Galaxy S26 Ultra, according to the available certification information. The increase would represent a notable change for Samsung’s flagship range, which has generally used smaller batteries than some competing phones from Chinese manufacturers.

Galaxy S27 Pro may also exceed the S26 Ultra

The Galaxy S27 Pro is listed with a rated capacity of 5,087mAh. That could translate into a typical advertised capacity of 5,200mAh, although Samsung’s final marketing specification remains unconfirmed.

That would give the smaller Galaxy S27 Pro a larger battery than the Galaxy S26 Ultra. The available information does not provide the phone’s physical dimensions, so it is not possible to assess how the battery increase might affect the device’s size or weight.

Both models reportedly retain 60W charging

The 3C records also point to 60W wired charging for both the Galaxy S27 Pro and Galaxy S27 Ultra. That matches the charging support associated with this year’s Galaxy S26 Ultra, suggesting Samsung may be increasing battery capacity without raising its wired charging speed.

Charging performance will depend on factors such as the compatible charger and Samsung’s final software and hardware implementation. The certification confirms the stated charging capability, but it does not indicate how quickly either phone will reach a full charge.

What the certification does and does not confirm

The Chinese certification provides useful early hardware information, but it does not confirm pricing, release timing, processor details, camera specifications or global availability. It also lists rated capacities, while the likely 5,700mAh and 5,200mAh figures are estimates based on how phone batteries are typically advertised.

For now, the main takeaway is that Samsung may be preparing larger batteries for both Galaxy S27 models while keeping 60W wired charging. Official specifications will be needed to confirm the final capacities and the phones’ broader feature sets.