iPhone 13 Pro’s 120Hz display limits some third-party app animations to 60Hz

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With this year’s iPhone 13 Pro and Pro Max, Apple lastly introduced its ProMovement display know-how from the iPad Pro over to some of its telephones. The characteristic permits the brand new high-end iPhones to refresh display screen content material up to 120 instances per second, thereby making a a lot smoother interface expertise. The impact is most noticeable when scrolling, however virtually each facet of a UI can profit from a better refresh rate.

Am I right in seeing that UIView.animateWithPeriod APIs aren’t clocked at 120Hz on iPhone 13? On UIScrollView, system ones, and Metal by the appears to be like of it, relaxation continues to be 60Hz? pic.twitter.com/t3MeM9cj0E

— Christian Selig (@ChristianSelig) September 24, 2021

Unfortunately, it appears to be like just like the iPhone 13 Pro and Pro Max restrict their ProMovement shows in a single notable context. According to noticed by , the telephones cap some animations in third-party apps to 60Hz. Scrolling and full-screen transitions render as anticipated however different animations don’t. The impact is outwardly jarring. What makes it worse is that it’s not one thing you’ll see when utilizing any software from Apple; the iPhone 13 Pro and Pro Max don’t implement that very same limitation on the company’s apps.

What makes the scenario significantly complicated is that the iPad Pro doesn’t have the same restrict. It has handled first- and third-party apps equally because it was launched in 2017. A supply advised 9to5Mac the iPhone’s implementation could have one thing to do with battery life concerns. At the very least, code in iOS 15 suggests the limitation isn’t a bug. Either approach, we’ve reached out to Apple for extra info, and we’ll replace this text after we hear again from the company.

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