Since the release of the official version of iOS 15.2, this version has been on the hot topic several times, and all of them praise the smoothness of the version. Many users are admiring the upgrade, and I am one of them.
At present, the official version of iOS15.2 I have used for three days, you can confirm that it is indeed smooth after the update, my last version is the official version of iOS15.1.1, although my iPhone 13 has been used for less than two months, but in the official version of iOS 15.1.1 feels to be unresponsive, not so follow-up, and in iOS 15.2 the official version is obviously followed, the silky version of the new machine version is back.
But at the same time, I also found that the official version of iOS15.2 is more power-hungry, and the original endurance of the iOS 15.1.1 official version felt like a crotch, and the endurance of the official version of iOS 15.2 was even worse than the official version of iOS 15.1.1. In the past, it was used for an average of about 14 hours in full power, but it was only used for about 11 hours in the days after the upgrade. What's even more outrageous is that last night's flight mode standby lost 10% of the power overnight, and the battery life is not as good as a day. Colleagues' iPhone 12s will not be powered down like this.
Although the official version of iOS 15.2 is indeed smoother, the battery life is also worse, which belongs to the demolition of the east wall to make up for the west wall. Therefore, students who have requirements for battery life, this version is cautious.