Apple's bangs design and Face ID technology have continued since the iPhone X was released. And with the development of technology, the bangs are also shrinking year by year. But since the outbreak of the epidemic, people need to wear masks outdoors, because Face ID can not accurately identify the facial features after wearing masks, which has caused many users who use Apple mobile phones a lot of trouble, people for Apple can support wearing masks for face unlocking is also getting higher and higher, Apple finally launched a mask unlock program in this year's iOS 15.4 version. Many users also immediately chose to upgrade when they received the push. However, after the upgrade, many users reported that the mobile phone was hot, the power consumption was fast, and the battery life became worse.
At present, Apple officially launched iOS 15.4.1, and it can be seen in the announcement of the update that this version of the update is mainly to solve the problem that the battery power is too faster than expected. I don't know if you have the first time to upgrade the experience.