Apple traditionally does not give much technical information on its novelties, focusing on the practical application of certain elements. Therefore, details such as the frequency of the processor, the amount of RAM or the capacity of the battery have to be learned from third-party sources. Chinese regulator TENAA, for example, disclosed information about the battery iPhone 8 and iPhone 8 Plus ( details). So, the younger version received a power supply for 1821 mAh (7% less than the battery for 1960 mAh from the iPhone 7), while the older one was equipped with a battery with a capacity of 2765 mAh (downgrade by 8% compared to the iPhone 7 Plus).
However, thanks to the new 10-nm chipset and developments in the field of software, the claimed battery life remained the same as that of its predecessors. Also, TENAA showed the maximum frequency of the processor (2.4 GHz) and confirmed the amount of RAM – 2 and 3 GB, respectively. iPhone X has not yet been found in the database, but rumors say that it is equipped with 3 GB of RAM and a battery for 2700 mAh.