Fixjeiphone NL has performed the world's first tear down of the new iPhone XS. The article explains all of the parts inside of the smartphone and improvements made to the design in comparison to the iPhone X. Make sure to enable the English subtitles in the video. Battery (capacity): we can indeed confirm that the iPhone Xs has 1 battery cell. The Xs battery has iPhone Xs batterya capacity of 2658 mAh. The striking thing is that the capacity of the battery is less than the iPhone X (has 2716 mAh), Apple indicates that the processor is more efficient so the battery life according to Apple about 30 minutes longer to go.