The battery life evaluation criteria, connected to an external speaker, and then adjust the brightness to half loop local video playback until the battery runs out. However, foreign media editors said the test period of life floating relatively large, so the final result is to take multiple measurements average.
The end result showed that iPhone 8 battery life of 13.5 hours, iPhone 8 Plus battery life of 13.75 hours, iPhone X battery life of 11.45 hours. The same test conditions, the Samsung Galaxy Note 8 and a plus 5T mobile phone battery life of more than 17 hours. In daily use, the iPhone 8 and 8 Plus are close to Apple's official release of battery life.